Brother-in-law sex training

After my university exams, I was unemployed at home, with nothing to do. My boyfriend had gone on some academic study tour, leaving me alone in Hong Kong. So when my sister called and invited me to spend a few days at her house, I immediately agreed.

My sister and brother-in-law lived in a luxury housing estate on Hong Kong Island, with complete facilities, including a swimming pool and gym, which I was happy to use.

I arrived at my sister's house on Saturday afternoon, and they greeted me warmly. My sister and I have a very good relationship. She's only eight years older than me, and my brother-in-law is more than ten years older. They don't have children yet, so they live a very comfortable life.

"Sister, you're so lucky! Your home is so beautifully decorated. Your brother-in-law is so good to you."

"He doesn't know how to decorate. This is all my work. He just goes to the gym all day long."

It was then that I noticed that my brother-in-law did indeed have an athletic physique, and my eyes kept taking in his appearance.

My brother-in-law didn't seem to notice my reaction and said, "You don't need to envy your sister. You can enjoy your vacation here these few days."

When I heard the word "enjoy," my gaze happened to land on his crotch, and I couldn't help but wonder, "I wonder how big his thing is?"

They, of course, had no idea what I was thinking, and said, "Your brother-in-law and I have to work on Monday, so we can only accompany you tomorrow. Here's your resident card; you can use it to access the club's facilities, and you can use anything in the house as you please."

"Thank you, sister." "

So, what do you want to do tomorrow?"

"Go swimming."

"Great! The club's pool is nice; I haven't swum in a long time."

Actually, I wanted to see my brother-in-law's body in his swim trunks; admiring muscular men has always been one of my interests.

Then they took me to a guest room they had prepared, and after settling my luggage, we went out shopping and had dinner together.

After dinner, we returned to my sister's house and enjoyed my brother-in-law's high-end audio-visual equipment. After a while, my sister said she needed to rest and went back to her room with my brother-in-law, reminding me to go to sleep early.

I watched the DVD for a bit longer and suddenly remembered that I hadn't worn my swimsuit in a long time, and I wondered if it still fit. So I went back to my room, found the swimsuit, and, looking in the mirror, took off all my clothes before putting it on. I've really grown up; my breasts and hips are fuller now, filling out a regular one-piece swimsuit completely, only covering half of my breasts. My lower body looked like a high-V swimsuit, barely covering my genitals, making my legs appear very long and sexy in the mirror. However, quite a few pubic hairs were sticking out, so I'd have to take good care of them.

I thought to myself: Luckily I remembered to try on the swimsuit, otherwise I'd be embarrassed tomorrow. But I didn't bring a razor, so I had to ask my sister for help. But they were probably already asleep, so I thought I'd check the bathroom. I figured my sister, and even my brother-in-law, wouldn't mind if I borrowed their tools.

I took off my swimsuit, put on a loose t-shirt, and ran to the bathroom without even putting my underwear back on.

I walked quietly so as not to wake them. As I passed their bedroom, I heard some strange noises, like my sister talking, but I couldn't make out what she was saying. I didn't pay any attention and went into the bathroom.

I easily found a razor and shaving cream, pulled up my t-shirt, wet my pubic area with warm water, applied the shaving cream, and began carefully shaving my pubic hair. I decided to shave the entire pubic area clean, since the swimsuit didn't cover much. After shaving, I used a hot towel to dry my vulva. Now, every part of it was smooth, making me look like a little girl. Although it wasn't my first time shaving, I always felt particularly aroused during the process. The smooth vulva felt very special to touch with my fingers, and sometimes I couldn't control myself, my hand constantly wanting to touch it.

As I was immersed in the world of touch, I suddenly remembered the sounds I had heard outside my sister's door. Driven by curiosity, I quietly went to her door again. I could

still hear my sister making soft moaning sounds from inside, like she was enduring immense pain or enjoying ultimate pleasure. Then I realized the door wasn't completely closed; no wonder the sounds were coming out.

I pushed the door open slightly and saw my sister's bare back. My brother-in-law was lying in the middle of the bed, and my sister was kneeling on top of him, kissing him. My sister's legs were spread wide, straddling him, and beneath her round buttocks, I could clearly see a thick, large penis inserted into her vagina.

Although I've had sex with my boyfriend, this scene was still incredibly shocking. I'd never seen anyone else having sex in front of me before, and besides my boyfriend, I'd never seen anyone else's penis. I felt both scared and incredibly excited. Even though I knew it was wrong to peek at my sister, I still hid by the door and continued watching their performance.

They were still entwined together. My brother-in-law's hands were constantly stroking my sister's back, and my sister was gently swaying her hips, stroking my brother-in-law's penis. I'd never experienced this kind of slow, gentle pleasure before. My boyfriend only knew how to thrust wildly and brute force; sometimes he'd finish before I even understood what was happening. Seeing my sister's way of making love made me incredibly aroused, and I felt my body getting hotter and hotter.

At this moment, the brother-in-law's hands slowly moved to the sister's buttocks, gently rubbing them for a while before tightly grasping both buttocks. Then, with a thrust of his waist, he forcefully inserted his thick penis into the sister's body. The penis was completely submerged in the sister's vagina, leaving only the wrinkled scrotum outside. The sister couldn't help but cry out "Ah!"

Just then, I heard my brother-in-law say, "What's wrong? Usually at this time, you'd be yelling and screaming with pleasure, why are you so reserved tonight?"

"You bad man, ah... I told you before that I shouldn't have sex with my sister at home, ah... do you still want me to moan loudly?"

"You say you don't want sex, but who saw my big cock and couldn't stop playing with it?" "

Ah... who told your cock to be so bad, oh... after fucking for so long, you still won't ejaculate?"

"Do you want me to ejaculate? Then you have to clean me up!"

"Don't even think about it, see if I don't fuck you until you're all over the place."

Then my sister sat up, her lower body tightly sitting on my brother-in-law's penis, and I could no longer see where they were intercourse. My sister placed her hands on my brother-in-law's chest, fixed her upper body, and began to slowly rock her lower body back and forth, my sister riding like a horse.

Gradually, my sister's swaying speed increased, and her hair began to toss. I saw her biting her lip, trying hard not to scream, but after about a hundred thrusts, she finally cried out and collapsed limply onto her husband again. I saw their point of contact again; my sister's vulva was already leaking copious amounts of vaginal fluid, wetting her husband's penis and scrotum. His penis was still erect and inserted in her vulva, showing no sign of withdrawing.

Then I heard her husband say, "Are you done? Now it's my turn." He then sat up.

Now they were sitting facing each other, embracing, their lower bodies still pressed tightly together. The poor sister had no chance to resist, completely at her husband's mercy. He then used his hands to support her round buttocks, moving his body in sync with her movements, kissing her breasts while tossing her up and down.

That thrusting must have been incredibly intense. I think my sister must have been ecstatic. She could only hold her brother-in-law's head and make some meaningless noises. I could even vaguely hear some "sizzling" sounds coming from where they were having sex. My sister must have released a lot of vaginal fluid again.

Finally, my sister had no choice but to beg my brother-in-law in a low voice, saying, "Ah...ah...please...please shoot your burning hot semen...ah...into my body...ah..."

"And what will you do after I ejaculate?"

"Ah...I will lick your...your cock clean, ah...I promise that you, that treasure of the world, will not be wasted at all."

My brother-in-law seemed very satisfied with this answer, and his thrusting movements slowed down. My sister took the opportunity to lie on my brother-in-law's chest, panting. At this moment, my brother-in-law suddenly raised his head and met my gaze. I was so careless. In their embracing position, my brother-in-law was facing me directly, and I hadn't considered this at all.

Just as I was wondering how to react, my brother-in-law put a finger to his lips, making a shushing gesture. It seemed that my brother-in-law didn't object to me watching. As I was considering whether I should stay, I was once again attracted by the scene before me.

At this moment, my brother-in-law grabbed my sister with one arm, then rolled over, pinning her beneath him. Because he was very strong, the movement was swift and clean, the two bodies remaining perfectly still for a moment.

What I saw now was his back—the so-called "broad back and thick waist"—with a strong waist and firm buttocks; no wonder he was so skilled. Next, he placed his hands on the back of my sister's knees, spreading her legs wide; it seemed he was about to launch a full-force attack. Sure enough, he thrust his hips forward, his entire penis plunging back into my sister's vagina, causing her to cry out again.

He then raised his buttocks high, pulling his penis out more than halfway, but I still couldn't see the head. It seemed his penis was not only thick but also very long. After pulling it out most of the way, he thrust it in again with all his might, so hard that his scrotum slammed against my sister's perineum.

My brother-in-law continued to fuck my sister relentlessly, the poor woman writhing in agony, only able to utter meaningless sounds.

"Ah...ah...you're killing me!"

"I...I can't take it anymore, ah..."

"Another...another orgasm...ah..."

"So beautiful..."

But my brother-in-law continued his relentless thrusting, pumping about a hundred times before his speed increased, his throat emitting animalistic sounds. Suddenly, he stopped all movement, his muscles tensing, his lower body pressed tightly against my sister's. I saw the muscles in his buttocks tighten, then relax, then tighten again, repeating this contraction and relaxation four or five times. After a few more gentle thrusts, he collapsed onto my sister, both of them panting heavily.

I think he ejaculated, but his penis was still inside my sister's vagina, unwilling to separate! I thought it was time to leave quietly, but it felt a little incomplete not to see them officially separate. Actually, maybe I just wanted to see my brother-in-law's entire penis before I was satisfied.

After a while, my sister gently nudged my brother-in-law, and he rolled over and lay back on the bed, pulling out his penis at the same time.

I finally saw my brother-in-law's entire penis. Although it was only about 80% erect now, it was already a size bigger than my boyfriend's. The penis itself was already quite thick, but I didn't expect the head to be even bigger. No wonder my sister enjoyed it so much. The entire penis was covered in vaginal fluid and semen, glistening in the darkness.

While I was still admiring my brother-in-law's penis, my sister suddenly sat up, which startled me. I thought she had discovered me, but then I saw her put her head on his penis. I saw her gently straighten it with one hand, and then stick out her tongue to lick it from bottom to top, cleaning away all the semen and vaginal fluid. I really couldn't believe that my sister would actually use her mouth to clean my brother-in-law's penis.

After licking one side clean, she turned her head to lick the other side. She licked so slowly and carefully, as if she were thoroughly enjoying it. I couldn't help but swallow. Finally, my sister opened her mouth wide and took the entire glans in, then gently sucked on it, turning her head from side to side. She was trying to suck out any remaining semen in her urethra.

With a final "thud," my sister released my brother-in-law's penis and lay back down beside him. It seemed her work was done; his penis was now completely clean and limp, and he wore a satisfied smile.

Then, his gaze drifted back to where I was hiding. Embarrassed to make eye contact, I fled back to my room.

As I took a step, I realized my inner thighs were soaked. My vaginal fluid was slowly flowing down my thighs. I had never been so wet before; if I hadn't been without underwear, it would have been completely soaked.

I hurriedly ran back to my room, sat on the bed, and carefully wiped my vulva and thighs with tissues. While cleaning, a strange thought suddenly occurred to me: if my boyfriend used his tongue to clean me, I would be itching terribly. At that moment, I truly hated my boyfriend. If he were here, I would definitely rape him.

That night, my mind raced. One moment I thought of my sister and brother-in-law making love, her face contorted in ecstasy, her body radiating sensual pleasure—how many orgasms had she experienced? The next, I imagined her cleaning up after her brother-in-law; his penis was so magnificent, filling her mouth completely, making her look pitiful.

The image of their lovemaking, her brother-in-law's muscular physique, firm buttocks, and powerful penis swirled in my mind all night. Finally, I wondered: if my brother-in-law wanted to have sex with me, would I refuse?

The next morning, I woke up late. After washing up, I noticed my sister and brother-in-law had also been up for a short while, likely due to the intensity of their activities the night before. I had initially thought I'd feel awkward facing my brother-in-law, since he knew I'd been watching, but he and I chatted and laughed as if nothing had happened. Gradually, I forgot my worries.

After the three of us had dinner and joked around for a while, we went swimming at the club.

When my sister and I changed into our swimsuits in the club's changing room, I was worried she'd scold me for wearing something too revealing. But when I saw her in her new swimsuit, I relaxed. My sister isn't conservative at all. The front of her swimsuit seemed unremarkable, but the back and side openings were quite large, making it look sexy yet subtle from the side—a perfect description of my sister.

When we arrived at the pool, my brother-in-law was already there, warming up. He certainly had a muscular physique: strong arms, a broad chest, and those enviable abs. I really wanted to reach out and touch them.

He was wearing black and white striped swim trunks. While not particularly sexy, the black and white contrast made them even more alluring. The white parts seemed to reveal what was underneath, yet also appeared to be just a reflection of the black. But where was last night's big penis? How could it possibly be hidden inside those little swim trunks?

While I was lost in thought, my sister had already pulled me into the water. The pool facilities were really nice, with separate outdoor and indoor sections, a wading pool, water slides, a massage pool, and so on. And because it was a private club, there weren't many people there; it was mostly kids and their caregivers, mostly older people, all playing in the shallow end.

The three of us swam together for a while, soaked in the massage pool, and then went to the wading area and started splashing around. My brother-in-law even picked me up around the waist and threw me into the water. My sister and I then wrestled with him until he yelled that he was surrendering, and only then did we stop. Of course, I took the opportunity to touch my brother-in-law's muscular body a few times.

After a while, my sister said she wanted to go outside to sunbathe. Since I didn't want to get tanned, my brother-in-law and I continued swimming in the deep end. It was a secluded corner, and after swimming freely for a while, I was resting by the poolside when my brother-in-law swam over and said he wanted to improve my swimming. I jokingly asked him for guidance.

He then supported me by the waist with both hands, asking me to kick the water for him. After kicking for a while, he put me down, demonstrated a few times, and then lifted me up again to practice.

At this point, I felt something was off because one of his hands was supporting my chest, and the other was supporting my lower abdomen, roughly at the mons pubis. But he didn't seem to notice. Maybe I was just imagining things, or maybe he was deliberately teasing me. I felt a slight excitement and, without saying anything, started kicking the water.

Because my swimsuit wasn't a perfect fit, my pubic mound wasn't completely covered, and part of my brother-in-law's hand was in direct contact with my skin. It felt tingly and strangely interesting, so I kicked the water harder, increasing friction through body movement.

As I enjoyed the pleasure of the touch, I realized my brother-in-law's hands weren't still. One hand was gently rubbing my breast, while the other had moved to my pubic mound. Even through the swimsuit, I felt very excited, so I continued to move my body, hoping for even greater stimulation.

Soon after, I felt a finger slip between my legs, gently pressing on my vulva through the swimsuit. I instinctively squeezed my legs together, but the finger didn't withdraw; instead, it began to tremble slightly. Combined with my kicking motion, I felt an unprecedented stimulation. Unexpectedly, when I squeezed my legs together, the friction from his fingers increased, intensifying the stimulation of my vagina. I felt my body growing hotter and hotter, and my vagina began to moisten.

The electric shock sensation continued to surge through me, and gradually I began to lose control. My body started swaying uncontrollably, and finally, I couldn't hold on any longer. My legs stopped kicking, and I slumped down, sinking into the water. My brother-in-law seized the opportunity to pull me into his arms from behind.

He held me tightly, but his hands didn't stop there; they continued to grip my chest and mons pubis. He even pulled down one of my shoulder straps, loosening my swimsuit, and slipped one hand inside, directly caressing my breast.

His touch was so gentle yet powerful, his fingers constantly teasing my nipples. My whole body went numb from my brother-in-law's ministrations, my nipples hardened, and I felt an indescribable pleasure. To avoid sinking into the water, I had to hook one arm around my brother-in-law's neck and hold onto his arm with the other, leaving me completely defenseless as his hands ravaged my body.

He even lowered his head to kiss the back of my neck and earlobe, making me weak all over and even more powerless to resist his intrusion. The other hand, which was on my mons pubis, wasn't idle either; it had pulled down the crotch of my swimsuit, completely exposing my vulva to the pool water, and its fingers were already stroking back and forth along my pubic folds. The pleasure made me so weak that I clung to my brother-in-law.

My last shred of reason made me whisper, "Brother-in-law, no...don't, no..."

But my brother-in-law ignored me, only intensifying his teasing: "Little beauty, was last night's performance wonderful?"

My brother-in-law had never called me that before. I was startled by his frivolity, and suddenly something occurred to me: "Did you...do you intentionally leave the door...closed properly?"

"Of course, wouldn't it be a pity if you weren't there to enjoy it?"

"I...I don't want to enjoy it."

"Yes, yes, yes, making love is something you have to experience yourself. Just enjoying it is useless." "

You...you're such a...bad person...oh..." I collapsed against my brother-in-law again, my back pressed against his strong chest, but I felt something hard supporting my buttocks. I didn't care what it was.

At this moment, my brother-in-law's hand intensified its stimulation of my exposed vulva. Suddenly, as if he had discovered a secret, he used his fingers to confirm it and asked, "What's going on? It seems like you haven't grown any pubic hair yet."

"I... I shaved it clean for you."

"Really? I love smooth vulvas the most. Then I'm going to take good care of you."

I don't know why I said such a thing to my brother-in-law, but he seemed to like the answer and kissed me from the back of the neck. The hand that was stroking my vulva also used his fingers to spread my labia and directly rub the tender little petals inside.

The stimulation almost made me faint with pleasure. I felt my vulva was already completely wet, and I gripped my brother-in-law's hand tightly until his flesh sank in.

"Little beauty, what's this slippery, sticky stuff?"

"It's...it's...love juice."

"What love juice? It's vaginal fluid, you slutty little beauty."

"It's...it's vaginal fluid...slutty...oh..." I started to moan incoherently.

"Brother-in-law...ah...it feels so good..."

"Oh...no...don't...ah..."

After a round of stimulating pleasure, I came to my senses and said, "Ah...brother-in-law, let's...let's go ashore and find a place, okay?"

At this time, my swimsuit was almost half off, and my brother-in-law had already slid a finger into my vagina. I was afraid that if things continued like this, the situation would become uncontrollable.

"Silly girl, can I go ashore like this?"

I couldn't understand what my brother-in-law meant for a moment. My brother-in-law then led my hand behind my back and touched a hot, thick penis. It turned out that it could no longer be contained in my small swim trunks and had somehow escaped.

Since I wasn't mentally prepared and hadn't expected my brother-in-law to expose his penis in the pool, I cried out and broke free from his embrace, swimming away. When I looked back and saw him, he didn't chase after me; his expression was one of astonishment and a wry smile. I could only give him a wry smile in return, but I didn't swim back to him, because the noise might have alerted others. Although my brother-in-law's teasing had been very pleasurable, I couldn't very well make love in public.

So I straightened my swimsuit, ignored him, and swam to the other side. When I got out, my legs still felt a little sore.

I ran outside, found my sister, and lay down next to her to rest, finally calming down. Because I hadn't slept well the night before, I drifted off to sleep.

My sister woke me up and told me that my brother-in-law had gone to the gym and that I didn't need to see him again. I didn't see him again until that evening, and we both pretended nothing had happened.

Lying alone in bed that night, I unexpectedly recalled the passionate scene with my brother-in-law at the swimming pool earlier that day, and my face flushed red, my heart pounding. I only remembered his strong chest pressed against my back, his powerful arms holding me close, and his maddening hands roaming all over my body. I felt my body growing hotter and hotter, and finally, I couldn't resist the urge to peek at my sister and brother-in-law making love again.

When I cautiously approached their bedroom door, I found it tightly closed, and it was completely silent inside. I stood there for a long time, feeling utterly discouraged. It seemed there wouldn't be any passionate scenes tonight.

Suddenly, I thought of my brother-in-law's swim trunks and wondered how they concealed his large penis. So I went to the bathroom and easily found his black and white swim trunks among the pile of clothes. I held them in my hands, admiring them closely, imagining the space inside and what his penis might be hiding there. However, since they had been soaked in water, they now only smelled of pool water.

In a fleeting glance, I spotted a pair of men's underwear in the pile of clothes. This could only have been worn by my brother-in-law. I picked it up and examined it with great delight. It was a sports pair of underwear, probably worn by my brother-in-law for exercising. Because it was designed for ease of movement, very little fabric was used, especially around the thighs, where only the elastic waistband was visible, allowing for greater freedom of movement of the thighs.

The underwear resembled a thick rubber band, with a triangular piece of fabric added to the back to cover the buttocks, and a cloth pocket in the middle of the front to conceal a penis. The underwear used even less fabric than swim trunks, and of course, looked even sexier. I couldn't resist bringing it to my nose and smelling it; it was a strong, masculine scent of sweat and pungent odor, which completely captivated me. I grabbed it and quickly ran back to my room.

Holding my brother-in-law's underwear, I lay on the bed, carefully examining it, even putting my fist inside to make my crotch bulge, imagining a thick penis inside, ready to burst out. I couldn't resist rubbing it against my face, inhaling the strong masculine scent. But this only made me extremely aroused, desperately needing the comfort of a strong man. My body was incredibly uncomfortable; it was all my fault for being so cowardly at the pool that day, otherwise I might have already tasted my brother-in-law's penis.

I remembered that my hand had touched my brother-in-law's penis for a moment, but I hadn't really felt it. Now I only vaguely remembered that his penis was burning hot, and very thick, so thick that one hand couldn't possibly encircle it. How much I needed that penis now!

Gradually, I started running my hand, which had touched his penis, all over my body, fantasizing about my brother-in-law's caresses. I even took off my underwear and stroked my bare vulva, but that feeling was so different from my brother-in-law's touch. When my brother-in-law's hands caressed my breasts and vulva, I could still feel the roughness of his skin, a feeling that I couldn't replace now.

In the end, I could only use my brother-in-law's underwear to rub my vulva repeatedly to get a little comfort, and his underwear became soaked with my vaginal fluid.

I can't remember how I fell asleep that night. When I woke up the next day, my sister and brother-in-law had already gone to work, leaving me alone at home. I didn't put my underwear back on, still just wearing that loose t-shirt, and went out of the room.

I put my brother-in-law's underwear back in the bathroom, and after washing up, I unexpectedly went into my sister and brother-in-law's room, probably wanting to see if there were any signs of them having sex the night before. I saw that the bed was hastily made, probably because they rushed to work that morning. I lifted the covers, and there was nothing special on the slightly wrinkled sheets. I felt a little disappointed. Looking at the empty bed, I recalled the scene of peeping at my sister and brother-in-law having sex that night. Was my sister lying in this spot, enjoying my brother-in-law's thrusts? I couldn't help but lie down on my sister's bed, fantasizing that I had transformed into my sister, welcoming the thrusts of that penis.

At that moment, I felt the lingering warmth of the sheets and faintly smelled my brother-in-law's scent in the bed. This made me feel restless and unable to control myself. My body twisted and turned on the bed, and finally, my hand couldn't help but reach for my empty vulva.

Just then, a voice suddenly came from beside the door: "Little beauty, what are you doing?"

I was startled and immediately sat up, pulling my t-shirt up to almost my knees. I looked up and saw my brother-in-law standing by the door in a neat suit, looking at me with an ambiguous smile. I wondered when he had arrived and whether he had seen my embarrassing state just now.

"I... I didn't sleep well in the guest room bed, so I thought I'd rest here for a bit."

"Really? That's great, just lie down here however you like. Shall I keep you company?"

"Well... that's fine too, but brother-in-law, aren't you supposed to be at work?"

"After I dropped your sister off at work, I called the company and asked for a day off."

"Why?"

"To come back and see my little beauty, to see if there's anything I can help with."

"What can I help with!"

"If there's nothing, then I need to rest myself."

Actually, we both knew perfectly well what the other was thinking, but neither of us said anything, so I could only quietly watch how things unfolded.

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