Mother-in-law's vibrating egg

My Mother-in-Law's Vibrator
(Part 1)

When my wife and I were newlyweds, we lived at her parents' house because of our work. Her house was large; it was a general's residence in a military dependents' village, with a small courtyard that encompassed the entire second floor. The first floor had a living room, kitchen, a Japanese-style room, and my parents-in-law's room. My wife and I had our room on the second floor, as did my sister-in-law's room. She was a sophomore in college that year, and she used the Japanese-style room downstairs almost exclusively. The second floor also had my father-in-law's study. My father-in-law was fifty-five years old, a retired general. After his discharge, his company required frequent business trips and social engagements. Whenever he was home, I would go to his social events two or three days a week to pick him up and take him home. My mother-in-law was forty-eight years old, a housekeeper; a typical military dependents' village wife, she would play mahjong whenever she had free time.

My wife and I had both recently graduated from university and were working at nearby companies.

When my sister-in-law is away, I use her Japanese-style room for work. My father-in-law's study is always locked, and my wife tells me not to go in there. I asked her why, and she said maybe there are some secrets, but just don't go in. I follow that rule.

One morning in July, after arriving at the office, I found the entire case file from the night before, which I had worked on overtime, in the Japanese-style room at home. I wanted to go home immediately to get it, but the office was busy that morning. I thought about asking my sister-in-law, who was on summer vacation, to bring it to me, but her phone was off. Around 2 PM, I decided to go back and get it myself, hoping to get it to the office before leaving work.

I opened the silent front door and entered the quiet yard, only to realize I hadn't brought my house key. I usually use the key hidden in a pot on the outside of the front door. With no other option, I went around to the backyard to see if my mother-in-law had forgotten to lock the back door when she went out to play mahjong. As I walked down the corridor to the window outside my mother-in-law's room, I heard a series of moaning sounds, "Mmm... Ee... Ee." I froze. My mother-in-law should be playing cards now; no one should be home! Could it be my sister-in-law? No wonder no one answered her phone.

My sister-in-law is young and beautiful, and she's my dream girl. Judging from those lewd sounds, it must be the moans of a woman masturbating. In a flash, I decided to eavesdrop and peek, not wanting to disturb my lewd sister-in-law. I slowly approached my mother-in-law's window. The yard wall was high, and trees taller than the wall surrounded the area, blocking their view from the outside. The trees also provided excellent soundproofing. I crouched down and peered into the window; the curtains weren't fully drawn, a habit of Yuefu and her husband.

The room was a bit dark, and there was a screen on the outside, so I couldn't see clearly at first. Once my eyes adjusted to the darkness, I took a closer look; "Wow! This is incredible!" My heart nearly jumped out of my mouth—"The person inside is my mother-in-law!" My heart was pounding wildly. My mother-in-law, though past her prime, had fair skin and looked very young. She usually acted like an official's wife, dignified and virtuous. Even I, her son-in-law, had suffered quite a bit before marrying her daughter. I never expected her to be so lewd today, displaying such a wanton side before me.

My father-in-law had been discharged early from the military, receiving a generous monthly pension. His current company offered good benefits, and his years in the military had given him good physical fitness. Why would my mother-in-law need to masturbate? Was she a lustful woman with insatiable desires? But my parents-in-law were always so loving; I couldn't see anything amiss, and I couldn't figure it out.

The sounds of lewd moans continued to emanate from inside. Although it was a one-woman show, it made my blood pressure soar, my penis erect, and my eyes follow suit. My mother-in-law's vagina was already soaking wet. She reached around her buttocks with one hand, digging into her vulva, while the other held a vibrator, constantly stimulating her clitoris. The moans and groans from her mouth, combined with the buzzing of the vibrator and the wet sounds of her fingers digging, created a symphony of erotic pleasure.

The sight and sound, the connection between my mother-in-law and me as family, stirred a storm within me, making me feel an irresistible urge to release. I pulled out my penis and, following my mother-in-law's rhythm, forcefully swung my raging member.

"Ee...ee...um...um...um...oh...ah!" As my mother-in-law's lewd moans abruptly stopped, I ejaculated, leaving patches of semen on the wall and the grass. My mother-in-law and I, separated by a wall and a window, both breathless, the scene too stimulating, leaving me feeling dizzy.

"Hey... Brother-in-law, why are you standing there? Why don't you come inside?!"

Oh no; I was almost fainting from pleasure when my sister-in-law called me, and instantly; I fell from heaven to hell.

I thought to myself: Why wouldn't I go in? Because I forgot my keys, and I called your cell phone but you didn't answer, so I came back to get my things. I happened to see your mother, my mother-in-law, masturbating. I'm such a dutiful daughter, how could I disturb her! Damn it! And; didn't you see I was peeping at your mother masturbating? ...Thinking of this; wait, the front door usually opens silently, so... did my sister-in-law see me peeping inside...? What am I going to do! Most importantly—my penis isn't back in my pants yet, I must look incredibly lewd and embarrassed!

"Oh... I came back to get the document I finished working on yesterday. I didn't bring my house key, so I thought..."

Seeing my sister-in-law walking towards me, I nervously turned to face the wall, quickly putting away my erection. It was just too stimulating, and my sister-in-law... was only wearing a nearly transparent top, almost revealing her sexy underwear, and her shorts were so short they almost reached her thighs. The continued stimulation caused my pants to bulge high, showing no signs of abating.

"Huh? Brother-in-law... you also know there's a house key hidden here... I didn't know! Did Mom tell you?" My sister-in-law walked over and said to me, smiling before squatting down and reaching under the potted plant by the window. Sure enough, she pulled out a key.

"Huh...? Brother-in-law, what's this?... Ouch... you have some on your pants too... It's so smelly and sticky..." Oh no

, I just ejaculated all over the wall and floor, and now my pants are stained too. My sister-in-law saw it and even helped wipe the semen off my pants. It was on my knee. My sister-in-law was wiping it while looking up at me, talking to me like she'd just finished giving me oral sex and was cleaning up the mess. Damn! This made my penis throb again, bouncing up and down in my pants. My sister-in-law wasn't a child. When she looked up and saw this, after all, he was her brother-in-law. She, in her early teens, blushed to her neck and stood up, too shy to say a word.

At that moment, I glanced out the window. My mother-in-law was no longer in the room; she'd probably gone to shower. My sister-in-law followed me into the window, seemingly understanding something. She glared at me, her face red, and then lightly smacked my shoulder.

"Brother-in-law… how could you do this… so annoying…" she said softly. I think she must have seen a lot since she came in; maybe she'd seen the whole thing.

"Um… Xiaojuan… wait, Xiaohan (my wife), she… you…" I stammered, trying to get her to stop telling anyone.

"Hmm... I know, all you boys are like that, you just like to peek at things!"

she said knowingly.

"Just now, my mom was... you know, right?" she asked again.

"You know... what do you mean, 'you know'?" I knew this college student had a strong thirst for knowledge, and I wanted to slowly enlighten her. (Haha)

"Stop pretending... I'm going to tell my mom right now... Brother-in-law, are you going to tell her or not!" She tugged at my shirt sleeve, half-whining.

"Oh... you're a kid, you don't understand, don't ask." I deliberately pushed her away. Then; my sister-in-law immediately pretended to leave to tell on me.

"Okay... okay, I'm scared of you, but you can't tell anyone, it's a secret." After I finished speaking, my sister-in-law nodded.

"I know, just now my mom was... was... masturbating... right?" I didn't expect my sister-in-law to come closer to me and whisper these words to me.

"Hmm... yes! How did you know?" I replied irritably.

"Hehe, brother-in-law, I've been in here for a while. As soon as I came in, I saw you by the window...that...oh, that!" My sister-in-law started explaining herself. Sure enough, she had seen it all.

"What about me? What's wrong with you seeing me?" I wanted to tease her.

"Hehe...it's just...it's just masturbating. I saw it all—this is your...your...semen...oh, I hate it!" My sister-in-law got closer and closer to me as she spoke, her voice getting softer and softer.

As she spoke, she showed me the semen that was still wet on her hand after wiping it off my pants.

"Mmm...yes...yes." I felt like a child who had done something wrong.

"It's really sticky, but it's not as fishy as I imagined. Okay...brother-in-law, I won't tell anyone, but you owe me one." She smelled the semen on her hand as she wiped it off with toilet paper, then put the toilet paper in her bag.

"What do I owe you? What do you want? Don't be too outrageous, you know your sister is very strict with money!" I wanted to know the price of my extortion.

"Hehe, don't worry, I won't go too far. I just want you to treat me to a movie, then to a five-star restaurant buffet, and also, tell me what happened just now, that's all!" My sister-in-law rattled off a string of conditions. They weren't too demanding, and I should be able to manage them. The only difficult part was telling me what happened just now, because the main character was my mother-in-law's mother! It was a bit tricky to strike the right balance.

"Brother-in-law, you can't go back on your word. I have proof now, don't forget!" she warned me again.

After saying that, she pulled me towards the door, but unexpectedly, my mother-in-law came in from the back door...

"Mom...!" My sister-in-law and I greeted her together.

"What are you two doing here? Come inside, Asheng... Why are you off work so early today? Uh...? What is this stuff? It's all over my flowerpots, so sticky, and it smells so weird... And on the floor too... This..."

My mother-in-law rattled off a string of words, then noticed the mess I'd just made. She bent down and looked at the semen all over the floor, her face turning red and then white. She looked out the window, then at me, and glared at her daughter. My sister-in-law and I both turned ashen-faced.

I was dead... Caught red-handed, with witnesses. I was so scared I went limp, silently awaiting the harsh accusations. It was all over... Lust is a double-edged sword.

"Asheng... You didn't bring your keys. Didn't I tell you there was something hidden here? Are you feeling unwell? Why didn't you see a doctor first?" My mother-in-law finally asked, her face as red as a turkey's.

Hmm... Sure enough, my mother-in-law had guessed what had happened, but she was covering for me, clearly not wanting to expose me, perhaps to save face.

“My brother-in-law forgot something at home and has to come back for it! He can’t find the key! I told him!”

My sister-in-law was really helpful. I laughed it off.

“Hmm… honey… go in and get your brother-in-law a cold drink. It’s so hot, and he has to go back to the company soon. Hurry up. Your brother-in-law and I will find a new place to hide the key so he won’t forget it again. Let her find a place that’s easy to remember.” My mother-in-law, her face flushed, looked at the semen splattered everywhere and sent her daughter away. She bent down as if searching for something. Just then, my sister-in-law and I saw my mother-in-law’s loose top, revealing her proud breasts; she wasn’t wearing a bra… My penis instantly became erect again, changing rapidly.

After my sister-in-law agreed, she walked towards the front door. Before leaving, she winked at me and lightly punched my stomach. She noticed my change too.

After my sister-in-law left, my mother-in-law looked up at me, her face turning red again.

"You've been back for a while?...Um...Were you looking for...the keys here just now?" My mother-in-law straightened up and asked me. At the same time, she noticed the bulge in my pants and blushed again.

"Yes...yes...Mom...I was looking for the keys!" I answered guiltily, looking at the bulge in my pants with nothing to cover it, feeling extremely embarrassed.

"You...didn't see anything, did you!...Don't...don't do things that are bad for your health, hasn't Xiaohan been ignoring you lately?"

My mother-in-law was really smart; she guessed the situation immediately. I wanted to confirm but was shy and wanted to protect my self-esteem. This shy look was really alluring! My wife wasn't ignoring me, Mother-in-law, you've forgotten, we're newlyweds!

Every night is filled with passion, how wonderful! It's just that I happened to witness your lewd and exciting scene, and if I didn't ejaculate, I'd be abnormal, and your daughter, my wife, wouldn't be happy either.

"Mom...I didn't see anything...I..." I stammered.

"Hey...don't say that! Do you think your mother is a three-year-old? You're healthy and strong, that's why I can hold my grandson. You're all grown up now, I don't blame you, but...but...let's leave it at that for today, but don't tell your wife, and that little brat, Juanjuan, she's got so many problems, just keep her in check, understand?" My mother-in-law's imposing manner remained unchanged.

"I understand...Mom, I...I won't..." I was interrupted before I could finish.

"Alright...alright...go inside, I'll go water the flowerpots and lawn, your dad will be back later, he always takes this route."

"Mom...I'll get you the hose."

"Hmm...okay..."

It turned out my mother-in-law was really thoughtful, not forgetting to help me cover up the evidence. After saying that, she walked over to me, gave me a disapproving look, then looked at my bulge, and suddenly smiled coquettishly, covering her mouth. I went with her to get the hose, I had to clean up my own mess.

As I approached the water tap, I was about to bend down and squat down to pick up the hose; unexpectedly, my mother-in-law bent down and picked up the hose first. With that, her entire wrist (she was wearing a short-sleeved shirt) rested on my erect penis, and I once again saw her bare breasts.

Because my body was bent over, her wrist and wrist were now trapped between my hips; any movement would cause my penis to throb even more forcefully. I was stunned by this scene, unsure whether to move forward or backward. I held on for a moment, and then I noticed that my mother-in-law seemed to be slightly moving her arm, not trying to move away, but wanting to touch me more firmly.

"Um… Ah Sheng… help me put the hose on, I… I… I'm going to water the garden." My mother-in-law's voice was like a mosquito's buzz, and it trembled slightly.

"Oh… I'll do it." Seeing that my mother-in-law's hand wasn't going to leave, I took the hose end from her hand and slowly pulled it up, preparing to catch the tap.

As I pulled out, I let my mother-in-law's arm move up and down slowly, not too much, but enough for her to feel my heat and hardness. I was still staring at her breasts, and her nipples were now erect. I guessed her vagina was already overflowing with wetness. I had a strong urge to have her hold my big, thick penis and masturbate me...

"Mom... it's ready..." My voice trembled.

"Oh... I'm going to water the flowers... Oh... it's so hard... it's killing me..." When my mother-in-law picked up the hose, she touched my raging penis with the back of her hand. Even through my pants, I was so excited I wanted to ejaculate immediately!

Later, I went into the living room. My sister-in-law was already upstairs, and there was a refreshing juice on the table. I drank it down, and it immediately cooled me down. Today was really exciting. When my wife came home tonight, I couldn't wait a moment longer. I wanted to have sex as soon as I entered the room, but my wife said she was tired and wanted to wait until bedtime. Oh well, I had to wait.

My mother-in-law's vibrating egg (middle)

It was finally evening. My father-in-law was probably still in the study, and my sister-in-law had gone to bed early. As usual, it was time to have sex. I impatiently stripped my wife of all her clothes—actually, she was only wearing underwear. My eyes were practically spitting fire as I moved quickly and decisively.

"Hey...wait a minute...honey...why are you so excited today? Oh...your...my thing...how did it get so hard all of a sudden!" my wife said with a lewd smile.

All afternoon, your mom and your sister had me burning with desire. How could I not be excited? I hadn't had a proper release all day, how could I not tease you to my heart's content?

My parents-in-law were overjoyed when they heard we were staying at their house temporarily. They love their daughter very much, and by extension, they love me too. They specially decorated our room, spending a lot of money on soundproofing such as double-glazed windows and sound-absorbing walls, so we could enjoy our lovemaking anytime without worrying about disturbing the family.

Seeing what happened this afternoon, I actually made a special arrangement today: I deliberately left our door half-closed and the French windows on the balcony (which connects to my sister-in-law's room) half-open. This way, I believe my parents-in-law and sister-in-law can witness our intimacy. As for my father-in-law, I think he still needs to do his homework. As for my mother-in-law, it was to give her a real look, proving that my big dick wasn't just for show. As for my sister-in-law… I just wanted her to know that I'm also quite "fierce," so she shouldn't underestimate me.

"Oh…ss…ee…oh…mmm…mmm…husband…so hard…hard…oh…so…good…"

"Oh…I…am…my…wife…you…today…so…wet…so…hot.Oh…"

"Mmm…mmm…today…we're…going…to…last…longer…oh…husband…"

"Mmm…I’ll…fuck…you…little…slut…to…death…"

While we were getting really into it, I kept glancing around. My wife's moans were always very unrestrained.

If I didn't stop her, the whole house could hear her! Today I was particularly vigorous, and with the interesting situation about to unfold, I thrust harder, while my wife's moans and groans grew even louder. I took out a blindfold and covered her eyes, telling her that we were going to do something special today. Wearing the blindfold, she turned back and gave me a lewd smile—"Wife, you're going to be a little more wanton today."

Finally… after a few minutes, I saw a shadow outside the door. I had my wife face the TV, bend over, and let me attack from behind. This way, the doorway and the partially closed French windows offered a clear view of the room. We hadn't turned off the lights today; actually, we never turn them off when we make love.

My sister-in-law was already leaning against the French windows, quietly peeking. She even knew to turn off the balcony lights so she could watch without restraint, and because of the difference in light, she could see clearly into the room. And by the door? The key point is by the door. Was it my father-in-law or my mother-in-law peeking? If it was my mother-in-law, then my father-in-law had no chance to watch; otherwise, it was my mother-in-law's regret. Of course, it would be best if the two elders could watch together.

While I was thrusting into my mother-in-law's cunt, making her moan and groan, I kept an eye on the situation outside. I saw my sister-in-law, watching as she slipped her hand inside her bra, caressing her breasts. Gradually, she also slipped her hand inside her panties, caressing her cunt. Suddenly, she took off all her underwear, naked on the balcony, writhing and masturbating, moaning softly and wantonly. I could hear her; I wondered if my wife could. At the

door, I also saw a shadow. After a few minutes of observation, I confirmed it was my father-in-law. No doubt, because through the crack in the door, I could see his study door was open, letting in a faint light. So I thrust even harder, wanting to give my father-in-law a more immersive and vivid experience, to repay his thoughtfulness, and also hoping that my mother-in-law could indirectly benefit as well. As time passed, my father-in-law couldn't hold back any longer. I saw him slightly push open the door, and now I could almost see half of his body, but I only used the corner of my eye to watch for any movement outside. I glanced at my father-in-law; he was only wearing underwear—no… he had taken it off down to just his underwear, and through the underwear, he was forcefully gripping his large, thick, and powerful penis. Then, I deliberately turned my wife slightly towards the balcony so her father could see our genitals more clearly. Suddenly, I wanted to give my father-in-law a little more of a treat, and also let the young woman on the other side see my magnificent cock.

“Wife…, let’s play daddy hitting daughter, okay?”

“Mmm…mmm…mmm…mmm…mmm…okay…husband. No…yes. Dad…Dad…Dad…Dad…don’t…hit…me…don’t…hit…daughter…oh…”

This is a game we often play. My wife’s father is very strict with them, and he often mentioned it to me when we met. So, during sex, I would call her “Dad” and spank her buttocks. Often, when we played this, my wife would get inexplicably excited, and she would get so wet that the sheets would be soaked like she was peeing. We call this a G-spot orgasm.

So my wife and I often played this game. Even after we got married and moved into her parents’ house, we still often played this game.

“You’re naughty…I’m going to…spank…today…Dad…is going to…spank…good…good…spank…your…buttocks.”

After saying that, my big dick left her vagina, still standing strong. I stood in front of the TV so my sister-in-law could see my big dick clearly. When I pulled it out, a stream of vaginal fluid spurted out…soaking the sheets. I picked up the belt, bent it halfway, and gently slapped her buttocks while simultaneously caressing her wet vulva with my other hand. I turned her body around, and now her vulva was completely exposed to her father-in-law's eyes. By this time, my father-in-law had already taken off his pants, and that thick, hard penis was truly the stature of a revolutionary soldier!

"Oh...oh...Dad...be gentle...daughter...will be good...good...don't...too hard...oh...mmm..."

"No...you'll only be good if I hit you...what is this...say it..." I slapped her buttocks while simultaneously probing her vulva. And I increased the pressure on her vulva.

“Oh…Dad…that’s…that’s…daughter…daughter’s……cunt…so…so…good…oh…”

“Why is there so much water…tell me…did you do something bad…hmm…”

“Oh…ah…Dad…Dad…no…it’s because…Dad…made…made…make…you wet…so much water…so…good…Dad…you…are…so…

good at…doing…oh!” “Is this good enough…ah…do you want Dad’s…southern border…to teach you a lesson…Dad’s southern border is the great southern border of revolutionary soldiers.”

“Yes…yes…yes…Dad…’s…stick…beat…beat…bad daughter…make…daughter…so…good…to…die…oh…Dad…faster.faster…”

I looked at the door, and then I saw that there was another person at the door, and she hit my father-in-law. It was my mother-in-law.

My father-in-law couldn't take it anymore. Just as my mother-in-law was about to drag him downstairs, he grabbed her and quickly stripped her naked. As if in a show of force, he turned her to the side, held her against the doorframe, and rubbed his large penis against her entrance a few times before inserting it. I don't know if my father-in-law knew I could see what they were doing, but this action allowed my mother-in-law to see my naked body and her daughter's lewd posture. When my father-in-law withdrew from behind, my mother-in-law came into his line of sight, but we were staring directly at each other. I gave her a lewd grin, and she tried to lower her head, but my father-in-law held her down, preventing her from moving. Now, I was back at it again. I turned my wife over so she was lying on her back, and I spread her legs wide, opening her vagina to my mother-in-law. A moment later, I thrust in again.

My wife immediately started moaning again, while my mother-in-law kept quiet. I continued to masturbate her daughter, watching her wanton posture. I thrust harder and harder, and my wife couldn't take it anymore, screaming. At this moment, my father-in-law heard his daughter's moans and moved my mother-in-law so that her face was facing the corridor, allowing her to watch our actions. But he used too much force, and the door opened even wider, two-thirds of the way open. I deliberately didn't look at the corridor, but turned my head and saw my sister-in-law kneeling in front of the French windows, directly watching us, watching her parents make love. This was so exciting! My wife's whole family was here, watching, enjoying the wanton pleasure of making love. How wonderful!

"Oh... Dad... Dad... I'm coming... Oh... Faster... So good... I... I'm coming... Oh... Ah..." my wife cried out again.

"Oh... Husband... Gently... Gently... Ah... Oh... I'm coming too... Oh... Oh..." my mother-in-law even cried out, unable to hold back anymore.

My father-in-law remained silent, thrusting forcefully into my mother-in-law. His dedication was evident, a true soldier's spirit. He shifted his position as he thrust, slightly closing the door, but we could clearly see their connection—my mother-in-law's buttocks and his large penis entering and exiting.

My mother-in-law's scream startled my wife and me. My wife hesitated, then lifted her blindfold, revealing the scene at the doorway. Afraid she would be too frightened and stop, I immediately grabbed her ankles, lifting her buttocks high, and began thrusting even more forcefully. Sure enough, my wife screamed again, removing the blindfold and throwing it on the floor, her eyes fixed on her parents' performance.

"Oh… Dad… Dad… Daughter… is coming… Oh… Faster… Good… So good… So good… Coming… Oh… Ah…" my wife cried out, then released a gush of vaginal fluid, making my glans throb. With one final thrust, I ejaculated entirely into my wife's uterus.

“Oh…husband…ah…um…ee…oh…I…came…came…oh…oh…”

My mother-in-law screamed wildly, then knelt down, a gush of fluid gushing from her vagina, leaving a wet puddle on the floor. After she knelt, my father-in-law gripped his large penis and began to thrust. Perhaps the movement was too forceful, because the door opened even wider, and he almost looked at the three of us before ejaculating onto my mother-in-law with great force. I saw his two daughters gasp in surprise. After a long

pause, my father-in-law, as if nothing had happened, went into his study, while my mother-in-law got up to close the door for us.

“Next time…when you do it, make sure to close the door! Go to sleep early, don’t play around.” My mother-in-law was naked, swaying her large breasts, her pubic hair still a mess, before closing the door.

My wife looked out the French windows; there was a puddle on the floor, her sister’s fluid, and her sister was still leaning against the window! My wife glared at her, and my sister-in-law left with a sly look.

"Oh... damn it... honey... why didn't you lock the door...!" my wife scolded me.

"What! Didn't you always check?" I deliberately blamed her.

"Never mind, you have to be careful next time. But..." my wife said.

"But what, is it... exciting..." I teased.

"Hehe, it's not the first time I've seen it. When we were kids... well, even now we see it! They've been so affectionate since I was little, they never close the door properly when they do it!" my wife said.

"Really? I didn't know." I said.

"Yeah, because they always do it in the morning, and you sleep in late, so you don't see it." my wife said.

"Yeah, no wonder. But what else were you going to say?" I said.

"I was going to say, I've never seen Dad's penis so clearly before, it feels so big, bigger than yours, is that true?" my wife said.

"Maybe!" I said.

"Being penetrated by that southern country isn't necessarily very enjoyable, huh? Hehe, my mom is really lucky," my wife said.

"So now, all you can think about is your dad's southern country!" I said.

"Haha...you just made me call you 'Dad,' and I came, and now you're jealous," my wife said.

Hearing her say that, my penis got hard again, throbbing against my wife. I saw her vagina, which was already dripping wet, and her nipples were erect again. My wife and I looked at each other for a few minutes, seemingly understanding something, and smiled at each other.

"My mom...she has a great figure, right? Big breasts, right?" my wife said.

"Mmm...yes, and super wet!" I said.

"I know, you saw it this afternoon!" my wife said.

"How did you know!" I said in surprise.

"Hehe...my mom told me! My sister told me too! Hehe, you pervert," my wife laughed.

"Alright! Since we're both so excited now, let's do it again. I'll use my dad's big dick, and you just think about my mom's cunt. You're not allowed to sleep until you're exhausted," my wife said with a lewd smile.

I turned my wife over to the door, made her hold onto the door frame, and, mimicking her parents' position, I started thrusting wildly into her cunt again.

She put her hand on the doorknob, and slowly... as the movements intensified, the door opened slightly...

Mother-in-law's Vibrator (Part 2)

A week later, on Saturday, I kept my promise to my sister-in-law. My sister-in-law was very excited early in the morning, and her sister, my wife, wasn't surprised either. She already knew something bad was going to happen after what had happened a few days ago, so she didn't give me any special advice and went shopping with my parents-in-law early in the morning.

We agreed to watch a movie at 2 pm, and then; I would take her to eat at the most famous five-star hotel in town for a buffet. If nothing unexpected happened, we would go home. However, judging from my sister-in-law's outfit—a short pink dress and super short mini-shorts—she probably wouldn't let me off so easily.

Time was up, and we got in the car to head to the downtown cinema.

"Brother-in-law, you like these kinds of horror movies?" My sister-in-law asked happily as soon as we got in the car, clearly in a great mood.

"Ah...it's alright, actually I prefer action movies like Transformers and Avatar!" I started the car, shifted gears, and drove off smoothly.

"So why did you book this one?" my sister-in-law asked curiously.

"Ah, your sister said you like this one, right? We can change it!" I said.

"Okay, don't change it, don't change it!...That's not the point..." she said thoughtfully.

"What else? There is a point...what is it?" I asked jokingly.

"Well...well...oh, it's about eating seafood, isn't it? And...and..." she stammered.

"And what else! Aren't we going home after dinner? Where are we going next?" I asked.

“…Oh, how annoying…you didn’t…you didn’t…you wanted to tell me that?” she said with a slight reproach.

“What do you mean, ‘that’? You’ve already seen it all, is there anything else you need to tell me? My dear second young lady!” I laughed at her.

“…Hehe…yes, I did see it, but I wanted…I wanted to hear you tell me what you saw that afternoon, the one where you were so excited you wanted to…that!” she explained.

“Oh…you brought that up again! Okay, okay, I’ll tell you! Haha!” I laughed it off.

We arrived at the movie theater parking lot. Along the way, my wife's younger sister kept asking me questions and playing with my dashcam, saying it could be used as a camera. The mention of photography immediately brought up the issue of whether I had brought a camera. I said yes, and she promptly took it out and started snapping pictures here and there. Then, she started checking my memory card, saying she wanted to see if there were any random photos, adding that since my sister and I were playing so intensely, there must be many inappropriate pictures.

The camera was a gift from me to my wife, and she's the one who usually uses it; she almost never touches it. It's usually kept in her bag, and she takes it with her all the time. I don't know why she didn't take it today. Every time my wife's younger sister looked at a picture, she praised my wife's photography skills and how beautiful the scenery was. When she saw pictures of people, she asked if I recognized them, offering her opinions. Actually, most of them were my wife's colleagues, both men and women, including former classmates, seniors, and so on. I recognized some, but not most of them.

My sister-in-law was rummaging through the bag. I reminded her that my wife doesn't like people going through her things, and if she messed it up, I wouldn't be responsible; she'd just have to get yelled at. She stuck out her tongue and winked at me. Suddenly, she found a few memory cards in a small pouch at the bottom of the bag. She was overjoyed, like she'd struck gold. She started examining the images, while I ignored her and focused on driving. She was also looking at them intently, her expression turning strange. The little devil always has questions; I was relieved that she wasn't saying anything. We arrived at the parking lot.

"Brother-in-law, is this... camera yours?... Hmm?" After parking, just as I was about to turn off the engine and get out, my sister-in-law turned and looked up, her face serious.

"I bought it for your sister. I don't use it; your sister uses it all the time... Why...?" I asked.

"Oh... then... do you want to see it?" she asked seriously.

"See what? Just scenery or photos with his colleagues? Or maybe pictures of dogs and cats..." I said.

“Look carefully… but… you have to follow today’s itinerary exactly… I don’t care…” She handed me the camera.

“Xiaojuan, I… don’t know how to operate it… you show it to me.” I said.

“How about we look at it from the back? That’s better.” she said. …I thought it wouldn’t be strange if someone walked by and saw us like this. I couldn’t persuade her otherwise, so we moved to the back seat.

“Hmm… this is her senior… this is her colleague… this is…” I explained as I looked, identifying the people in the photos. My sister-in-law leaned her whole body against me.

“Then… we should look from the back.” My sister-in-law gave me a playful look.

Wow! What?! One after another, photos of my wife dressed very provocatively appeared on the screen. The locations included the company, scenic spots, schools, the suburbs… and so on. She was taking photos everywhere. My wife was dressed in various outfits: some in underwear, some in pajamas, some in miniskirts, and most of her tops were semi-transparent. I'd never seen any of those clothes before. Her poses were incredibly lewd, and I felt incredibly embarrassed in front of my sister-in-law.

"These...are they all selfies? Do you think so?" I asked my sister-in-law to confirm. Perhaps to get a better look, she leaned closer, her breathing rapid, her chest heaving, her arms almost touching mine.

"I don't think so. Look at this one, the distance...you can't take a good selfie...and this one too..." she explained, her voice growing softer. I looked at her face; it was already bright red. Of course, seeing my sister's lewd photos was embarrassing; I felt embarrassed myself.

The more photos I looked at, the heavier my heart became—or rather, the angrier I got, because the following photos were increasingly unbearable. I saw photos of my wife completely naked, wearing only a bra, and only underwear. What's even more infuriating is that there's a whole set of nude photos of my wife at school. Several of them show her naked, leaning against the corridor railing, some with her back to me and some with her face turned towards me. There are several kids chatting downstairs (this is definitely not the fairy-like little slut from our college... she's my goddess... not my wife!). What is my wife thinking?

My sister-in-law keeps praising my wife's figure, and I'm just muttering to myself. My sister-in-law keeps leaning against me, practically straddling me. Noticing this, I actually got a physical reaction. My big gun is standing erect in my pants again. My sister-in-law's hand, holding the camera, is being nudged by my big gun. After noticing this, my sister-in-law gave me a sly smile, and then she used the inside of her bent arm to cover my raging gun and gently rub it.

"I'm so lewd, it makes you react so strongly... brother-in-law," my sister-in-law said provocatively.

"No...it's not the photos...the photos just make me angry...oh...Xiaojuan, no...please don't...not here..." I couldn't take it anymore, a desire for revenge rose within me. Whatever, I'll make fun of my sister-in-law whenever I get the chance.

"Brother-in-law, taking pictures like this? Hmm...I've done it before, just not this wildly. But...I always take pictures with girls, because guys usually pounce on me before we're done, and I'm exhausted before I get many pictures. So I guess it's your female colleagues, they took them together." My sister-in-law tried to explain for my wife, and I felt a little relieved.

A thought flashed through my mind: wow...those are two beautiful women, acting so lewdly on the spot. But then I noticed my wife's vulva was a little red and swollen. Could it be that she was pounced on a few times, resulting in this mess? Or maybe the two women... Never mind; the more I think about it, the more I realize, but my penis is getting harder and harder.

"Brother-in-law...are we still going to watch the movie?...Hehe. It's very dark in there." My sister-in-law asked with a lewd smile.

Watch...why not? I got into the front seat, turned off the car, locked the door, and, holding my sister-in-law's hand, we went into the electrical engineering department like a young couple.

The movie was called "The Cave," an adventure and extreme sports film. Basically, it involved exploring caves, one after another, with people dying and surviving, the survivors dying again, and the dead... of course, couldn't come back to life, but would mysteriously appear next to the survivors. Finally, there was a World War II tank that fell into a cave dozens of meters deep, but it was intact and the oil was still usable—this part was probably science fiction. Anyway, in the end, the young male protagonist held his breath for more than ten minutes before finally diving back to the shore to be rescued. Strangely, even the most experienced veterans died in the cave, some drowning, some falling to their deaths; moreover, two were severely injured and on the verge of death, yet they needed help to drown. This is so bizarre! A couple more minutes of squatting would have been fatal; why make it so tragic and sentimental? With such severe injuries, a simple press on their chest or heart area would have been enough; why drag them into the water to drown them?

Anyway, as soon as the movie started, my sister-in-law pulled the armrest between us to the back, then sat next to me, burying her head in my chest. Our seats were at the very back, against the far right wall. There were no people sitting next to us, but a couple two seats away, and they were also seated. The two rows in front of me and the row to my right were occupied; that's roughly how the seating arrangement was described.

As the movie progressed, my sister-in-law seemed less interested in the plot, constantly feeding me popcorn and drinks. This movie truly felt like a romantic experience. Suddenly, my sister-in-law pulled out the coat she'd brought and covered us both—or rather, my lower body and her chest and below. I was about to ask if she was cold when she pouted and kissed me, then reached under my t-shirt and touched my chest. I stared at her in surprise, my erection instantly becoming raging.

"Oh, brother-in-law, how did you react so quickly! That's so exciting!" my sister-in-law whispered in my ear, her two firm breasts brushing against my arm through the thin dress.

"Xiaojuan…you have a great figure too, better than your sister's. I wish I'd known…" I tried to tease her.

"Uh…brother-in-law, we…we're just being a couple for one day, you can't talk about my sister like that, and you can't think about anything like that. Hehe." She teased me playfully.

My mind was racing, completely wildly imagining things. In this dark movie theater, at this dangerous peak, who could resist lust? I kissed her, and she responded passionately, our tongues entwined, our teeth clashing; our hearts pounded wildly. Finally, I touched her breasts with one hand, and with the other, I reached behind her and touched downwards; wow! How wet she was! It was truly "earth-shattering"!

"Xiaojuan... how come you're so wet? You're so lewd!" I teased softly.

"It's raining, of course water will get in, it's no wonder I'm wet!" my sister-in-law complained, sounding like she was describing a scene from a movie.

She then chuckled lewdly. Just as I was getting into my thoughts, she pulled her legs up and pulled down her pants. Luckily, the movie theater was dark, so probably no one saw. Wait a minute; the couple sitting next to us seemed to notice. I looked at the woman, and she seemed to be saying something to her partner, then they kissed passionately.

My sister-in-law stuffed her soaking wet shorts onto my lap, allowing my hand to freely penetrate and caress her vulva. She moaned softly, looking on with obvious enjoyment. Then, quite easily, she pulled down my pants, glanced around, quickly grasped my erection, swung it a few times, and then thrust it into her mouth, sucking and licking it.

My sister-in-law writhed, enjoying my caresses, and I reciprocated her sucking. I glanced at the couple next to us; they weren't lagging behind, engaging in similar playful acts. The woman was sitting further away from us, so I could vaguely see her sucking. The man's penis wasn't large, and several times the woman's entire head was pressed against his groin. I wanted to give her a comparison, so I deliberately slid forward, letting her jacket fall halfway down, allowing them to see my sister-in-law's buttocks, while my enormous penis, being sucked, provided a perfect opportunity for the woman to compare and observe.

Perhaps the scene was too stimulating, because the man, staring at his sister-in-law's buttocks, ejaculated within seconds. It came so suddenly that he sprayed the woman's face. The woman, flustered, wiped her face with tissues and lightly slapped the man a few times. He looked helpless, while I found it amusing.

The sister-in-law also saw the scene, glared at me with a smile, pulled up her coat, and started sucking again, her hands moving faster and more rapidly. Just like that day, she left a trail of vaginal fluid on the chair and the floor. She paused for a moment, I think she had reached her climax, and then she made me ejaculate even faster. I no longer held back and ejaculated freely into her mouth, which she swallowed entirely.

We rested for a while, and she took out a skirt from her bag, a thin short skirt that only reached above her knees, and put it on. I had already put my penis back in its place. She asked me why I didn't insert it there. I was surprised, but I said that the place was too narrow, making it difficult to stretch and contract. It was tense and had a lingering aftertaste, but the pleasure and enjoyment were far from enough. Why not find a good place and go all out? That's real sex! She asked if a park was okay, and I said I wanted a nice one. It's mostly because of the tension; I can't really let loose. She asked if our yard was okay. I tapped her on the head, scolding her for being clueless. She said, "Then why am I masturbating there?" I was speechless. This is something she'll probably talk about for the rest of her life. I need to be careful with my kids, making sure they don't get too close to this woman, lest their young minds be corrupted and it damage my authority, haha.

After the movie, I took her to the restaurant we'd booked. On the way, I was thinking about how to interrogate my wife about the photos. When we got to the restaurant, it was less crowded, so we didn't have to queue. My sister-in-law and I weren't greedy; we took some seafood, then cooked dishes, etc., trying everything. Before we even thought about dessert, I needed to relieve myself; I can't go too long without peeing. After telling my sister-in-law, I went straight to the toilet. I turned back and smiled at her, saying I'd let her go when I got back. She gave me a victory sign with two fingers, grinning lewdly, I don't know what she was thinking.

Once inside, I looked around; no one was there. I easily pulled down my pants, finally able to pee. Just as I was about to pee, a figure flashed past behind me—please note; this is erotic fiction, not supernatural fiction—please don't misunderstand. I turned around and saw my sister-in-law. She hurriedly grabbed my clothes and shoved me into a side stall. I was terrified! What was going on? This was a dining room!

Once inside, she quickly locked the door, panting and smiling at me, gesturing for me to be quiet. I frowned, wondering what she was up to.

"Brother-in-law, are you done peeing?" she said—the following was all in a breathy voice. "Not yet, I hadn't even peed before you dragged me in!" I said.

"Then pee now, hehe!" My sister-in-law said, pulling my pants down to my knees and holding my bottom as if to help me pee.

"Ouch... I can't pee like this," I said.

"Hurry up... I've never seen a boy pee before. Be good..." she coaxed softly.

I took a deep breath, suppressed my emotions, and then peed out with a gurgling sound. She seemed to be holding the hose, gently moving it to help me pee, she really loved to play. After I finished peeing, she took it in her mouth, sucked on my penis, and spat it out, saying it was so salty. I laughed at her, no wonder it was salty after I just peed.

Then she showed me a position where we switched places, and I stared wide-eyed.

"Ouch... didn't you just say you'd pee and then I'd take over? Now it's my turn." She grinned lewdly.

"How are you going to pee? It's so narrow here..." I asked.

"It's okay, you stand a little further back, I'll straddle the toilet, and that'll be fine." She said and did just that.

"Brother-in-law, have you ever seen a girl pee? Have you ever seen my sister pee?" she asked me, turning around.

"Um...no...no...no...your sister won't let me see," I replied.

"Then you should look carefully. I'll bend over a bit and stick my butt out a bit, you should be able to see clearly, but it might spray you, so you should prepare some toilet paper, just in case," she said.

As she spoke, she started to pee in a strange and lewd position. At first, it was a stream of water, then it sprayed out. I held the toilet paper close to her vulva to block some of the urine, so it wouldn't actually spray me. At this moment, my huge penis got hard again, and I really wanted to insert it into her urine, but reason told me that I should appreciate it first before acting, that's the gentlemanly way.

After my sister-in-law finished peeing, I helped her wipe her vulva. I should remember this exciting and touching scene for the rest of my life. My sister-in-law didn't let me off the hook. She reached behind me and grabbed my huge penis, rubbing it against her vulva. Just as I was about to ask if it was wet enough, she pulled her buttocks back, and the entire head of my penis went into her vagina.

"Oh...it's so big, brother-in-law, I didn't know yours was this big...no wonder...sister, it feels so good!" she exclaimed.

"You just found out...your sister said your father-in-law's is bigger than mine." I tried to go in deeper. "

Mmm...ah...a little gentler...oh...slower...slower...brother-in-law, slower...oh...mmm, my dad's seems really big!" she answered while moaning.

"More than your boyfriend?" I asked.

"Oh, I don't have a boyfriend...oh...mmm...mmm...good. Good...oh..." she cried.

"Then you...you...you are...a virgin!" I exclaimed in surprise!

"Mmm...in high school, I...masturbated with a female classmate...oh...good...good...oh...does...this...count...not...count...ah...!" she said.

“It’s…thick…so good…ah…so good…your sister…used to…have…several…boyfriends…! It’s…you still…give…me…good…” I cried out.

“Mmm…brother-in-law…good…good…do…me…this…virgin…sister-in-law…not enough…do…do…all…make…me…be…your…little…wife…!” she moaned lewdly.

I thrust into her vagina with all my might, fast and forceful, each stroke drawing out a little fluid. She moaned softly.

Just as I was thrusting hard, someone came in. We paused briefly, our genitals still joined. It was a mother and son! The child didn't want to urinate outside and insisted on going into the toilet stall. The mother couldn't persuade him otherwise, so she took him in and locked the door.

"You've been injured for so long, and you still can't walk! Will your classmates look down on you at school?" the mother complained.

"At school, people help me in too, Mom, you don't need to come in, you can go out!" the child complained back.

"This is the men's restroom. You can't come in alone, that's why I helped you in. If you make Mom wait outside, how are the others supposed to use the toilet?" the mother said again.

"Why not? It won't do anything," the child complained.

“Oh dear…you little kid don’t understand. Next time you ask your dad to come to dinner with you, I won’t come. You’re just causing me trouble.” Mom was angry.

“There aren’t many people here, it’s okay…there are even more people at our university…Lily still peed with me…it wasn’t intentional…” the child said to his mother.

“Fine, fine, I can’t do anything with you, hurry up and pee.” Mom urged, then the sound of a belt being unbuckled could be heard.

“Mom…I’ll take it off myself.” the boy said.

“I’ll help you, don’t talk anymore, hurry up and pee. Oh…Xiao Zheng…you’ve grown up…you’re developing.” Mom said.

“What development? Does it mean my penis is getting bigger? Mom…my penis is the biggest in the whole class!” the child said.

“Hehe…silly child…what’s the use of being big? Study hard.” Mom said.

“My classmates all say big is good, you sleep at night, you touch Daddy’s penis and say it’s so big.” the child said innocently.

“…Who told you to look around…who told you to look around…” she said, giggling. From their exposed feet, it was clear they were playing around; the mother and son had a very close relationship.

“Oh, Mom…don’t keep grabbing my little bird…look, it’s gotten so big, I won’t be able to pee.” the child said, and the mother continued to laugh.

Then, the sound of urination was heard. The boy urinated for a long time, and I didn’t move. But then my sister-in-law started wiggling her buttocks again, and the sounds of slapping and squeaking flesh rubbing together rang out again. I looked at my sister-in-law; she was licking her tongue with a lewd grin. What was she up to now? They were right next door.

“Mom…next door…it sounds like there are people. There are two of them…” the child stopped urinating and said in a low voice.

“Mmm…you…you pee…hurry up.” The mother’s voice seemed to tremble, with nervous tremors.

“Mom…what’s that sound?” the boy asked while continuing to urinate.

“Don’t worry about it…hurry…hurry…pee now…” the mother said.

"Mom... I'm done peeing..." The child finally finished urinating.

"Wait... wait... Mom needs to pee too." Hearing the sound of clothes being taken off.

"Mom... why did you take your skirt off?" the child asked.

"Come... come to Mom... oh..." the mother said, sitting on the toilet.

"Mom... why are you digging there? Does it hurt? Can't you pee?" the child asked.

"Mom... what are you... doing? Don't do it here, Mom... don't pinch my penis... it hurts... it's so uncomfortable." the child said again.

"Mmm... um... oh... come... come to Mom here... Mom... will make you... soft..." the mother said again.

"Oh Mom... why are you sucking on me here... oh... it feels so good..." the child cried out.

Then, we saw the feet next door. The mother turned around, her back to her son, and then we heard slapping sounds. The child must have started making love with his mother. I could feel my sister-in-law's vaginal fluids surging, like a giant wave crashing up. I increased my thrusting speed; this time it was deep and long.

“Oh…oh…I’m…coming…coming…Xiao…Zheng…give…Mom…okay…oh…ah…”

“Brother-in-law…brother…you…are…so…good…so…good…I…am…going…to…come…I’m…going…to…come…ah.”

The women in both bathrooms seemed to have reached orgasm, shouting so loudly that I also ejaculated instantly. This scene was beyond description.

“Xiao Zheng…did you cum?” Mom asked.

“Mmm…Mom…you…are so slutty…how could I not cum?…Oh…Mom…why are you sucking my penis again?” the child cried, while Mom cleaned up her son’s things.

“You cummed all inside? Next time you have to tell me first! And you’re not allowed to watch me and your dad having sex again, or I won’t give you pocket money.” Mom said.

“Mmm…okay…I’m taking Lily home, you and Dad were peeking at us too.” the child said.

"Hmph... I was just worried about you, afraid you wouldn't know how and might hurt yourselves if you did it wrong," Mom said, having already dressed her son, and then stood up to put on her underwear and skirt.

"Let's go! Let's go out. What happened today—you can't tell your dad! It'll kill him," Mom added.

"Mmm... I know. But... Mom, your vagina is so tight and wet, it feels much better than with Lily," the son said.

"Stop praising me like that. I'm your mother. Your skills are just like your father's. I could easily deal with you two," Mom said in a slightly raised voice.

The door opened, and we almost came out together. They were unintentional, but my sister-in-law and I were doing it on purpose, wanting to see what kind of mother and son they were. As expected, the mother looked elegant and dignified, with fair and radiant skin, wearing a blue pencil skirt suit, and looked no more than 50 years old. The son was also quite something, with his hand in a cast. They seemed to come from a wealthy family.

That mother; perhaps because everyone was doing such sordid things, she wasn't particularly frightened when she saw us, but rather calm and composed, her expression as if we were the adulterers. That's true, when you're out having fun, don't be afraid of anything unnecessary, just adjust yourself, don't overthink it.

While having snacks at the restaurant, my sister-in-law and I kept glancing at the table of that mother and son. There sat a family there, three generations together, about ten people. The family seemed harmonious, without a trace of anything amiss. The child's father looked honest and kind, like a businessman, while the boy and his mother seemed particularly affectionate. I wondered if it was because they had just finished "that" and their relationship had deepened, or if they were already very close? On the way home, my sister-in-law and I had a lot to discuss, but ultimately it was none of our business, just something to chat about over tea. It

was already past ten o'clock at night when we got home. When I parked the car, my sister-in-law had already opened the door, and we went in together. However, the house seemed empty except for my mother-in-law's room, where a pale light shone through. My sister-in-law smiled at me with pursed lips, but then pulled me towards the window. After only a few steps, not far from the window, my sister-in-law and I both heard lewd laughter and spitting sounds. We looked at each other, and she bent down one after the other to watch closely.

"Strange, don't my parents-in-law always do it in the morning?" I whispered.

"Hmm...maybe Mom and Dad are in a good mood today! But it's never happened before!" my sister-in-law said with a laugh, her voice trembling slightly, probably thinking of her father's large penis.

"Want to go see?" I asked.

"Mmm... let's go..." My sister-in-law said, then pulled me along, tiptoeing to the window. We bent down and peered inside.

The scene inside almost made my heart stop. It turned out that while my sister-in-law and I were having our affair, my wife had already planned a naked sex party with her parents.

Looking through the window, we saw my mother-in-law half-reclining on the edge of the bed, my wife kneeling and licking her vulva, while my father-in-law was licking his daughter's vulva from behind. Both my mother-in-law and wife were simultaneously emitting lewd moans. The lewd and stimulating scene stunned my sister-in-law and me, and it took us a while to recover. My penis was already hard, throbbing against my sister-in-law's buttocks. My sister-in-law turned around and gave me a lewd smile, her hand stroking my thick, erect penis.

"Brother-in-law... are you... alright? Hehe..." My sister-in-law laughed, taking off all her clothes, one hand supporting herself against the wall, looking at me with obvious impatience. I quickly took off my clothes too, one hand touching my sister-in-law's breasts, the other holding her buttocks, and then touching her overflowing vulva.

Inside the window, there were continuous lewd moans, and outside, the chirping of insects continued. Under the window; I plunged my huge penis deep into my sister-in-law's vagina, and the wonderful symphony of lewdness rose and fell, lingering endlessly.

As for the matter of my wife's photos, I'll interrogate her about it after tonight's enjoyment.

[The End]

(Part 1)

When my wife and I were newly married, we lived at my wife's parents' house because of our work. Her house was large; it was a general's residence in the military dependents' village, with a small courtyard that encompassed the entire second floor. The first floor had a living room, kitchen, a Japanese-style room, and my parents-in-law's room. My wife and I had our room on the second floor, as did my sister-in-law. She was a sophomore in college that year, and she used the Japanese-style room downstairs almost exclusively. The second floor also housed my father-in-law's study. My father-in-law was fifty-five years old, a retired general. After his discharge, his company required frequent business trips and social engagements. Whenever he was home, I would drive him home two or three days a week from his social engagements. My mother-in-law was forty-eight, a housekeeper; a typical military dependents' village lady who often played mahjong.

My wife and I had both recently graduated from university and worked for nearby companies.

When my sister-in-law wasn't home, I would use her Japanese-style room for work, because my father-in-law's study was always locked. My wife also told me not to go in there. I asked her why, and she said maybe there were some secrets, but it was best not to go in. I followed that rule.

One morning in July, after arriving at the office, I discovered that the entire case file I had worked on the night before was at my home in the Japanese-style room. I initially wanted to go home immediately to retrieve it, but the office was too busy that morning. I considered asking my sister-in-law, who was on summer vacation, to bring it to me, but her phone was switched off. Around 2 PM, I decided to go back myself to get it before leaving work.

I opened the silent front door and entered the quiet yard, only to realize I hadn't brought my house key. I usually use the key hidden in a pot on the outside of the front door. With no other option, I went around to the backyard to see if my mother-in-law had forgotten to close the back door after going out to play mahjong. As I walked along the path by the window outside my mother-in-law's room, I heard a series of moaning sounds, "Mmm... Ee... Ee." I froze. My mother-in-law should be at the mahjong table; no one should be home! Could it be my sister-in-law? No wonder her phone wasn't being answered.

My sister-in-law is young and beautiful, and also my dream girl. Judging from those lewd sounds, they must be the moans of a woman masturbating. In a split second, I decided to eavesdrop and take a peek, not wanting to disturb my lewd sister-in-law. I slowly approached the window of my mother-in-law's room. The courtyard wall was high, and trees taller than the wall surrounded the area, blocking the view from the outside. Moreover, the trees also provided excellent soundproofing. I crouched down and peeked into the window; the curtains weren't fully drawn, a habit of Yuefu and her parents.

The room was a bit dark, and there was a screen on the outside, so I couldn't see clearly at first. But when my eyes adjusted to the darkness, I took a closer look; "Wow! My heart almost jumped out of my mouth—" The person inside is my mother-in-law!" My heart was pounding wildly. My mother-in-law was middle-aged, with fair skin, and looked very young. Normally, she's the epitome of a dignified and virtuous official's wife. Even I, her son-in-law, suffered quite a bit from her advances before marrying her. I never expected her to display such a lewd side before me today.

My father-in-law was discharged early from the military, receiving a generous monthly pension. His current company offers excellent benefits, and his years of military service have given him good physical condition. Why would my mother-in-law need to masturbate? Is she some kind of insatiable lustful woman? But my parents are usually very loving; I can't see any signs of this, and I can't figure it out.

The sounds of lewd moans continued to emanate from inside. Although it was a one-woman show, it made my blood pressure soar, my penis erect, and my eyes fixed on it. My mother-in-law's vagina was already soaking wet. She reached around her buttocks with one hand, digging into her vulva, while the other hand held a vibrator, constantly stimulating her clitoris. The moans and groans from my mother-in-law, along with the buzzing of the vibrator and the wet sounds of her fingers digging into her vagina, created a symphony of lewd pleasure.

The sight, the sound, and the connection between my mother-in-law and my in-laws stirred a storm within me, making me feel an irrepressible urge to release. I pulled out my "big gun" and, following my mother-in-law's rhythm, forcefully swung my raging member.

"Ee...ee...um...um...um...oh...ah!" As my mother-in-law's lewd moans abruptly stopped, I ejaculated, leaving patches of semen on the wall and the grass. My mother-in-law and I, separated by a wall and window, were both panting heavily. The scene was so stimulating that I felt dizzy.

"Hey...brother-in-law, why are you standing there? Why don't you come inside?" Oh no

; just as I was about to faint from pleasure, I heard my sister-in-law calling me. In an instant, I fell from heaven to hell.

I thought to myself: Why didn't I go in? Because I forgot my keys, and when you didn't answer my phone, I came back to get something. I happened to see your mother, my mother-in-law, masturbating. I'm such a dutiful daughter, how could I disturb her! Damn it! And another thing; didn't you see I was peeping at your mom masturbating? ...Thinking about this; no, the front door usually opens silently, so... did my sister-in-law see me peeping inside...? What should I do! Most importantly—my penis isn't back in my pants yet, I must look lewd and incredibly embarrassed!

"Oh... I came back to get the document I finished working on yesterday, I didn't bring the house key, so I thought..."

Seeing my sister-in-law walking towards me, I nervously turned to face the wall, quickly putting away my penis, but it was too stimulating, plus my sister-in-law... was only wearing a nearly transparent top, almost revealing her sexy underwear, and her shorts were so short they almost reached her thighs, so the continuous stimulation made my pants still bulge high, showing no signs of abating.

"Huh? Brother-in-law... you also know there's a house key hidden here... I didn't know! Did Mom tell you?" My sister-in-law walked over to me, smiled, and squatted down, reaching under the potted plant by the wall under the windowsill, and sure enough, she pulled out a key.

"Huh...? Brother-in-law, what's this?... Ouch... You have some on your pants too... It's so smelly and sticky..." Oh

no, I just ejaculated all over the wall and floor, and now my pants are stained too. My sister-in-law saw it and even helped me wipe the semen off. It was on my knees. As she wiped, she looked up at me and spoke, looking like she was cleaning up after giving me oral sex. Damn! This made my penis throb again, bouncing up and down in my pants. My sister-in-law isn't a child. When she looked up and saw this, after all, he was her brother-in-law. She, in her early teens, blushed to her neck and stood up, too shy to say a word.

At that moment, I glanced out the window. My mother-in-law was no longer in the room; she'd probably gone to shower. My sister-in-law followed my gaze, seemingly understanding something. She blushed, glared at me, and then lightly tugged at my shoulder.

“Brother-in-law…how could you do this…it’s so annoying…” she said to me in a very soft voice. I think she must have seen a lot since she came in, maybe she saw the whole thing.

“Um…Xiaojuan…wait, Xiaohan (my wife), she…you…” I stammered, trying to get her to stop telling anyone.

“Mmm…I know, all you guys are like this, you just like to peek at things!”

she said knowingly.

“Just now it was my mom…that, right?” she asked again.

“Which…what that?” I knew this college student had a strong thirst for knowledge, I wanted to slowly enlighten her. (Haha)

“Stop it…don’t pretend, I’m going to tell my mom right now…brother-in-law, are you going to tell her or not!” she tugged at my shirt sleeve, half-whining.

“Oh…you’re a kid, you don’t understand, don’t ask.” I deliberately pushed her away. Then; my sister-in-law immediately pretended to leave to tell on me.

“Okay…okay, I’m scared of you, but you can’t tell anyone, it’s a secret.” After I finished speaking, my sister-in-law nodded.

"I know, Mom was just... was... masturbating... right?" My sister-in-law unexpectedly leaned close and whispered these words to me.

"Yeah... yeah! How did you know?" I replied irritably.

"Hehe, brother-in-law, I've been in here for a while. As soon as I came in, I saw you by the window... that... oh, that!" My sister-in-law explained herself; sure enough, she had seen it all.

"What about me? What's wrong with you seeing me?" I wanted to tease her.

"Hehe... it's... it's just... it's just masturbating. I saw it all—this is your... your... semen... oh... how annoying!" My sister-in-law leaned closer and closer to me, her voice getting softer and softer.

While speaking, she showed me the semen that had been wiped from my pants and was still wet on her hand.

"Yeah... yeah... yeah." I felt like a child who had done something wrong.

"It's really sticky, but not as fishy as I imagined. Okay... brother-in-law, I won't tell anyone, but you owe me one." She smelled the semen on her hand while wiping it with a tissue, then put the tissue in her bag.

"What do I owe you? What do you want? Don't be too outrageous, you know your sister is very tight-lipped about money!" I wanted to know the price of extortion.

"Hehe, don't worry, I won't go too far. I just want you to treat me to a movie, then to a five-star restaurant buffet, and also, tell me what happened just now, that's all!" My sister-in-law rattled off a string of conditions. They weren't too demanding, and I should be able to do them. The only difficult part was telling me what happened just now, because the main character was my mother-in-law's mother! It was a bit hard to strike the right balance.

"Brother-in-law, you can't go back on your word, I have proof now, don't forget!" she warned me again.

After saying that, she pulled me towards the door, but unexpectedly, my mother-in-law came out from the back door...

"Mom...!" my sister-in-law and I greeted her together.

"What are you two doing here? Come in, Asheng... why are you off work so early today? Uh... what is this stuff? It's all over my flowerpots, so sticky, and the smell is so weird... and on the floor too... this..."

My mother-in-law rattled off a string of words, then noticed the mess I had just made. She bent down and looked at the semen all over the floor, then her face turned red and white. She looked into the window, then at me, and glared at her daughter. My sister-in-law and I both turned ashen-faced. I

was dead... caught red-handed, with witnesses. I was so scared that I went limp, silently waiting for the severe accusations. It's over... everything is over. Lust is a double-edged sword.

"Asheng... you didn't bring your keys. Didn't I tell you there was something hidden here? Are you feeling unwell? Why didn't you go see a doctor first?" My mother-in-law finally asked me, her face as red as a turkey's.

Hmm... As expected, my mother-in-law guessed it too, but she helped me cover up the lie, obviously not wanting to expose me, perhaps also to save face.

"Brother-in-law forgot something at home and has to come back for it! He can't find the key! I told him!"

My sister-in-law was really helpful. I laughed it off.

"Hmm... Honey... why don't you go in and get your brother-in-law a cold drink? It's so hot, and he has to go back to the company later. Go quickly. Your brother-in-law and I will find a new place to hide the key so he won't forget it again next time. Let her find a place that's easy to remember." My mother-in-law, her face flushed, looked at the semen splattered everywhere and sent her daughter away. She bent down as if searching for something. Just then, my sister-in-law and I saw my mother-in-law's loose top, revealing her proud breasts; she wasn't wearing a bra yet... My penis instantly became erect again, changing rapidly.

After agreeing, my sister-in-law walked towards the front door. Before leaving, she winked at me and lightly punched my stomach with her hand. She also noticed my change.

After my sister-in-law left, my mother-in-law looked up at me, her face flushing again.

"You've been back for a while?...Um...Were you looking for...the keys here?" she asked, straightening up. She also noticed the bulge in my pants and blushed again.

"Yes...yes...Mom...I was looking for the keys!" I answered guiltily, looking at the bulge in my pants, with nothing to cover it, feeling extremely embarrassed.

"You...didn't see anything, did you?...Don't...don't do things that are bad for your health. Has Xiaohan been ignoring you lately?"

My mother-in-law was clever; she immediately guessed what was going on. She wanted to confirm but was shy, and wanted to protect her pride. This shy look was really alluring! My wife wasn't ignoring me, Mother-in-law, you've forgotten, we're newlyweds!

Every night is filled with passion, how wonderful! It's just that I happened to witness your lewd and exhilarating scene, and if I didn't ejaculate, I'd be abnormal, and your daughter, my wife, wouldn't be happy either.

"Mom... I didn't see... I..." I stammered.

"Hey... Don't say that! Do you think your mother is a three-year-old? You're healthy and strong, that's why I can hold my grandson. You're all grown up now. I don't blame you, but... but... let's leave it at that for today. Don't tell your wife, and that little brat, Juanjuan, she's got so many problems. Just keep her in check, understand?" My mother-in-law's imposing manner remained unchanged.

"I know... Mom, I... I won't..." I was interrupted before I could finish.

"Alright... alright... go inside first. I'll go water the flowerpots and lawn. Your dad will be back later, he always takes this route."

"Mom... I'll get you the hose."

"Hmm... okay..."

It turned out my mother-in-law had thought things through carefully, not forgetting to help me cover up the evidence. After saying that, she walked over to me, gave me a disapproving look, then looked at my bulge, and suddenly smiled coquettishly, covering her mouth. I went with her to get the hose. I had to clean up my own mess.

As I approached the water tap, I was about to bend down and grab the hose when my mother-in-law bent down first. With that, her entire wrist (she was wearing a short-sleeved shirt) landed on my erect penis, and I once again saw her bare breasts.

Because my body was bent over, her wrist and wrist were now trapped between my hips; any movement would cause my penis to throb even more forcefully. I was stunned by this scene, unsure whether to move forward or backward. I held on for a moment, and then I noticed my mother-in-law seemed to be slightly moving her arm, not trying to move away, but wanting to touch me more firmly.

"Um… Ah Sheng… help me put the hose on, I… I… I'm going to water the garden," my mother-in-law's voice was barely audible, and trembled slightly.

"Oh... I'll do it." Seeing that my mother-in-law's hand wasn't going to leave, I took the hose from her and slowly pulled it up, preparing to catch the water from the tap.

As I pulled it up, I let my mother-in-law's arm move up and down slowly, not a large range, but definitely enough for her to feel my heat and hardness. I was still staring at my mother-in-law's breasts, and now her nipples were erect. I guessed that my mother-in-law's vagina was probably already overflowing with wetness. I had a strong urge to have my mother-in-law immediately hold my big, thick penis and help me masturbate...

"Mom... it's ready..." My voice trembled.

"Oh... I'll water the flowers... Oh... it's so hard... it's killing me..." When my mother-in-law picked up the hose, she touched my raging penis with the back of her hand. Even through my pants, I was so excited that I wanted to ejaculate immediately!

Later, I went into the living room. My sister-in-law had already gone upstairs, and there was a refreshing juice on the table. I drank it down in one gulp, and it immediately cooled down. Today was so exciting! When my wife came home tonight, I couldn't wait a second longer. I wanted to have sex as soon as I got into the room, but she said she was tired and wanted to wait until bedtime. Oh well, I had to wait. (

Mother-in-law's vibrator - middle)

Finally, it was evening. My father-in-law was probably still in the study, and my sister-in-law had gone to bed early. As usual, it was time for sex. I impatiently stripped my wife of all her clothes—actually, she was only wearing underwear. My eyes were practically shooting fire, and my movements were swift and decisive.

"Hey...wait a minute...honey...why are you so excited today? Oh...your dick...how did it get so hard all of a sudden!" my wife said with a lewd smile.

All afternoon, your mother and your sister had me burning with desire. How could I not be excited? I hadn't had a proper release all day, so how could I not tease you to my heart's content?

My parents-in-law were very happy when they heard we were staying at their house temporarily. They dote on their daughter, and by extension, they dote on me too. They specially decorated our room, spending a lot of money on soundproofing such as double-glazed windows and sound-absorbing walls, all so we could enjoy our lovemaking anytime without worrying about disturbing the family.

Given what happened this afternoon, I actually made a special arrangement today: we deliberately left our door ajar, and the French windows on the balcony (which connects to my sister-in-law's room) ajar. This way, I believe my parents-in-law and sister-in-law can witness our intimacy. As for my father-in-law, I want to remind him he still needs to do his homework. As for my mother-in-law, it's to give her a real look—my big penis isn't just for show. As for my sister-in-law… I just want her to know that I can be quite "fierce" too, so she shouldn't underestimate me.

“Oh…ss…ee…oh…mmm…mmm…husband…so hard…hard…oh…so…good…”

“Oh…I…am…my…wife…you…today…so…wet…so…hot.oh…” “

Mmm…mmm…today…we…want…to…last…longer…oh…husband…”

“Mmm…I’ll…fuck…you…little…slut…to…death…”

Just as we were getting really into it, I kept glancing around. My wife’s moans were always very unrestrained.

If I didn’t stop her or remind her, the whole house could hear her! Today I was especially forceful, and with the interesting situation about to unfold around me, I thrust harder, and my wife’s moans and groans became even louder. I picked up the blindfold and covered my wife’s eyes. I told my wife that we were going to do something special today. My wife, wearing the blindfold, turned around and gave me a lewd smile—Wife; you’re going to be a little lewd today.

Finally… after a few minutes, I saw a shadow outside the door. I had my wife face the TV, lying down so I could attack from behind. This way, the doorway and the partially closed French windows offered a clear view of the room. We hadn't turned off the lights today; actually, we never turn them off when we make love.

My sister-in-law was already leaning against the French windows, quietly peeking. She even knew to turn off the balcony lights so she could watch without restraint, and because of the light difference, she could see everything clearly inside. And by the door? The key point is by the door. Was it my father-in-law or my mother-in-law peeking? If it was my mother-in-law, then my father-in-law wouldn't get to see; otherwise, it would be my mother-in-law's disappointment. Of course, if both of them could watch together, that would be the best outcome.

While I was thrusting into my wife's vagina, making her moan and groan, I kept an eye on the situation outside. I saw my sister-in-law, watching as she slipped her hand inside her bra, caressing her breasts. Gradually, she slipped her hand inside her panties, stroking her vulva. Suddenly, she took off all her underwear, lying naked on the balcony, writhing and masturbating, moaning softly and wantonly. I could hear her; I wondered if my wife could. At

the door, I saw a shadow. After a few minutes of observation, I was certain it was my father-in-law. No doubt, because through the crack in the door, I could see his study door was open, letting in a faint light. So I thrust harder, wanting to give him a more immersive and vivid experience, to repay his kindness, and hopefully indirectly benefit my mother-in-law as well. As time passed, my father-in-law couldn't resist any longer. I saw him slightly push the door open; now, I could almost see half his body, but I only used the corner of my eye to observe the movements outside. I caught a glimpse of my father-in-law. He was only wearing underwear—no… he'd taken it off completely, and through the underwear, he was gripping his enormous penis. Judging by the size, it was very large, thick, and impressive. Then, I deliberately turned my wife slightly towards the balcony so her father could see our genitals more clearly. I wanted to give my father-in-law a little treat, and also let the girl on the other side see my magnificent cock.

“Wife… let’s play a game of dad hitting daughter, okay?”

“Mmm… mmm… mmm… mmm… mmm… okay… husband. No… yes. Dad… Dad… Dad… don’t… hit… me… don’t… hit… daughter… oh…”

This was a game we often played. Because my wife’s father was very strict with them, he often mentioned it to me when we met. So, during sex, I would call her “dad” and spank her bottom. Often, when we did this, my wife would get inexplicably excited, becoming so wet that the sheets would soak like she was peeing. We called it a G-spot orgasm.

So my wife and I often played like this. Even after we got married and moved into her parents' house, we still often played like this.

"You're naughty... I'll spank you... today... Daddy... is going to... spank you... nicely... your... ass."

After saying that, my big dick left her cunt, still strong and erect. I stood in front of the TV so my sister-in-law could see my big cock clearly. When I pulled it out, a stream of vaginal fluid spurted out... wetting the sheets. I picked up the belt, bent it halfway, and gently spanked her ass while stroking her wet cunt with my other hand. I turned her body around, and now her cunt was completely exposed to her father-in-law's eyes. At this moment, my father-in-law had already taken off his pants. That thick, meaty cock was truly the size of a revolutionary soldier!

"Oh... oh... Dad... be gentle... daughter... will be good... good... don't... too hard... oh... umm..."

"No... you'll only be good if you're spanked... what is this... saying..." I slapped her ass... while touching her cunt. And I increased the force on her cunt.

“Oh…Dad…that’s…that’s…daughter…daughter’s…cunt…so…so…good…oh…”

“Why is there so much water…tell me…did you do something bad…hmm…”

“Oh…ah…Dad…Dad…no…it’s because…Dad…made…made…make…you wet…so much water…so…good…Dad…you…are so…good at…oh!”

“Is this good enough…ah…do you want Dad’s South Country…to teach you a lesson…Dad’s South Country is the great South Country of the revolutionary soldiers!”

“I want…I want…I want…Dad…your…stick…to…hit…your…bad…daughter…to…make…daughter…feel…good…good…to…die…ah…Dad…faster…faster…”

I glanced at the door and saw another person there, who had even hit my father-in-law. It was definitely my mother-in-law.

My father-in-law couldn’t take it anymore. Just as my mother-in-law was about to drag him downstairs, he grabbed her and quickly stripped her naked. As if in a show of force, he turned her to the side, held her against the doorframe, and rubbed his large penis against her entrance a few times before inserting it. I don’t know if my father-in-law knew that I could see what they were doing, but this action allowed my mother-in-law to see my naked body and her daughter’s lewd posture. As my father-in-law pulled away from behind, my mother-in-law's documents came into his line of sight. I, however, was staring directly at her. I gave her a lewd grin. She tried to look down, but my father-in-law held her down, preventing her from moving. Now, I was back at it again. I flipped

my wife over so she was lying on her back, and spread her legs wide, exposing her vagina to my mother-in-law. A moment later, I thrust in again. My wife immediately moaned, while my mother-in-law remained silent. I thrust into her while watching her wanton posture, thrusting harder and harder until my wife couldn't take it anymore and screamed. Hearing his daughter's moans, my father-in-law moved my mother-in-law so she faced the hallway, allowing him to watch our actions. But he pulled too hard, and the door opened even wider, two-thirds of the way open. I deliberately avoided looking at the hallway, but turned my head and saw my sister-in-law kneeling before the French windows, directly watching us, witnessing her parents' lovemaking. This is so exciting! My wife's whole family is here, watching and enjoying the lewd pleasure of making love. It's so wonderful.

"Oh... Dad... Dad... I'm coming... Oh... Faster... So good... I... I'm coming... Oh... Ah..." my wife cried out again.

"Oh... Husband... Gently... Gently... Ah... Oh... I'm coming too... Oh... Oh..." my mother-in-law even cried out, unable to hold back anymore. My father-in-law

remained silent, thrusting into my mother-in-law with all his might. That's how it is, true to his military spirit. My father-in-law rotated his position as he thrust, slightly closing the door. However, we could see their connection clearly from here, that is, we could see my mother-in-law's buttocks and my father-in-law's big penis going in and out.

My mother-in-law's scream startled my wife and me. My wife hesitated for a moment, then flipped up her blindfold, directly seeing the scene at the door. I was afraid that she would be too frightened and stop the sex, so I immediately grabbed her ankles, lifted her buttocks high, and then thrust even more widely. Sure enough, my wife screamed again, taking off her blindfold and throwing it on the ground, her eyes fixed on her parents' performance.

"Oh... Dad... Dad... Daughter... is coming... Oh... Faster... Good... So good... So good... Coming... Oh... Ah..." my wife screamed, then released a gush of vaginal fluid, which made my glans throb. With one last thrust, I ejaculated all of it into my wife's uterus.

"Oh... Husband... Ah... Mm... Ee-yo... Oh... I'm... Coming... Coming... Oh... Oh..."

my mother-in-law screamed wildly, then knelt down, a gush of fluid also gushing from her vagina, leaving a wet puddle on the ground. After my mother-in-law knelt down, my father-in-law grabbed his large penis and began to stroke it. Perhaps the movement was too big, because the door opened a little wider, and he almost looked at the three of us before ejaculating onto my mother-in-law's body with great force. I saw his two daughters open their mouths wide and gasp in surprise.

After a long pause, my father-in-law, as if nothing had happened, went into his study, while my mother-in-law got up to close the door for us.

"You...next time...when you're doing this, make sure the door is closed! Go to sleep early, don't play around." My mother-in-law, naked, swaying her large breasts, her pubic hair still a mess, closed the door after speaking.

My wife looked out the French windows; there was a puddle on the floor—her sister's wetness—and her sister was still leaning against the window! My wife glared at her, and her sister-in-law left with a sly look.

"Oh...damn it...husband...why didn't you lock the door...!" my wife scolded me.

"What! Didn't you always check?" I deliberately blamed her.

"Never mind, you have to be careful next time. But..." my wife said.

"But what, isn't it...exciting..." I teased.

"Hehe, it's not the first time I've seen it. When we were kids...well, even now we see it! They've been so affectionate since I was little, they never closed the door when they did it!" my wife said.

"Really? I didn't know that," I said.

"Yeah, because they all do it in the morning, and you sleep in late, so you don't get to see it," my wife said.

"Yeah, no wonder. But what were you about to say?" I asked.

"I was going to say that I've never seen Dad's penis so clearly before, it feels so big, bigger than yours, is that true?" my wife said.

"Maybe!" I said.

"Being penetrated by that guy from the south isn't necessarily very enjoyable! Hehe, my mom is really lucky," my wife said.

"So now, all you can think about is your dad's guy from the south!" I said.

"Haha... you just made me call you 'Dad' until I climaxed, and now you're jealous," my wife said.

Hearing her say that, my penis got hard again, throbbing against my wife. I saw her vagina, which was starting to gush with lustful fluid, and her nipples were erect again. My wife and I looked at each other for a few minutes, as if we understood something, and smiled at each other.

“My mom… she has a great figure, right? Big breasts, right?” my wife said.

“Mmm… that’s right, and she’s super wet!” I said.

“I know, you saw it this afternoon!” my wife said.

“How did you know!” I said in surprise.

“Hehe… my mom told me! My sister told me too! Hehe, you pervert.” my wife laughed.

“Okay! Since we’re both so excited now, let’s do it again. I’ll use my dad’s big dick, and you just think about my mom’s cunt. You’re not allowed to sleep until you’re exhausted.” my wife said with a lewd smile.

I turned my wife over to the door, made her hold onto the door frame, and, in the same position as her parents, I started thrusting wildly into her cunt again.

She put her hand on the doorknob, slowly… as the movements intensified, the door opened slightly again…

Mother-in-law’s Vibrating Egg (Part 2)

A week later, on Saturday, I kept my promise to my sister-in-law. My sister-in-law was very excited early in the morning, and her sister, my wife, wasn't surprised either. Given what had happened a few days ago, she knew something bad was going to happen, so she didn't give me any special advice and went shopping with her parents early in

the morning. We agreed to see a movie at 2 PM, and then I'd take her to the most famous five-star hotel in town for a buffet. If nothing unexpected happened, we'd go home. But looking at my sister-in-law's outfit—a short pink dress and super short mini-shorts—I figured she wouldn't let me off so easily .

When the time came, we got in the car and headed to the downtown cinema.

"Brother-in-law, you like these kinds of thrillers?" my sister-in-law asked happily as soon as we got in the car, clearly in a great mood.

"Ah...it's alright, actually I prefer action movies like Transformers and Avatar!" I started the car, shifted gears, and drove off in one smooth motion.

"So why did you book this one?" my sister-in-law asked curiously.

"Oh, your sister said you like this one, right? We can change it!" I said.

"Okay, don't change it, don't change it! ...That's not the point..." she said thoughtfully.

"Otherwise what? There's more to it... What's the important part?" I asked jokingly.

"Well... well... oh dear~ it's eating seafood, isn't it? And... and..." she stammered.

"And what else! Aren't we going home after dinner? Where else are we going?" I asked.

"...Oh, how annoying... You're not... you're not... going to tell me that, are you?" she said with a slight reproach.

"What do you mean 'that'? You've already seen it all, is there anything else you need to tell me? My dear second young lady!" I laughed at her.

"...Hehe... Yes, I've seen it, I just want... I want to hear you tell me what you saw that afternoon, the thing about being so excited you wanted to... that thing!" she explained.

"Oh... you brought that up again! I know, I'll tell you! Haha!" I laughed it off.

We arrived at the movie theater parking lot. Along the way, my sister-in-law asked all sorts of questions and played with my dashcam, saying it could be used as a camera. As soon as photography was mentioned, she immediately asked if I had brought a camera. I said yes, and she immediately took it out and started playing with it, taking pictures here and there. Then, she started checking my memory cards again, saying she wanted to see if there were any random photos taken, and that since my sister and I were playing so intensely, there must be a lot of unspeakable photos.

The camera was a gift from me to my wife, and she's the one who uses it most of the time; she almost never touches it. It's usually kept in her bag, and she takes it with her all the time. I don't know why she didn't take it today. Every time my sister-in-law looked at a photo, she praised my wife's photography skills, saying how beautiful the scenery was. When she saw photos of people, she asked if I recognized them, offering her opinions. Actually, most of them were my wife's colleagues, both men and women, including former classmates, seniors, and so on. I recognized some, but not most.

My sister-in-law rummaged through the bag, and I reminded her that my wife doesn't like people rummaging through her things, and I wouldn't be responsible if she messed things up; she could just go and get scolded. She stuck out her tongue, winked at me, and suddenly, she found a few memory cards in a small pouch at the bottom of the bag. My sister-in-law was overjoyed, like she'd struck gold. She started examining the images on the camera, while I ignored her and focused on driving. He looked at it intently, his expression turning strange. The kid was always asking questions, but I was relieved that he wasn't saying anything. We arrived at the parking lot.

"Brother-in-law, is this... camera yours?... Hmm?" After parking, just as I was about to turn off the engine and get out, my sister-in-law turned and looked up, her face serious.

"I bought it for your sister. I don't use it; your sister uses it all the time... Why...?" I asked.

"Oh... then... do you want to see it?" she asked seriously.

"See what? Just scenery or photos with his colleagues? Or maybe pictures of dogs and cats..." I said.

"Here... take a look... but... you have to complete today's itinerary... I don't care..." She took the camera.

"Xiaojuan, I... don't know how to operate it... you can show it to me." I said.

"How about we look at it in the back? That's better." she said. ...I thought that way, if someone walked by and saw us like this, it wouldn't be strange. Unable to persuade her otherwise, we moved to the back seat.

"Hmm...this is her senior...this is her colleague...this is..." I explained as I looked, identifying the people in the photos. My sister-in-law leaned her whole body against me.

"Then...we'll have to look further back." My sister-in-law gave me a playful look.

Wow! What?! One after another, photos of my wife dressed very provocatively appeared, one after another. The locations were at the company, scenic spots, schools, the suburbs...and so on, she was photographed everywhere. My wife was wearing underwear, pajamas, miniskirts, and most of her tops were semi-transparent. I had never seen any of those clothes before. My wife's poses were incredibly lewd. In front of my sister-in-law, I suddenly felt very embarrassed and ashamed.

"These...are all selfies, right? Do you think so?" I asked my sister-in-law to confirm. Perhaps wanting a clearer view, my sister-in-law leaned her whole body closer, her breathing rapid, her chest heaving, and she was already pressed against my chest and arm.

“I don’t think so. Look at this one, the distance is too far for a selfie… and this one too…” My sister-in-law explained, her voice trailing off. I looked at her face; it was already bright red. Of course, seeing her sister’s lewd photos was embarrassing; I felt embarrassed myself.

The more photos I looked at, the heavier my heart became, or rather, the angrier I got, because the following photos were increasingly unbearable. I saw photos of my wife completely naked, wearing only a bra, and only underwear. What angered me even more was a whole set of nude photos taken at school. Several of them showed my wife naked, leaning against the corridor railing, some with her back to me, some with her face turned towards me, and several children chatting downstairs (this is definitely not the fairy-like little slut of our college… she’s my goddess… not my wife!). What was my wife thinking?

My sister-in-law kept praising my wife’s figure, while I mumbled something. My sister-in-law continued to lean against me, practically straddling me. Noticing this, I actually had a physical reaction. My big gun was standing erect in my pants again, and my sister-in-law's hand, holding the camera, was being pressed against my big gun by my arm. After she noticed, she gave me a sly smile, and then used the inside of her bent arm to cover my raging gun and gently rub it.

"Your sister is so lewd, that makes you react so strongly... Brother-in-law." My sister-in-law's tone was full of provocation.

"No... it's not the photos... the photos only make me angry... oh... Xiaojuan, no... not here, okay..." I couldn't take it anymore, and the desire for revenge rose up. Whatever, I'll tease my sister-in-law if I get the chance.

"Brother-in-law, taking pictures like this, um... I've done it before, just not this crazy. But... I always take pictures with girls, because the guys usually pounce on me before we're done, and I'm exhausted and don't get many pictures. So I guess it's your female colleagues who took the pictures with you." My sister-in-law tried to explain for my wife, and I felt a little relieved.

A thought flashed through my mind. Wow… those are two beautiful women, acting so lewdly in the scene. But then I noticed my wife's vulva was a little red and swollen. Could it be that she was assaulted a few times, resulting in this messy state? Or maybe the two women were… Never mind; the more I thought about it, the more I realized, but my penis was getting harder and harder.

“Brother-in-law… are we still going to see the movie?… Hehe. It’s really dark in there.” My sister-in-law asked with a lewd smile.

Of course we’re going to see it. I got into the front seat, turned off the engine, locked the door, and took my sister-in-law’s hand. The two of us went into the electrical engineering department like a young couple.

The movie is called "The Cave," an adventure and extreme sports film. It's basically about exploring caves, one after another, with people dying and surviving, the survivors dying again, and the dead... of course, can't come back to life, but they inexplicably appear next to the survivors. Finally, there's a World War II tank that falls into a cave dozens of meters deep, perfectly intact, and the oil is still usable—this part is probably science fiction. Anyway, in the end, the young protagonist holds his breath for over ten minutes before finally diving back to the shore to be rescued. Strangely, many experienced veterans die in the caves—some drown, some fall to their deaths; and two of them are seriously injured and on the verge of death, yet they need help drowning. This is so strange! A couple more minutes of squatting would have been enough to kill them; why be so cruel and sentimental? With such severe injuries, a simple press on their chest or heart would have been enough to kill them; why drag them into the water to drown them?

Getting back to the point, as soon as the movie started, my sister-in-law pulled the armrest between us to the back, then sat next to me and buried her head in my chest. Our seats were at the very back, against the far right wall. There was no one sitting next to us, but there was a couple two seats away, and no one was sitting next to them either. There were people sitting in the two rows in front of me and the row to my right. That's roughly how the seating arrangement was.

As the movie progressed, my sister-in-law seemed completely oblivious to the plot, feeding me popcorn one minute and giving me a drink the next. The movie was truly romantic. Suddenly, she pulled out her coat and covered us both—or rather, my lower body and her chest and below. Just as I was about to ask if she was cold, she pouted and kissed me, then reached under my t-shirt and touched my chest. I stared at her in surprise, my erection instantly becoming raging.

"Oh, brother-in-law, how did you react so quickly! That's so exciting!" she whispered in my ear, her breasts brushing against my arm through her thin dress.

"Xiaojuan…you have a great figure too, better than your sister's. I wish I'd known…" I tried to tease her.

"Uh…brother-in-law, we…we're just being a couple for one day, you can't talk about my sister like that, and you can't think about anything else. Hehe." she teased, playfully scolding me.

My mind was racing, completely wildly imagining things. In this dark movie theater, at this dangerous peak, who could resist lust? I kissed her, and she responded passionately, our tongues entwined, our teeth clashing; our hearts pounded wildly. Finally, I touched her breasts with one hand, and with the other, I reached behind her and touched downwards; wow! How wet she was! It was truly "earth-shattering"!

"Xiaojuan... how come you're so wet? You're so lewd!" I teased softly.

"It's raining, of course water will get in, it's no wonder I'm wet!" my sister-in-law complained, sounding like she was describing a scene from a movie.

She then chuckled lewdly. Just as I was getting into my thoughts, she pulled her legs up and pulled down her pants. Luckily, the movie theater was dark, so probably no one saw. Wait a minute; the couple sitting next to us seemed to notice. I looked at the woman, and she seemed to be saying something to her partner, then they kissed passionately.

My sister-in-law stuffed her soaking wet shorts onto my lap, allowing my hand to freely penetrate and caress her vulva. She moaned softly, looking on with obvious enjoyment. Then, quite easily, she pulled down my pants, glanced around, quickly grasped my erection, swung it a few times, and then thrust it into her mouth, sucking and licking it.

My sister-in-law writhed, enjoying my caresses, and I reciprocated her sucking. I glanced at the couple next to us; they weren't lagging behind, engaging in similar playful acts. The woman was sitting further away from us, so I could vaguely see her sucking. The man's penis wasn't large, and several times the woman's entire head was pressed against his groin. I wanted to give her a comparison, so I deliberately slid forward, letting her jacket fall halfway down, allowing them to see my sister-in-law's buttocks, while my enormous penis, being sucked, provided a perfect opportunity for the woman to compare and observe.

Perhaps the scene was too stimulating, because the man, staring at his sister-in-law's buttocks, ejaculated within seconds. It came so suddenly that he sprayed the woman's face. The woman, flustered, wiped her face with tissues and lightly slapped the man a few times. He looked helpless, while I found it amusing.

The sister-in-law also saw the scene, glared at me with a smile, pulled up her coat, and started sucking again, her hands moving faster and more rapidly. Just like that day, she left a trail of vaginal fluid on the chair and the floor. She paused for a moment, I think she had reached her climax, and then she made me ejaculate even faster. I no longer held back and ejaculated freely into her mouth, which she swallowed entirely.

We rested for a while, and she took out a skirt from her bag, a thin short skirt that only reached above her knees, and put it on. I had already put my penis back in its place. She asked me why I didn't insert it there. I was surprised, but I said that the place was too narrow, making it difficult to stretch and contract. It was tense and had a lingering aftertaste, but the pleasure and enjoyment were far from enough. Why not find a good place and go all out? That's real sex! She asked if a park was okay, and I said I wanted a nice one. It's mostly because of the tension; I can't really let loose. She asked if our yard was okay. I tapped her on the head, scolding her for being clueless. She said, "Then why am I masturbating there?" I was speechless. This is something she'll probably talk about for the rest of her life. I need to be careful with my kids, making sure they don't get too close to this woman, lest their young minds be corrupted and it damage my authority, haha.

After the movie, I took her to the restaurant we'd booked. On the way, I was thinking about how to interrogate my wife about the photos. When we got to the restaurant, it was less crowded, so we didn't have to queue. My sister-in-law and I weren't greedy; we took some seafood, then cooked dishes, etc., trying everything. Before we even thought about dessert, I needed to relieve myself; I can't go too long without peeing. After telling my sister-in-law, I went straight to the toilet. I turned back and smiled at her, saying I'd let her go when I got back. She gave me a victory sign with two fingers, grinning lewdly, I don't know what she was thinking.

Once inside, I looked around; no one was there. I easily pulled down my pants, finally able to pee. Just as I was about to pee, a figure flashed past behind me—please note; this is erotic fiction, not supernatural fiction—please don't misunderstand. I turned around and saw my sister-in-law. She hurriedly grabbed my clothes and shoved me into a side stall. I was terrified! What was going on? This was a dining room!

Once inside, she quickly locked the door, panting and smiling at me, gesturing for me to be quiet. I frowned, wondering what she was up to.

"Brother-in-law, are you done peeing?" she said—the following was all in a breathy voice. "Not yet, I hadn't even peed before you dragged me in!" I said.

"Then pee now, hehe!" My sister-in-law said, pulling my pants down to my knees and holding my bottom as if to help me pee.

"Ouch... I can't pee like this," I said.

"Hurry up... I've never seen a boy pee before. Be good..." she coaxed softly.

I took a deep breath, suppressed my emotions, and then peed out with a gurgling sound. She seemed to be holding the hose, gently moving it to help me pee, she really loved to play. After I finished peeing, she took it in her mouth, sucked on my penis, and spat it out, saying it was so salty. I laughed at her, no wonder it was salty after I just peed.

Then she showed me a position where we switched places, and I stared wide-eyed.

"Ouch... didn't you just say you'd pee and then I'd take over? Now it's my turn." She grinned lewdly.

"How are you going to pee? It's so narrow here..." I asked.

"It's okay, you stand a little further back, I'll straddle the toilet, and that'll be fine." She said and did just that.

"Brother-in-law, have you ever seen a girl pee? Have you ever seen my sister pee?" she asked me, turning around.

"Um...no...no...no...your sister won't let me see," I replied.

"Then you should look carefully. I'll bend over a bit and stick my butt out a bit, you should be able to see clearly, but it might spray you, so you should prepare some toilet paper, just in case," she said.

As she spoke, she started to pee in a strange and lewd position. At first, it was a stream of water, then it sprayed out. I held the toilet paper close to her vulva to block some of the urine, so it wouldn't actually spray me. At this moment, my huge penis got hard again, and I really wanted to insert it into her urine, but reason told me that I should appreciate it first before acting, that's the gentlemanly way.

After my sister-in-law finished peeing, I helped her wipe her vulva. I should remember this exciting and touching scene for the rest of my life. My sister-in-law didn't let me off the hook. She reached behind me and grabbed my huge penis, rubbing it against her vulva. Just as I was about to ask if it was wet enough, she pulled her buttocks back, and the entire head of my penis went into her vagina.

"Oh...it's so big, brother-in-law, I never knew yours was this big...no wonder...sister, it feels so good!" she exclaimed.

"You just found out...your sister said your father-in-law's is bigger than mine." I tried to go in deeper.

"Mmm...ah...a little gentler...oh...slower...slower...brother-in-law, slower...oh...mmm, my dad's seems really big!" she moaned as she answered.

"More than your boyfriend's?" I asked.

“Oh, I don’t have a boyfriend… Oh… Mmm… Good. So good… Oh…” she cried out.

“Then you… you… you are… a virgin!” I exclaimed in surprise!

“Mmm… In high school, I masturbated with my female classmates… Oh… so good… Oh… Does this… count… or… does it count…?” she said.

“It counts… Yeah… so good… Ah… so good… Your sister… used to… have… several… boyfriends…! So… you’re giving… me… back… good…” I cried out.

“Mmm… Brother-in-law… good… good… fuck… me… this… virgin… sister-in-law… not enough… fuck me back… let… me… be… your… little… wife…!” she moaned lewdly.

I thrust into her vagina with all my might, fast and hard, each thrust drawing out a little fluid from her vagina. She moaned softly.

Just as we were sprinting, someone came in. We paused briefly, our genitals still joined. It was a mother and son! The child didn't want to pee outside and insisted on going into the stall. The mother couldn't persuade him otherwise, so she took him in and locked the door.

"You've been injured for so long, and you still can't walk! Do you think your classmates will look down on you at school?" the mother complained.

"At school, people help me in too, Mom, you don't need to come in, just go out!" the child complained back.

"This is the men's restroom. You can't come in alone, that's why I helped you in. If you make Mom wait outside, how are other people supposed to use the toilet?" the mother said again.

"Why not? It won't cause any problems," the child complained.

"Oh dear... you're just a kid, you don't understand. Next time, you can ask your dad to come with you to dinner, I'm not coming. You're just causing me trouble." the mother said angrily.

"There aren't many people here, it's okay... there are even more people at university... Lily still peed with me... it wasn't intentional..." the child told his mother.

"Okay, okay, I can't do anything with you, hurry up and pee," the mother urged, followed by the sound of a belt being unbuckled.

"Mom... I'll take it off myself," the boy said.

"I'll help you, don't talk anymore, hurry up and pee. Oh... Xiao Zheng... you've grown up... you've developed," the mother said.

"What development? Does it mean my penis is getting bigger? Mom... my penis is the biggest in the whole class!" the child said.

"Hehe... silly child... what's the use of being big? Study hard," the mother said.

"My classmates all say big is good, and when you sleep at night, you still touch Daddy's penis and say it's so big," the child said innocently.

"...Who told you to look like that... who told you to look like that..." she said, giggling. From their exposed feet, it was clear they were playing around, a truly loving mother and son.

"Oh, Mom... don't keep grabbing my penis... look, it's gotten so big, you won't be able to pee," the child said, while the mother continued to laugh.

Then, the sound of urination was heard. The boy urinated for a long time, and I didn't move. But my sister-in-law started wiggling her butt again, and the sounds of her vaginal muscles rubbing together, slapping and squeaking, rang out again. I looked at her; she was licking her tongue with a lewd grin. What trick was she playing now? They were right next door.

"Mom... next door... it sounds like someone's there. Two more..." the boy said, stopping his urination.

"Mmm... you... you pee... hurry up." The mother's voice seemed to tremble, with nervous tremors.

"Mom... what's that sound?" the boy asked while continuing to urinate.

"Don't worry about it... hurry... hurry... pee..." the mother said.

"Mom... I'm done peeing..." the boy finally finished.

"Wait... wait... Mom needs to pee too." I heard the sound of clothes being taken off.

"Mom... why did you take your skirt off?" the boy asked.

"Come... come in front of Mom... oh..." the mother said, sitting down on the toilet.

"Mom... why are you digging there? Does it hurt? Can't you pee?" the boy asked.

"Mom... what are you doing? Don't do it here, Mom... don't pinch my penis... it hurts... it hurts so much," the child said again.

"Mmm... um... oh... come... come to Mom... Mom... will make you... soft..." the mother said again.

"Oh Mom... why are you eating me here with your mouth... oh... it feels so good..." the child cried out.

Then, we saw the feet next door. The mother turned around, her back to her son, and then we heard slapping sounds. The child must have started making love with his mother. I could feel my sister-in-law's vaginal fluids surging, like a giant wave. I increased the speed of my thrusting. This time, it was probably deep and long.

“Oh…oh…I’m…coming…coming…Xiao…Zheng…give…Mom…okay…oh…ah…”

“Brother-in-law…brother…you…are…so…good…so…good…I…am…going…to…come…I’m…going…to…come…ah.”

The women in both bathrooms seemed to have reached orgasm, shouting so loudly that I also ejaculated instantly. This scene was beyond description.

“Xiao Zheng…did you cum?” Mom asked.

“Mmm…Mom…you…are so slutty…how could I not cum?…Oh…Mom…why are you sucking my penis again?” the child cried, while Mom cleaned up her son’s things.

“You cummed all inside? Next time you have to tell me first! And you’re not allowed to watch me and your dad having sex again, or I won’t give you pocket money.” Mom said.

“Mmm…okay…I’m taking Lily home, you and Dad were peeking at us too.” the child said.

"Hmph... I was just worried about you, afraid you wouldn't know how and might hurt yourselves if you did it wrong," Mom said, having already dressed her son, and then stood up to put on her underwear and skirt.

"Let's go! Let's go out. What happened today—you can't tell your dad! It'll kill him," Mom added.

"Mmm... I know. But... Mom, your vagina is so tight and wet, it feels much better than with Lily," the son said.

"Stop praising me like that. I'm your mother. Your skills are just like your father's. I could easily deal with you two," Mom said in a slightly raised voice.

The door opened, and we almost came out together. They were unintentional, but my sister-in-law and I were doing it on purpose, wanting to see what kind of mother and son they were. As expected, the mother looked elegant and dignified, with fair and radiant skin, wearing a blue pencil skirt suit, and looked no more than 50 years old. The son was also quite something, with his hand in a cast. They seemed to come from a wealthy family.

That mother; perhaps because everyone was doing such sordid things, she wasn't particularly frightened when she saw us, but rather calm and composed, her expression as if we were the adulterers. That's true, when you're out having fun, don't be afraid of anything unnecessary, just adjust yourself, don't overthink it.

While having snacks at the restaurant, my sister-in-law and I kept glancing at the table of that mother and son. There sat a family there, three generations together, about ten people. The family seemed harmonious, without a trace of anything amiss. The child's father looked honest and kind, like a businessman, while the boy and his mother seemed particularly affectionate. I wondered if it was because they had just finished "that" and their relationship had deepened, or if they were already very close? On the way home, my sister-in-law and I had a lot of discussion, but ultimately it was none of our business, just something to chat about over tea and after dinner.

It was past ten o'clock at night when I got home. My sister-in-law had already opened the front door when I parked the car, and we went in together. However, it seemed no one was home except for my mother-in-law's room, which was lit by a dim light. My sister-in-law smiled at me with pursed lips, but then pulled me towards the window. After only a few steps, not far from the window, my sister-in-law and I both heard lewd laughter and sucking sounds. We looked at each other, and she bent down behind me to look closely.

"Strange, don't my parents-in-law always do it in the morning?" I whispered.

"Hmm...maybe Mom and Dad are in a good mood today! But it's never happened before!" my sister-in-law said with a laugh, her voice trembling slightly, probably thinking of her father's large penis.

"Want to go see?" I asked.

"Hmm...come on..." my sister-in-law said, then pulled me tiptoeing to the window, where we bent down and peered out.

The scene inside almost made my heart stop. It turned out that while my sister-in-law and I were having our affair, my wife had already planned a naked sex party with her parents.

Looking through the window, we saw my mother-in-law half-reclining on the edge of the bed, my wife kneeling and licking her vulva, while my father-in-law was licking his daughter's vulva from behind. Both my mother-in-law and wife were simultaneously emitting lewd moans. The lewd and stimulating scene stunned my sister-in-law and me, and it took us a while to recover. My penis was already hard, throbbing against my sister-in-law's buttocks. My sister-in-law turned around and looked at me with a lewd smile, her hand stroking my thick, erect penis.

"Brother-in-law... are you... alright? Hehe..." My sister-in-law laughed, removing all her clothes, one hand on the wall, looking at me with obvious impatience. I quickly removed my clothes, one hand caressing my sister-in-law's breasts, the other supporting her buttocks, then touching her overflowing, throbbing vulva.

Inside the window, lewd moans continued, while outside, the chirping of insects persisted. Below the window, I plunged my enormous penis deep into my sister-in-law's vagina, a beautiful, erotic symphony rising and falling, endlessly filling the air.

As for the wife's photos, I'll interrogate her about that after tonight's enjoyment.

[The End]

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