My busty sister-in-law and brother-in-law

My wife's name is Dandan, and she's 28 years old. We've known each other for many years and got married two years ago.
She has two children; she also has a younger sister named Shuangshuang, who is a few years younger than her. When I first learned their
names, I was quite curious. Apparently, my father-in-law desperately wanted a son and didn't even bother to name her properly.
When my wife was born, seeing it was a girl, he just said, "One is an odd number, so let's call her Dandan..."

A few years later, my sister-in-law was born... I think I don't need to explain much more, you understand...

Of course, this is just something my wife's family said jokingly; I don't know if it's true,
haha, that's a digression...

Anyway, after we got married, our relationship has always been very good. We both
work in public institutions, going to work and coming home on a regular schedule. Weekends are our happiest time; we usually think about
how to spend the weekend, where to go, what to eat, and then we make love like crazy at night.

Every time we make love, it's very enjoyable. My wife is very skilled in lovemaking and very open-minded. She
's the kind of woman who's very proactive, and her moans are very loud; she doesn't care if the neighbors upstairs or downstairs can hear her…it's almost to the
point of frenzy.

We're also very spontaneous when it comes to sex; we do it anytime, anywhere, whenever we want. We
both really enjoy this feeling of being exhausted yet completely satisfied.

However, this life changed a year later...

That day, my wife and I were having dinner at home after work when she said to me while eating, "Honey, my
mom called this afternoon. Shuangshuang is coming to our house next week. She said she wants to look for a job and asked us to help her find one, saying we know
a lot of people."

"Shuangshuang is coming to look for a job? Isn't she still in school?"

"She just graduated, right? She's assigned to an internship place, but she thinks it's too far and wants to be closer to me."

"Okay, let's keep an eye out for her and let her submit her resume herself. That way,
she'll have a better chance. By the way, where will Shuangshuang stay when she comes?"

"Well, until she finds a job, she'll have to stay at our house..."

"Oh? We're newlyweds. Isn't it inconvenient for her to stay at our house? Besides, your voice is so loud,
won't it scare Shuangshuang at night?"

After saying that, she lifted my wife's chin with her finger and said to her with a mischievous smile.

Of course, she knew what I meant. She gently slapped my hand away, glanced at me, and said, "I've been thinking about
this all afternoon. What should I do? I only have one sister. You know, if I don't take care of her, who
will? At worst, we can just be quieter next time." She finished speaking, a blush spreading across her face, and she gave me a
wink.

"It's okay, I was just teasing you. We should help each other. Shuangshuang is still young and has never worked before. Besides,
she's unfamiliar with this place. Let her stay here comfortably. I haven't seen Shuangshuang in a long time. Let her come and play.
We'll talk about it when she finds a job."

Actually, I really hadn't seen Shuangshuang in a long time. My wife and I have known each other for many years, and I'm not unfamiliar with Shuangshuang either.
We only go home occasionally, and we don't always see her. Every time we do, she's always clinging to my wife and me, talking about this and
that, very lively.

Back then, she was still in school, looking similar to her older sister—tall, with long hair, fair
skin, bigger breasts and a bigger butt than my wife. Shuangshuang was also very lively and
outgoing, naturally friendly with everyone.

My wife was alright too, but she was only truly uninhibited around me; in front of others, she always
acted very ladylike… hahaha. (Only I know how slutty… how wanton my wife is in bed…
hahaha…)

A week has passed in the blink of an eye. Today was the day we were to pick up Shuangshuang. The moment she stepped out of the station
, I was stunned. Was this really the same
little brat I knew, always laughing and joking, following us around like a little shadow? In just one year, she had blossomed into a beautiful young
woman.

Shuangshuang had her hair loose, styled in large, permed waves, and wore light brown-rimmed glasses.
She wore a deep V-neck white puff-sleeved top; the V was so plunging that her exaggerated
breasts seemed to defy the clothing, as if they might burst out at any moment…

I swallowed hard. Shuangshuang wore low-waisted denim shorts,
exposing her sexy, fair thighs. Her legs were more beautiful than my wife's, with a firm, toned look, probably
from exercising regularly in school. My wife, sitting in an office all year, while maintaining a good figure, still
couldn't compare to those thighs. Shuangshuang wore leopard-print high-heeled sandals, which, while somewhat
mismatched with her outfit, added a touch of wild beauty.

"Sister, I missed you so much!" she said, running up to my wife and hugging her tightly.

"You brat, you've really made something of yourself! Look at what you're wearing, didn't Dad scold you at home?"

"I wouldn't dare dress like this at home! I changed at the station. If Dad saw me, he'd kill me
!" Then, just as she finished speaking, she noticed me. "Hehehe, brother-in-law's here too! I'm really getting a lot of attention! Wow,
brother-in-law's getting more and more handsome! Hahahaha..."

"Come on, even if he's handsome, he might not even notice. I've been standing here like an idiot for ages, and you just noticed me?"

"Sister, look, your husband's really good at finding fault. When we get home, you'll give him a good talking to. He dared to talk about his sister-in-law
—your sister! Today he dares to talk about his sister-in-law, tomorrow he'll talk about his mother-in-law, the day after tomorrow he'll talk about his father-in-law…
You really have to teach him a lesson! Make him kneel on the remote control when we get home. Once he's done kneeling, change the channel, and then I'll beat him. Hahahaha."

"Alright, alright, I can't argue with you. Let's go home."

I was speechless. Who can talk back to this sharp-tongued girl? It seems she's really good with words. I wonder if
she could be this good at anything else, hahaha, I thought wickedly.

Let me first describe the layout of my house. It's a typical three-bedroom, one-living-room apartment. All three bedrooms face south.
There were three rooms side by side. My wife and I stayed in the master bedroom, which was on the far east side, and the bathroom was diagonally opposite. When we got home, I
helped Shuangshuang take her things back to the guest bedroom, which was on the far west side. Then I took Shuangshuang out to eat.

That's how Shuangshuang settled in. The next few days were spent looking for work everywhere. Dandan and I also
inquired around, but nothing was satisfactory. Something wasn't right, something wasn't right either.

I saw that Shuangshuang was a little anxious and seemed discouraged, so I comforted her, saying, "Finding a job can't be rushed
. Look, you've already sent out some resumes, and your sister and I are waiting for replies. Let's stop looking for now and just
wait. Tomorrow's the weekend, let's go out and have some fun. You've been here for several days, and I haven't taken you out to do anything." "

Oh! Brother-in-law! Hooray!"

she exclaimed, jumping up to me and hugging my neck tightly. Her previous dejected expression vanished completely.

She wrapped her arms around my neck, her enormous, soft breasts pressing against my chest, her hair right under my nose
, the fragrance of her hair wafting towards me. I felt a surge of excitement. These past few days, my wife and I had been busy with her
affairs and hadn't been in the mood for sex. But today, Shuangshuang's large breasts pressing against me rekindled my pent-up desires
.

"Alright, alright, get down, I'm almost out of breath. This little girl may be young, but she's surprisingly strong,"

I said, patting her back. At first, it was just patting, then it turned into gentle caresses. I
ran my fingers along the bra straps visible through her outer clothing, little by little… I inhaled deeply,
greedily trying to absorb all of Shuangshuang's body fragrance.

Just then, I glanced at my watch. My wife would be back soon. I said, "Come on down, you've exhausted me. I
won't be able to go tomorrow."

As I said this, I lifted her down, supporting her plump buttocks with my hands. When my hands touched her buttocks
, my mind went blank again. These were the buttocks of a young girl—so firm, so
full. It felt different from my wife's…

Shuangshuang jumped off me. Once again, I saw her large, snow-white breasts bounce as she landed
. Watching her bouncing breasts, I felt as if the ground itself moved.

"Brother-in-law, where should we go tomorrow?"

"Your sister said she wants to go to the beach and take you for a beach barbecue.

" "Great!! I love barbecue the most! Should I bring a swimsuit?"

"Of course! Who doesn't swim at the beach?"

"Huh? What if I don't bring a swimsuit?"

"Oh, okay, then go find your sister tonight and see if she has one you can wear."

As soon as I said it, I regretted it. How could I say something like that? Wasn't that clearly saying Shuangshuang's breasts were big
? I was so stupid.

I saw Shuangshuang blush, lower her head, and awkwardly agree before running
away…

I felt a little excited and a little regretful, but the words were already out, so I didn't dwell on it. I was
used to joking with Shuangshuang anyway, so I turned and went to the living room to watch TV.

After my wife came home, we were both in the kitchen preparing dinner. I told her about Shuangshuang looking for a job and about
going to the beach tomorrow. My wife was very happy and said she had wanted to go for a long time.

We finished eating quickly and watched TV in the living room. Then I saw Shuangshuang
whispering something in my wife's ear, and then the two of them mysteriously went to my bedroom.

I knew what they were doing. After they left, I casually walked to my bedroom. The door
wasn't closed tightly; there was a crack through which I could see inside. "Huh? What am I doing? Am I spying? Am I spying on
my sister-in-law?" I thought to myself, but I still pressed closer to the crack in the door…

"Shuangshuang, your breasts are so big! You can't even fit into my swimsuit. I remember your breasts
weren't this big before. Goodness, they're almost as big as little balls!"

I heard my wife's voice. I peered through the crack and saw that my sister-in-law's breasts were indeed like little balls,
round and plump. The pink nipples were delicate and inviting, and the breasts were white and tender, as if you could squeeze
water out of them…

"I don't know either. Logically, I should be fully developed, but last year
I grew like crazy! In just one year, my old bras no longer fit. Now, whatever I wear, I attract a lot of attention on the street.
Sometimes I'm embarrassed... But when I see men leering at my breasts,
I feel so accomplished, haha..."

She said, shaking her breasts up and down with both hands, like a general holding a trophy
.

"No way, you can't even fit into this swimsuit. Go buy one tomorrow. Otherwise, if you wear mine at
the beach, it won't even cover half your breasts! Do you want to kill someone at the beach? Hahaha..."

"Then I'll just have to buy another one. Ugh, this is so frustrating."

Shuangshuang said, about to put on her clothes in front of the mirror. At that moment, our eyes
met in the mirror. I suddenly froze, my mind went blank, my whole body stiffened, and I stood there,
unable to move. Shuangshuang was also a little surprised, and she paused for a couple of seconds, stunned. My wife was busy
tidying up clothes and didn't see us.

"I'll try them on again, maybe I'll find something suitable, then I won't need to buy anything tomorrow."

She then took back the clothes she had already tried on. I knew Shuangshuang had definitely seen my eyes,
and suddenly knew I was spying on her outside the door. She definitely knew, she definitely knew…

"Didn't you try them all on? Aren't they all too small? Why are you trying them on again?" "

I have nothing else to do, so I'll just try them on again."

She glanced at me in the mirror and put the swimsuit back on.

My God, is this a swimsuit? It's more like lingerie! The tiny bikini top
barely covered Shuangshuang's breasts; I'm not exaggerating when I say I could feel more than a fraction of her areolas.
The lingerie was practically straight out of a pornographic performance.

At that moment, Shuangshuang deliberately bent over, and ah… her breasts were almost touching the ground (a bit of an exaggeration,
please allow me to exaggerate my excitement, okay?). She didn't stop bending over; her left and right hands were doing gymnastic
movements (bending over, each time touching her right foot with her left hand, then
her left foot with her right hand, and so on…).

This movement excited me immensely. Those big breasts swayed even more violently with this movement,
and I could clearly feel my penis in my pants, ready to spring into action. My eyes
didn't want to leave for a second, and I started holding my breath.

"Ah! Shuangshuang, your waist is so flexible! You can go that deep? I could do it when I was in school, but after working for
a few years, I can't anymore, my waist is so stiff,"

my wife said, wanting to try too, but her back was already too sore from sitting at the computer for so long.

"I'm wearing pants, but I'm going to take off my jeans. They're even softer. I'll show you a few moves
."

She said, unbuttoning her jeans and sitting on the bed. Her eyes were fixed on me, who was peeping outside. That
look...it was so familiar, so familiar...

I remembered. It was the look in my eyes when I made love to my wife—lascivious yet alluring, sexy yet shy.
I couldn't describe how I felt. I was nervous, excited, and scared all at once.
But my intuition told me, "Don't leave, keep going..."

Then, they both pulled off their jeans, threw them on the floor, and stood up abruptly...

"I'm going to die, I'm really going to die..." It was a thong!!!

At this moment, Shuangshuang slowly turned around to face the mirror, her backside facing the door (which
was me). Then, she bent over again as before. I was utterly astonished, getting a clear view of Shuangshuang's large, white buttocks.
Her snow-white buttocks moved as she bent over, like
smooth, full jade, or like a child's face, white and tender…

I was practically drooling outside the door. Then, Shuangshuang turned around again, facing
me. I saw that below her navel, only a small piece of cloth barely
covered her bulging vulva, creating a small groove. I was quite puzzled. What was going on? Was
Shuangshuang a celibate woman?

"What kind of move are you doing now? You could be an athlete. This must be
harder than the last one, right?"

my wife asked. She then sat down on the chair next to me, turning her back to me. I took a deep
breath…

"What I'm doing now is called an arch bridge… You watch…"

I didn't know if Shuangshuang was saying this to me or to her sister…

After saying that, she put her hands behind her back and leaned backward, the opposite of the previous move. I understood why
it was called an arch bridge…

I was mesmerized. This move exposed her entire lower body to me. I
could see the tender flesh inside her panties through the edge, though it wasn't very clear, but it was already very tempting. My
penis was already rock hard…

"Hmm, Shuangshuang, you're really great. You're so young! Okay, get up, take a shower, go to sleep.
Have some fun tomorrow. Remember to remind me to buy you a swimsuit," my wife said.

"Okay, sis, should you shower first, or should I?" She stood up, and seeing
me at the door, gave me a sly smile.

"You shower first, I'll go check on your brother-in-law. Call me when you're done."

"Alright, go ahead, see what he's doing? I can't hear him, hahaha…is he
sleepwalking, hahaha…"

"You little devil."

My wife poked Shuangshuang's head with her finger and prepared to leave. I quickly returned to the sofa,
pretending to be asleep.

My wife, seeing me asleep on the sofa, muttered to herself, "Why are you sleeping on the sofa? Husband, husband
, get up and go back to the bedroom."

I answered groggily, "Oh, hey, why are you asleep?"

We went to the bedroom, and as soon as we entered, I pushed my wife down onto the bed, saying, "Wife, I just
had a wet dream, I can't take it anymore, I want it now, I want to do you…"

"Keep your voice down, not now, Shuangshuang isn't asleep yet, how about later? She's about to take a shower, mmm
..."

The moment I heard the name "Shuangshuang," I went berserk. I reached under my wife's skirt, spread
her legs, and slipped my fingers inside her panties. "Let's keep our voices down, she can't hear us. I can't take it anymore, I
want to fuck you right now, let me fuck you... please... touch my cock, it's really about to explode...
hurry, baby, give it to me, give it to me."

With that, I gently pushed my finger in, inserting the entire length into my wife's vagina.

"Ahhh...ahhh...mmm...ohhh...mmm..."

my wife cried out, covering her mouth with her hand, afraid that Shuangshuang would hear. The more afraid she was, the more excited I became.
Perhaps subconsciously, I hoped that Shuangshuang could hear...

My fingers moved in and out of my wife's vagina, and after only twenty or thirty thrusts, it was noticeably
wetter than before. Like a leopard in heat, I used my mouth to unbutton my wife's clothes, revealing
her two breasts. I immediately took her nipple into my mouth, licking it vigorously with my tongue, teasing
the nipple with the tip of my tongue...

My wife's nipples hardened under my teasing. My hand was still thrusting in and out of my wife's vagina, bringing out
some vaginal fluid. At this moment, my wife's vagina made a "sizzling" sound under my thrusting. My other hand
was kneading her other breast.

"Mmm...mmm...ahhhh...ohhh...mmmmm..." my wife whispered in my ear.
Panting heavily, my wife begged me to fuck her　 , "Husband, husband...fuck me, fuck me now...I can't take it anymore...my pussy is so itchy...
ahhhhh, hurry up..." I wiped my hand, which was inside her, on her panties, grabbed the edge, and with a forceful thrust, tore the panties apart. I quickly pulled down my own pants, still at my ankles. I couldn't wait any longer. I spread her legs, thrust my hips forward, and with a "squelch," I shoved it all the way in...　 "Ahhh..." My wife covered her mouth, but her expression was also very lewd. The more I looked, the more excited I became, and the more excited I became, the more violently I thrust into her. I stood on the ground, lifted my wife's legs, held her ankles with both hands, and looked down at her lewd expression.　 "So good...so good, husband, ahh...push me harder, mmm, fuck me, fuck me to death... ahhh...fuck me to death...wooo..." This was all as I expected. Sure enough, my usually quiet wife turned into a complete slut, a whore, a whore under my vigorous fucking. But I liked it. Tell me, what man wouldn't?　 I turned my wife's body around and made her lie face down on the bed. I was going to fuck her from behind. I saw my wife take a pillow and press her face against it to make her moans quieter. I saw that my wife's pussy was already overflowing with juices. I aimed my cock at my slutty wife's pussy and thrust in hard. "Pfft!" It sounded like a fart, but as fellow horny guys know, that's not...that's the sound of fucking when there's too much juice. Hearing that sound, I became extremely excited and sped up my thrusting. I held my wife's hand behind my back, grabbed it, and thrust into her hard. The sound of my balls hitting her vagina was incredibly pleasant. I really enjoyed this kind of sex; although it was tiring, it was incredibly pleasurable. After another ten minutes or so, I was drenched in sweat, and I could feel my wife was exhausted because her moans had lost their strength and were now tinged with sobs.　 "Ah...husband, hurry up and cum, ahh...um...faster, faster, I can't take it anymore..."　 I increased my frequency, used all my strength, and pressed the throttle to the maximum, "slap, slap, slap," "Ah...ah...ah...um...um...uh, oh...oh...oh..." The sounds blended together , and finally, with a burst of strength, I shuddered and ejaculated into my wife's vagina. Her vagina visibly contracted. I panted and said, "Baby, go wash up, I've already ejaculated inside..."　 "Um...I don't want to wash, I'm so tired, just wipe it off, I'm so sleepy..." My wife said, panting heavily and with a sob in her voice, "Wipe it off for me, I don't want to get up, I'm exhausted, I want to sleep."　 "Okay then!" I took some paper and wiped my wife's vagina clean. After wiping it clean, I felt I needed to wash up too. At this moment, my wife was already snoring softly. I put on my shorts and prepared to go to the bathroom to shower.　 As soon as we opened the bedroom door, we were stunned by what we saw. Shuangshuang was standing in the doorway wrapped in a bath towel. We looked at each other, feeling quite awkward. My eyes darted around, and I stammered, since Shuangshuang had already caught me peeping . I said, "Shuangshuang, what are you doing here? Why aren't you asleep yet?"　 "My sister told me to take a shower and then tell her to go take a shower..." Shuangshuang's face was flushed, and she lowered her head, completely lacking her usual mischievousness. She looked incredibly cute.　 "Oh, um... I see... Your sister's asleep... she probably won't shower, you should shower..." I blurted out nervously. Shuangshuang had just said she'd already showered, and I felt my nervousness was getting out of control . I wanted to leave quickly. "I'll shower... um... you should go to sleep first." I walked out, and because I was in such a hurry, the doorway was a bit narrow, and I brushed against Shuangshuang's shoulder. This brush had no effect; I accidentally knocked off her towel... I was stunned again... Shuangshuang was completely naked in front of me, her hands covering her crotch, her head down. I was so nervous, I immediately picked up the towel from the floor and wrapped it around her, but in my panic, I couldn't hold it and it fell to the floor again. I was so dizzy.　 "Hahahaha..." Shuangshuang couldn't help but laugh softly. "Brother-in-law, could you be any more clumsy ?" Seeing my flustered state, she wrapped a towel around herself and said, "What are you doing? Go ahead, I'll do it myself."　 "Okay, then I'll take a shower first." I was incredibly nervous. I quickly went into the bathroom, turned on the shower, and let the water pour over my head and feet. I wanted to calm myself down, but the more I tried, the faster my heart raced. "What's going on?" I wondered. "Why am I so agitated?" Was it because someone saw me having sex with my wife? Was it because they were spying on Shuangshuang? Did they see Shuangshuang naked? I asked myself why . Didn't I already know the reason? I think I know…　 Just then, the bathroom door opened. Seeing it open, I said, “Wife, are you taking a shower too?”　 “Brother-in-law, it’s me…”　 “Shuangshuang? Why are you in here? Get out… Your sister will be taking a shower soon…” I stammered, quickly turning off the water and getting off the bathroom door. “Get out, Shuangshuang, don’t you know your brother- in-law is taking a shower? Why are you in here?”　 “Oh… Brother-in-law, you only remember you’re my brother-in-law now? Who was drooling at your bedroom door earlier? Now you want me to leave? When you saw me clearly, you didn’t tell me to leave!”　 “This… Shuangshuang, you saw everything?” I asked nervously.　 “What do you think? If I hadn’t seen you at the door, I would have already gotten dressed. What would I be doing? Am I crazy?” Shuangshuang said, rolling her eyes at me. "Then...then why did you keep letting me peek...Shuangshuang...I'm sorry, please don't tell your sister...please." I lowered my head, not daring to look at Shuangshuang.

At this moment, Shuangshuang cupped my face in her hands. "What are you saying? I won't tell anyone. It was my own choice
. If I hadn't, I wouldn't have shown it to you. What I said in your bedroom was also for you."

"Shuangshuang..." I was too excited to speak, probably because I didn't know what to say... I held Shuangshuang
's hands, looking at her face. "Thank you!"

"Brother-in-law, do you know? You've always been my dream lover. In my heart, you're the perfect husband
. But I love my sister and my family very much, so I won't do anything to betray them. That's why all the boyfriends I dated before
were based on you. But later, they were still different from you, so we broke up.
I didn't want to break you up with my sister, but I just love you... Waaah... Waaah... Waaah..."

"Silly girl, I'm not as good as you say. You overestimate me. What have I done to deserve this? But I'm
still happy that you like me because you're so beautiful and so sexy."

"Brother-in-law, do you think I'm beautiful?"

"Beautiful."

"Then kiss me..."

I gently kissed Shuangshuang's forehead...

At this moment, Shuangshuang suddenly squatted down, grabbed my already erect penis with both hands, and immediately
took it into her mouth...

"Ah!" I cried out involuntarily. I saw Shuangshuang with her eyes tightly closed, licking my penis with relish,
making "glug glug" sounds as she licked.

Her other hand was playing with my testicles. I was a little nervous at first, but then I just enjoyed it.
Yes, Shuangshuang was really good at giving me blowjobs, and she licked me so well. My testicles were throbbing in her soft little hands. Shuangshuang
really understood me...

After about five or six minutes of this, Shuangshuang gestured for me to spread my legs wider, then
squatted at my feet, put her head between my legs, licked my testicles with her tongue, and then took them into her mouth
. "Ah!" I cried out happily.

Shuangshuang sucked on it for a while, then her tongue traced along my testicles, licking the center of my anus. Yes,
that was my most sensitive spot, and I trembled all over… After she licked me until I was almost at my limit, Shuangshuang took
off her clothes. I saw her large, soft, white breasts bouncing on her chest…

After she was naked, Shuangshuang squatted on the ground, looking at me with the same lustful eyes as her sister. She
cupped her breasts in her hands, putting one of them into her mouth, licking it while looking at me
.

That expression, that action—I believe no man could resist it. I was no exception
. I helped Shuangshuang up, wanting to kiss her, but she covered my mouth with her finger, whispering
in my ear, "I won't let a man's penis go inside
me right after he's been inside another woman... not even if that woman is my own sister. But I'll let you experience a different
kind of pleasure, and I'll make you feel like you're floating on air..."

Then she squatted down, using her large breasts to clamp my penis between them, giving me a blowjob. Shuangshuang
took out the toothpaste she had prepared earlier from a box next to her, squeezed it onto my penis, and then used her breasts
to stroke it.

"Ahhh..." What did this feel like? Cool and slightly stimulating,
it felt like inside her vagina when it was on her breasts, but not so cool inside, like a "fire and ice" sensation.

After about ten minutes of this stimulation, she washed the toothpaste off my penis with water. Suddenly, she took
my penis into her mouth. It had felt cool before, but now it was hot, like it was about to explode; I really wanted to
ejaculate.

Shuangshuang seemed to know what I was thinking, so she sped up her oral sex, increasing the depth, until my
penis was almost inside her throat. She slowly bit down on my penis with her teeth, finally nibbling at the glans, then vigorously stroking it with her mouth
. Soon, my penis became very thick and hard in her mouth, and the veins were bulging.

Shuangshuang knew I was about to ejaculate, so she sped up even more. Finally, with a burst of force, a stream of semen shot into Shuangshuang's
mouth. Shuangshuang sucked hard a few times, drawing it all out, then caught it in her small hand. I saw
her smear all my semen on her hand and show it to me.

I breathed heavily, watching her spit the semen onto her hand, then eat it all up, leaving not a drop. She then
grinned mischievously, "Brother-in-law, go to sleep early. Don't forget to take me out to play tomorrow, hahaha..." With that,
she walked out alone.

I was bewildered. Could I really call this sudden thing "sex"? I didn't know, but one
thing I did know was that my sister-in-law gave me oral sex, hahaha...it was beautiful, wasn't it? Okay, time to wash up
and go to sleep. Have a good time tomorrow.

The next day, around 10 a.m., when I got up, the two sisters were already up and having breakfast. Seeing me come
out, my wife said, "Hurry up and eat, we'll leave after that. It's past 10, we won't get there until 1 or 2 p.m."

"Yeah, brother-in-law is so lazy! The sun's practically on his butt, and he's still not up. What time did you go to bed last night?
What were you doing? Why can't you get up this morning?"

Shuangshuang said. I noticed both sisters' faces were a little red. I said, "Okay, let's
hurry up and go. Let's buy some more things, otherwise it'll be really late by the time we get there."

I quickly ate a few mouthfuls of porridge, then drove them to the supermarket to buy sunscreen, drinks, and of course,
my big-breasted sister-in-law's swimsuit…

After buying everything, we quickly drove to the beach, found a hotel there, booked two rooms, changed into
our swimsuits, and prepared to go to the beach.

Shuangshuang and my wife changed into their swimsuits and came out of Shuangshuang's room together. As soon as I opened the door, I was deeply attracted by the scene before me
.

My wife wore a white bikini. She has a great figure, just not as
striking as Shuangshuang's. But the slit in her white bikini is way too big; there's practically just a tiny strip of fabric between her legs.
I thought to myself, "Can't her pubic hair be visible?" Her bra was also beautiful, outlining her cleavage very
attractively.

Shuangshuang wasn't wearing a bikini; I guess it's because they don't have her size…

She was wearing a one-piece swimsuit, which wasn't very revealing, but her impressive bust was still very eye-catching
. Even without a bikini, her cleavage was deep; Shuangshuang's breasts were so
big… I secretly swallowed again.

We swam at the beach, sunbathed, caught small crabs, collected seashells…

Before long, it got dark. We went to eat the barbecue we'd been craving, drank some beer, and were quite full. Afterwards, we
returned to the hotel and chatted for a while in our room. Shuangshuang said, "I'm tired, I want to sleep
. I'm going to bed."

We agreed and went to wash up and prepare for bed. After washing up, my wife and I lay on the bed, chatted for a few
minutes, and because we were so tired, our eyes soon closed, and we fell asleep quickly.

I don't know what time it was, but I felt someone tugging at my clothes. I opened my eyes, and "Shuang..."
Shuangshuang quickly covered my mouth, gestured for me to leave, and then went out first.

I quietly got up, gently opened the door, and glanced at my wife one last time to make sure she wasn't awake. I turned around
and went into Shuangshuang's room.

As soon as I entered, Shuangshuang jumped onto me, clamping her legs around me and wrapping her arms around my neck.
She kissed me passionately, our mouths intertwined, our lips intertwined, our tongues intertwined, our teeth
intertwined…

My hands caressed Shuangshuang's back, then squeezed her plump buttocks. I gently
sucked on Shuangshuang's fragrant tongue, and she moaned joyfully under my sucking, "Mmm… mmm
… uh…" The sound was low, but very beautiful…

I slipped my hands inside Shuangshuang's clothes, lightly tracing her smooth back. Shuangshuang trembled slightly a few
times. Our mouths never parted. I gently placed Shuangshuang on the bed and
unbuttoned her clothes one button at a time. The moment I unbuttoned the last button, I pounced on Shuangshuang's enormous breasts like I had found a treasure.
I kissed, bit, sucked, licked, and teased them with both hands… Shuangshuang writhed on the bed like a snake
.

Her breasts were so big, I couldn't even hold them in one hand. I cupped her breasts and nibbled on her red
hickeys. Her breasts were very white, like freshly steamed buns. After my repeated, vigorous kisses and bites,
a few hickeys appeared on those white buns.

I kissed down her breasts, licking every inch of her flat stomach with my tongue. With each kiss
, Shuangshuang's body would tremble on the bed. Shuangshuang's belly button was very cute and pretty, especially
since she had a shiny belly button piercing.

I continued kissing down her belly button until I reached her underwear. "I want to see if you're a 'white tiger',"
I thought to myself, slowly pulling down her underwear. I was shocked to see that Shuangshuang really was a 'white tiger' girl.

I'm talking about the natural kind, not the kind where the hair isn't shaved off by hand. It's said that only one in ten thousand miles can find one like that.
This is the first time I've encountered one. I put my eyes close to the vulva, wanting to see this hairless,
mirror-like, smooth vulva. I looked and looked, and saw that there really wasn't a single hair. The slit was clearly visible
, like a pure white abalone.

I couldn't resist the temptation any longer. I smelled it; there wasn't a strange smell, just a hint of shower gel
. I kissed it; it was the first time I'd ever kissed such a smooth, hairless vulva. I licked it with my tongue, and in no time
, I had her clitoris erect. It was incredibly alluring. I licked further down, reaching her
labia majora. Then I noticed her buttocks were soaking wet…

I parted her labia with my right hand; it was overflowing with fluid, with droplets dripping down. I didn't waste a drop; I
licked it clean with my tongue. Finally, I even went inside her vagina to collect more fluid,
licking every inch of her vulva, inside and out.

Shuangshuang writhed even more violently on the bed, pressing my head down with both hands and shoving it hard against her vulva…

“Mmm…mmm…uh…ah…ah…oh…oh…brother-in-law, brother-in-law…ah…
ah…fuck me, fuck me…my vulva is so itchy, you’ve licked it numb, fuck me now…ah…”

Yes, I had just finished licking her, and her vulva was overflowing with fluid again. Shuangshuang pressed my head down hard, wanting me
to lick her vulva harder. The louder she cried out, the more fluid she produced. I reached down with one hand, pulled out my penis
, aimed it at her vulva, and thrust it in.

“Ah ah…mmm…brother-in-law, brother-in-law, your penis is so thick, move slowly, oh…oh
…it’s filling my vulva completely, be gentle…oh…oh…oh…”

I felt her vulva was tighter than my wife’s, so I thrust into her at the slowest speed. I thrust like that for
about ten minutes.

"Ah...ah...ah...brother-in-law...faster, faster...I'm coming...faster...faster..."

I strained, and both of my legs trembled a few times. I knew she had orgasmed...

After resting for a few minutes, I picked her up and had her wrap herself around my waist. This way, when I penetrated her, I could also suck on her
big breasts. Really, her breasts were the most beautiful I had ever seen—big, white, and soft, with red nipples. I held
her buttocks and inserted my penis into her vagina, then I sucked on her nipples...

This kind of sex was the most tiring, but... I loved it. I loved the expression on a woman's face as she writhed and moaned on top of me
. My mouth was sucking hard, and she was bouncing on top of me—
what a lewd scene!

After a dozen minutes, we were both exhausted, crying out, "Brother-in-law... ooh... ooh... ooh...
um... uh... brother-in-law, faster, faster... faster... I'm going to come again... oh... ah..."

With my last bit of strength, I thrust hard into Shuangshuang's tender vagina. With one last push, her vagina gushed out...
We both cried out "Ah..." at the same time. I ejaculated all my semen into her vagina.

After I finished, we remained embracing, neither of us separating, both breathing heavily. Then,
my penis slid out of her vagina, followed by a stream of white fluid flowing out.

The room was filled with the smell of semen and vaginal fluid. We comforted each other, and I helped her take a shower
. After she finished, I looked at the clock; it was four in the morning...

Shuangshuang said, "Let's go back quickly. If my sister wakes up and can't find you, don't let her find out. I
don't want a third person to know about this, okay?"

"Of course, I won't let anyone else know, but I have something I want to ask you..."

"Go ahead and ask. Is there anything we can't say to each other now?"

After saying that, she snuggled into my arms, like a little kitten... so cute.

"Will we ever get back together?"

"Yes, darling, I'll never forget you. I'll look for you whenever I have the chance."

"Okay, I believe you. I'll head over now, you get some sleep too." I kissed Shuangshuang.

"Okay, bye!" She kissed me back.

We both went to sleep, and that afternoon we drove home.

In the following days, we didn't have a suitable opportunity to make love. Later, Shuangshuang found a job
and moved out of our house because it was far away and she had to live in a dormitory.

After that, we didn't have many opportunities to make love. Sometimes we'd only have
a chance to be intimate when Shuangshuang came back to see her sister. The opportunities were few and far between. Occasionally, when I was away on business, we'd finally be together.

About three months ago, my wife told me that Shuangshuang had a boyfriend. After that, I rarely contacted Shuangshuang anymore
because I really couldn't give her anything… I could only wish her well.

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