Girlfriend becomes sister-in-law

It's been exactly seven years since I married my wife, Xiaoqian. I canceled all my work commitments to spend this vacation with her in Sanya. Lying on the beach, with my beautiful wife in my arms, this is pure bliss.

Watching the waves crash against the shore, I saw two boys and two girls, all around eighteen or nineteen years old, chasing and playing, making it hard to tell who was a couple. A gentle breeze blew, and suddenly, I remembered some things from the past. Back then, my wife was my then-girlfriend's older sister, and my then-girlfriend is now my sister-in-law.

I had just graduated from university and had been dating my girlfriend, Xiaoyue, for four years, from freshman to senior year.

We'd been intimate for four years, practically worn out by my lovemaking.

Graduation season is also known as breakup season, but Xiaoyue and I were still inseparable. Xiaoyue was worried, afraid I'd run away. She didn't even let me go home; she packed me up and took me directly to her hometown, a beautiful seaside town.

Xiaoyue's family was considered middle-class; they were an average family in the area where she studied, but wealthy in that small town.

It was here that I met my girlfriend's older sister, Xiaoqian, my current wife, who is two years older than both Xiaoyue and me. Tall and slender, with a graceful figure, she exuded the unique aura of a mature woman.

Unlike Xiaoyue's cuteness, charm, and immaturity, Xiaoqian was mature, composed, well-mannered, and elegant, even possessing a subtle ethereal quality reminiscent of actresses like Zhao Yazhi and Liu Yifei.

This time, Xiaoqian brought her boyfriend, Xiaojun, back with her. He was tall, scholarly, and handsome—definitely better looking than me.

Perhaps to win over her sister, Xiaojun seemed quite attentive to his future sister-in-law. Coincidentally, Xiaoyue also greatly admired her future brother-in-law. So, Xiaoyue clung to Xiaojun the moment she saw him. Anyone who didn't know better would think Xiaojun was her boyfriend.

Even back in our sophomore year of college, Xiaoyue would frequently praise her future brother-in-law to me. She was so considerate, so knowledgeable, so handsome on basketball—basically, she was perfect in every way, the best in the world.

It made me a little jealous, so I occasionally asked her if she liked her future brother-in-law. At first, she wouldn't admit it, but later, when I was getting really into it in bed, I interrogated her, and she finally confessed. It turned out Xiaoyue had a crush on her brother-in-law, Xiaojun, which made me incredibly jealous. For some reason, I said to Xiaoyue, "How about we break up your sister and brother-in-law? You can have your brother-in-law, and I'll have your sister, what do you say?"

Surprisingly, this girl agreed, even saying, "That's a good idea."

I was both amused and exasperated, and could only vent my anger on her body. Seven times a night, until her vagina was swollen, and she didn't let me touch her for a month.

Xiaoyue seemed to realize that her feelings for her brother-in-law made me jealous, making me even more vigorous in bed, and she would even bring up her brother-in-law to provoke me. I don't know what I was thinking, but I actually fell for her act. She aroused me, and I even pretended to be her brother-in-law: "Little girl, they say a sister-in-law has half a brother-in-law's ass. Today, let your brother-in-law use half of yours!"

My girlfriend, Xiaoyue, immediately perked up, pretending to say "no" while swaying her hips and acting incredibly lewd. Her vagina was gushing with fluids like it was free.

Under my relentless thrusting, she experienced multiple orgasms, finally shouting, "Brother-in-law, my sister-in-law's is tighter and tenderer than my sister's, right?! Fuck your sister-in-law to death! My sister-in-law's pussy is yours now!"

Instead of being angry, I was pushed to orgasm by Xiaoyue's vagina… and ejaculated.

Anyway, this brother-in-law and sister-in-law joke became a daily part of my sex life with Xiaoyue. Later, it spawned into unspeakable things between me and my girlfriend's sister—let's imagine it to the fullest extent. It has to be said that role-playing is indeed very exciting, injecting fresh excitement into our increasingly mundane sex life and greatly increasing our interest in each other.

Arriving in a seaside city during the sweltering summer, swimming in the sea is inevitable. It's a way to cool off and also a legitimate way to feast our eyes.

Unfortunately, this place is mainly focused on fishing and fish farming, with absolutely no tourist resort facilities. So, while there are beaches, they are pristine and undeveloped, attracting very few visitors.

Moreover, I discovered a secret here: my girlfriend, Xiaoyue, who grew up by the sea (her home is less than three kilometers from the beach), is completely unable to swim. Quite unexpected! Her sister and brother-in-law are both excellent swimmers, and her brother-in-law is even a part-time swimming coach.

When Xiaoyue heard that her brother-in-law was a swimming coach, her eyes lit up. Suddenly, her eyes lit up as she ran over, grabbed her brother-in-law's arm, and sweetly begged him to teach her.

Her brother-in-law looked at the girl rubbing her breasts against his arm, then at his sister, his expression quite complex.

My older sister shook her head helplessly and said, "My little sister has never been interested in swimming, so I never taught her.

Since she wants to learn today, you can teach her."

Seeing that my sister had said that, I said helplessly, "Okay then! I'll teach your sister. You and your brother-in-law go swim in the sea. Be careful!"

I really admire my girlfriend's ability to pester me; even my brother-in-law was blushing a little from her. If I'm not mistaken, his lower body was also getting a little erect. No wonder he wanted my sister and me to go swim. He was afraid his girlfriend would see his embarrassing state later. It seems that my brother-in-law is also a little interested in my girlfriend.

You're interested in my girlfriend, and I'm interested in yours; neither of us loses out. Anyway, nothing too outrageous will happen in this kind of situation. I'm not that petty.

Before I went into the water, I teased Xiaoyue, saying, "Brother-in-law and sister-in-law! Learn well and teach (interact) well!"

My girlfriend Xiaoyue immediately understood my unspoken meaning, blushing and sticking out her tongue at me. However, I felt that her rosy cheeks weren't from shyness, but rather from the passion we felt during foreplay.

Since it was a teaching session, physical contact was inevitable, even hugging and cuddling.

After swimming around in the shallow water, I glanced at her and saw my brother-in-law supporting his girlfriend's waist. Xiaoyue swallowed a few mouthfuls of seawater and became flustered, kicking her arms and legs. Her brother-in-law picked her up. However, whether intentionally or not, his right hand grasped half of her breast.

Although I was very jealous, my heart was inexplicably pounding, and I felt very excited. I thought, although my girlfriend and I had played the roles of brother-in-law and aunt so many times during sex, today, wouldn't my girlfriend take this opportunity to actually do something?

In front of us, at most she would be touched all over her body, which wasn't a big deal. But if my girlfriend's sister and I were a little further away, this little girl might get bolder and actively seduce her brother-in-law. If her brother-in-law also found his sister-in-law attractive, something might actually happen.

Thinking about the role-playing scenarios my girlfriend and I used to have, it would be quite exciting if it actually happened between her and her brother-in-law. Oh well, I'll give her the chance. I'll see how I punish her when we get home tonight.

I'm not a real man if I don't fuck her so hard she can't get out of bed for two weeks.

I decided not to look at them and swam towards her sister.

That's when I noticed that her swimsuit, which seemed plain at first glance, looked completely different after getting wet. The three-point swimsuit clung tightly to her body, revealing her perfect curves. She looked like a beauty emerging from a bath, sexy and alluring.

The white and pink stripes on her chest were quite adorable, but the most striking feature was the two small protrusions on her breasts. The white fabric between her legs seemed almost transparent when wet, revealing a dark patch underneath. Even more alluring, the fabric tightly bound her, outlining her labia as if they were camel toes, sparking the imagination.

Judging from her swimming style, she must have had serious professional training; one moment she was doing butterfly, the next backstroke, like a water sprite, absolutely beautiful.

I thought to myself, since my girlfriend is playing the role of sister-in-law and brother-in-law over there, I won't hold back and play along with the ambiguous relationship between brother-in-law and sister-in-law.

I swam to my sister's side and said, "Sis, swimming around on this shore is so boring. See that reef over there? Want to have a race to see who can swim faster? Whoever comes last treats tonight, okay?"

My sister laughed and said, "That reef?! We used to go there all the time when we were little. Come to think of it, it's been so long since I've been there. I really miss it. It's high tide now, by the time we get there, it'll be almost gone, just the tip. I grew up in the water, unlike my sister, your landlubber girlfriend. You can't renege on your promise if you lose!"

With that, she pushed off and shot off quite a distance. I wasn't going to be outdone, so I chased after her. I haven't had any professional training, and my swimming style isn't very good. Unlike my sister, I don't swim as gracefully as she does, nor am I fast or tiring. However, I have the advantage of regular exercise, so I'm strong and have plenty of energy. We each had our own strengths, and we were surprisingly evenly matched, sometimes she was in front, sometimes I was ahead.

Looking at my wristband, I realized we'd been swimming for over twenty minutes. The beach had become a mere line, and my girlfriend and brother-in-law were just blurry silhouettes. What they were doing was completely out of sight.

Suddenly, my sister, who was lagging behind, cried out. I quickly swam back to her.

She frowned, saying in pain, "My right leg is cramping, help me."

For someone who swims regularly, a leg cramp isn't usually a serious problem. But we were quite far from the shore, and there wasn't a single boat around. If it wasn't handled properly, it could be a real headache.

I quickly said, "I'll fix it for you right away. Lie on your back in the water."

With that, I dove underwater, scooped up my sister's right leg, and brought it above the surface. I said to her, "It hurts a little, bear with it."

I straightened her leg and pressed down on her little foot. My sister's legs were white, slender, and smooth to the touch; her little feet were plump and chubby, and I couldn't resist touching them.

"Ah… um… oh…" my sister groaned in pain.

I hadn't thought much of massaging my sister's feet before; they were just beautiful, delicate legs. But as she let out those heavenly moans, I couldn't help but recall those erotic moments with my girlfriend in bed, especially her role-playing as her sister and me, her brother-in-law, having an affair. My mind was filled with wicked thoughts that

I couldn't stop. After all, my girlfriend's sister was so alluring, and the more I looked, the more I couldn't take my eyes off her, let alone my hands. After a while, the pain on her face disappeared, and I knew her leg cramps were gone, so I should let go. But I couldn't let go of that supple, magically beautiful leg. I stopped pressing hard and instead massaged it gently, without any force, just going through the motions. I held her little feet in my hands like precious treasures, while my hand, supporting her thigh, slowly rubbed upwards, almost reaching her groin.

After a long while, my sister whispered, "Um... I... I'm fine now. We... we're not... done yet."

With that, she pulled her leg back and swam towards the island. I saw her face was very red.

After swimming for another ten minutes or so, we finally reached the vicinity of the reef. Just as my sister had said, it looked large from the shore, but with the rising tide, there wasn't much left by the time we got there. There was a platform on it, worn smooth; it seemed like people often came here.

I swam ahead and arrived first, climbed up, sat down, and let out a long sigh. I said to my girlfriend's sister, "Even you, the legitimate soldier, couldn't beat this country bumpkin. Dinner's on you! Thanks!"

"Come on! Pull me up!" my sister reached out, asking me to pull her up. "It's just a meal! What's the big deal? I'll make Xiao Jun bleed."

I pulled my sister up, but only the area under my buttocks was smooth enough to sit on.

The rest was either full of sharp spikes or uneven.

I was about to get up and offer my sister a seat, but then I suddenly thought of my girlfriend and her brother-in-law, several kilometers away on the coast. I wondered how far things had progressed, how much my girlfriend had been taken advantage of, and whether they'd even reached home base yet.

But if I didn't get something back from my girlfriend's sister, I'd be at a huge disadvantage.

Thinking this, I sat back down, having already lifted my butt, and said to my sister standing next to me, "Sister, look, you have nowhere to sit. Even where you're standing is uncomfortable. Why don't you sit on my lap?"

My sister looked at me, then at where she was standing. Perhaps it really was uncomfortable, because her little feet unconsciously moved closer to me, pressing against me, and she said sullenly, "Are you even a man? Can't you get up and let me sit for a while?"

I cried out in protest, "Sister! I invited you to sit on my lap. It's much more comfortable here than on the ground."

"You pervert! I'm going to tell my sister when we get back! Can't you be a little more gentlemanly? What does my sister see in you?

You're not manly at all!" I shrugged indifferently and said, "Go ahead! My girlfriend knows me. Don't you know? Your sister likes my perverted side. She's into that. Besides, your sister knows best whether I'm a man or not, otherwise why would she like me? My sister wants to know if I'm a man or not too?"

"You?!" My sister blushed and fumed at my words.

I patted my thigh and said, "Sis, don't hurt your legs. It hurts me to see them like this. Swimming here must be really tiring, and we have to swim back soon. I need to rest too. If something happens to me, your sister will be widowed! Just make do with this seat. Or you can sit on the rock, and I'll sit on your lap?"

"Pah! If something happens to you, I'll find my sister a better one!" My sister said angrily. "You want to sit on my lap? Dream on. Be my cushion."

With that, she turned around and sat on my lap. I have to say, my sister was definitely more attractive than her sister. Just the feel and elasticity of her buttocks were something my sister couldn't compare to. What's worse, my sister was sitting a bit too close to my groin, and her left buttock was slightly rubbing against my genitals. This subtle touch, this feeling of almost touching but not quite touching, was so tempting that my penis uncontrollably hardened, pressing straight against my sister's pert buttocks.

"You pervert!" my sister whined, her face flushed as if she had a fever. However, she didn't move, letting my penis press against her buttocks.

Seeing that I had a chance, I reached out and wrapped my arms around my sister's waist. To make it seem as natural as possible, I imagined that it wasn't my sister sitting on my lap, but my petite girlfriend. To my surprise, my sister didn't resist, but let me hold her slender waist.

So I took advantage of the situation and pulled my sister tightly into my arms, my chest pressed tightly against her back. Flesh against flesh, I felt my sister's body temperature, her delicate skin, and I could vaguely feel her increasingly rapid heartbeat.

Of course, with my chest pressed tightly against my sister's back, she could clearly feel my wildly beating heart and my burning desire.

"Damn it! That's enough! How could my sister possibly be interested in you?!" the older sister whispered.

I was secretly delighted. If my sister had shouted these words, I might have hesitated to let go. But there was no one else around, and she was saying it so quietly; I'd be a fool to let go. This was telling me to keep teasing her!

"Not enough! My dear wife! Your sister, my dear wife, just loves it when I do this. You don't know, when we make love, she loves to pretend you're doing it with me," I said with a grin. My hands roamed over my sister's lower abdomen and the lower edge of her breasts. I moved my lower body, slowly sliding it over my sister's buttocks.

"You?! Pervert! Who said you're my dear wife! Don't talk nonsense, my sister wouldn't be that lewd!!" my sister raised her voice, speaking firmly.

"No! No! No! You're the one who knows your sister the least! Your labia minora are larger on the left and smaller on the right, while your sister's are the opposite. You have a red mole on the upper right side of your anus. Am I right? How do I know?

Your sister told me," I said with a grin, my hands groping wantonly.

"You're talking nonsense! My sister wouldn't... she... she wouldn't. You... you... you peeked at me changing clothes?!" My sister stared at me, her eyes wide.

"Peeped at you changing clothes?! How could I see that your labia minora are different sizes? It's not like I was watching you masturbate!

When you're changing clothes, you spread your legs and flip your labia minora open and play around with them?"

"You... you! You pervert!" My sister slapped my leg angrily.

"And, when we have sex, do you know who your sister likes me to pretend to be? Her future brother-in-law, your boyfriend. The way she screams about her brother-in-law being fucked to orgasm is so lewd! And, and, do you know why I call you my 'Big Wife'? It was your sister who gave you that name. She said if I allow her to actually have sex with her brother-in-law once, she'll make you my 'Big Wife'." I hugged my sister tightly and whispered teasingly in her ear. My breath hit her ear, making it bright red.

"You! You're all no good! Get lost!" my sister said, forcefully prying my hands away.

I didn't want to be too forceful with her; it was just for fun, to take advantage of her a little. If I really forced myself on her, it would be rape, which is illegal and would ruin the fun. But I didn't give up.

My hand, which had been pried open, arced through the air before falling and touching my sister's fair, smooth thigh. My hand rested quietly on her thigh. My sister didn't resist, nor did she seem to want to pry it away; her chest heaved violently as she huffed and puffed. I began to carefully caress her thigh, glancing at her expression out of the corner of my eye.

Sisters should be similar. My girlfriend's inner thighs were her sensitive area; if I caressed there, she would soon be panting and eagerly responding to my advances. At this moment, my sister seemed to be doing something similar. Although she was still panting, something else gradually crept into her angry expression.

She bit her lip lightly, as if she was enduring and suppressing something.

It was a sweltering summer day. My sister sat on my lap, my penis pressing against her beautiful figure, my hands caressing the inside of her thighs, almost to her labia. In this environment, in this posture, in this ambiguous atmosphere, I knew my sister's body was starting to stir.

I saw her biting her lip until it left teeth marks. I thought her primal desires had been aroused, but her reason was fighting a constant struggle. I noticed her muscles were tense, her breathing somewhat erratic.

Suddenly, she let out a long breath. Then, her tense muscles relaxed, and she closed her eyes. She only said one sentence: "Don't go too far!"

I smiled slightly. They really are sisters; that's what my girlfriend said to me the first time I slept with her.

Reluctantly, I pulled one hand from her thigh, sliding it down to her ankle. I pulled one of her legs, turning her around to face me, so she straddled my lap. As soon as I looked down, my eyes were captivated. Unlike my girlfriend, my older sister had a fuller bust

. Beneath her bra-like swimsuit, the outline of her breasts was clear, defined, and alluring, especially her two prominent nipples, which were particularly eye-catching. It made my heart race.

I slowly caressed and savored her small feet, ankles, and calves, observing her reaction. She clearly sensed my actions, but she didn't speak up, didn't pull away, and didn't slap away my groping hands. It seemed she acquiesced to my actions.

Things were looking up! So, I became bolder and more probing. One hand slowly moved from her calf to her thigh, cautiously exploring the inner thigh. My other hand touched her slender waist, stroking her beautiful back, carefully approaching her breasts.

After a while, her face turned even redder, and her breathing became more rapid. It seemed she also sensed what I wanted to do. She didn't stop me! I relaxed and began to explore without restraint.

My hand slipped under my sister's swimsuit from behind, sliding to the front and grasping the enormous breasts I'd always dreamed of. Perfect!

The size was incomparable to anything my girlfriend had. It felt like kneading dough. Big is so amazing! Heaven! Here I come!

My hand wasn't idle either, moving to the inside of her thighs—that was the real focus, the main course. My hand moved to the groin, caressing the cleft. Strictly speaking, this was the edge of her labia. It's a sensitive area for women, a taboo subject. But my sister didn't stop me.

So, I steeled myself, parted the edge of her swim trunks, and slipped my fingers inside, touching her genitals.

So hot! So wet! So slippery! Unlike the stickiness of seawater, this was as smooth as egg white—definitely her virginity. It turned out my sister was already aroused. Why should I be cautious? Why be polite? Not moving forward would be incredibly ungrateful.

I looked at my shy older sister with smug satisfaction, like a delicious meal waiting to be enjoyed. Darling! I'm coming!

My sister instinctively swayed her waist and buttocks, rubbing against my genitals and legs, further arousing my desire. My index finger involuntarily slipped into her vulva. My sister immediately tightened her legs. However, her vulva was thoroughly lubricated, and my index finger easily slipped into her.

"Ah…", my sister moaned. She became excited under my finger. This spurred me to work even harder inside her. Sometimes I teased her clitoris, sometimes I flicked at the entrance. The tight, gripping sensation, the pleasurable pleasure, excited me so much that it felt as if my penis was already inside.

I found the right position and angle, my fingertip breaking through the walls and piercing into an even wetter, hotter place.

"Ah…", with my insertion, my sister moaned loudly, incredibly alluring.

My finger below was thrusting in and out of her vulva with a "plop plop" sound. I pulled my hand out of her bra, cupped her head, and kissed her delicate lips. For a moment, she flinched, then responded shyly and passionately.

We kissed passionately

, smacking our lips. The more we kissed, the more passionate we became, and the harder I got. Our desire intensified with each kiss. Finally, I couldn't resist stopping the kiss, pulling my hand away from her genitals, and started to pull down my underwear.

She pressed my hand down, saying, "It's getting late, we should go back."

Her hand was only on the back of my hand, not really pressing down, so my underwear quickly went down to my thighs. My penis sprang out, swaying predatorily, pointing directly at her genitals.

I grabbed her hand and pulled my burning erection, pleading, "Can you feel it?! It's telling me it wants it."

My sister turned her head to look towards the shore, biting her lip, saying nothing. I think she wanted it too, but couldn't overcome her own hurdle.

I knew I couldn't force her now; I could only wait. I gently held her hand and slowly stroked my penis, saying softly, "Just once, just once. I'd die for it."

After a while, my sister softly said, "No...no..."

"Sister...good sister...just give it to me...just once...just once..." I pleaded in a low voice, kissing her neck and holding her hand to stroke my penis faster.

"Really no! Letting your fingers do it a couple of times is the limit," my sister said firmly.

I didn't dare force her, but I didn't compromise either. My sister said letting my fingers do it a couple of times was the limit, so I'll just stay within that limit for now. My fingers went into my sister's vagina again, "plop plop" in and out, teasing her desire.

I could tell my sister was very comfortable and enjoying my fingers' service. Slowly, she began to wriggle and twist her body, cooperating with the thrusting of my fingers. And the hand I held also began to actively stroke my penis.

"You can't go in!" my sister gasped, staring at me, waiting for my answer.

"Okay!" I nodded in reply.

"I'm serious. If you dare, I'll accuse you of rape," my sister said earnestly.

"I want you because I like you. How could I do something you don't like if I like you?" I replied earnestly as well.

"Okay!" my sister said, wrapping her arms around my neck and kissing my lips. We kissed passionately.

Our tongues intertwined, saliva dripping from the corners of our mouths.

I pulled my sister's swimsuit down to almost her shoulders, revealing a pair of large, white breasts, which I bit into, licking, sucking, and grinding them in my mouth. My sister closed her eyes, moaning ecstatically, enjoying my caresses.

I didn't test my sister's limits any further; I didn't want to lose this beautiful moment. Although there was no actual penetration, everything else was done. Besides, my fingers were inside, weren't they?

"Mmm..."

"Ah..."

We both reached orgasm. My sister peed on my leg, and I ejaculated all over her. The first spurt of semen landed on her snow-white breasts. This stimulated me, and I smeared my semen all over her breasts. My sister's breasts were so big; thankfully, I had plenty of semen.

My sister leaned weakly on my shoulder, letting me play with her soft breasts.

Only when her breathing calmed down did she shyly release her hands from my penis and say bashfully, "Um, we have to go back."

I nodded and said, "Yeah!" I

reluctantly helped her put on her swimsuit, actually wanting to let the semen stay on her breasts a little longer.

I also took the opportunity to touch her genitals with my semen-covered hands; it was so stimulating. I wondered if such a wet touch would get her pregnant.

After getting into the water, my sister deliberately kept her distance from me. I swam behind her, admiring her graceful figure.

We remained silent the whole way. Just as we reached the shore, my sister suddenly stopped. I swam over to her and saw my brother-in-law teaching his girlfriend to swim, his back to us. She was floating face down, her legs spread and wrapped around his waist, while he held her thighs to keep her from sinking. The posture was somewhat suggestive, but it was normal for teaching swimming.

I was about to greet them when my sister stopped me, putting her index finger to her lips, telling me to be quiet. Then, she quietly approached them.

As we got closer, I realized something was amiss. On the surface, my brother-in-law was teaching his girlfriend to swim, and he seemed very serious and dedicated.

However, as the tide rose and fell, I noticed that the crotch covers of both their underwear were pulled to one side, revealing glimpses of his girlfriend's pink genitals and his dark genitals. Even worse, when my sister and I carefully changed our angle, we saw my brother-in-law's penis inside my girlfriend's vagina, moving in and out with the waves. While he was bending down to teach my girlfriend hand positions, he was actually reaching under her swimsuit in the water to fondle her breasts.

This brother-in-law and sister-in-law, in full view of everyone, were having a rather elegant and exciting time. My sister

stared intently at the two men before her—her own sister and her future husband.

Ouch! My sister gripped my arm, her nails almost digging into her flesh. She bit her lip until it was bloodless.

Finally, she whispered, "Let's go!"

and swam away without looking back. I quickly followed.

Behind us, I heard my girlfriend and brother-in-law's voices.

"Faster...faster..."

"Ah..."

They must have climaxed. What a pair of adulterers, their first time making love and they were so well-coordinated, both climaxing at the same time.

I couldn't help but look back. Just then, I saw my brother-in-law pull his penis out of my girlfriend's body. Semen flowed from my girlfriend's pink, slightly parted vulva, white and viscous, floating on the azure sea, particularly glaring and lewd.

That night, the four of us stayed in the west wing, each with our own room.

In the middle of the night, I was tossing and turning, unable to sleep, my penis erect. I decided to get up and go find that bitch of a girlfriend for a quickie. Even though she'd slept with my brother-in-law and become a used woman, she was still good for satisfying my lust.

Outside my girlfriend's door, the door wasn't closed tightly, leaving a considerable gap. From inside came moans that aroused my lust, and the sound of the bed shaking, so lewd, yet so familiar. It was the wanton moaning of my slutty girlfriend. In the past, I would listen to this sound while thrusting, but now, I could only watch from outside the door, the one thrusting his hips now being her brother-in-law.

Although I intentionally gave them the chance, listening to my girlfriend's unusually sweet, sticky, and delicate voice was so grating. It felt like every sound was stabbing into my heart. If the beach was a chance for his girlfriend to fulfill her dream, then her current behavior of taking advantage of him makes her a despicable bitch.

"Sweetheart, you're so beautiful! Have you not made love with your boyfriend for several days? This is the third time, and you're still so horny down there, your juices are all over my legs. Is your boyfriend impotent?"

"Oh! Push up a little. Oh! Right there! So good! My boyfriend, he's not impotent!

Whenever he wants, he'll fuck me until I can't get out of bed before he stops. I knew my brother-in-law was coming back, so I deliberately didn't let him touch me for a week. I kept myself horny to seduce him."

"I didn't expect I'd been interested in you all along, did I?"

"Yeah, you bet. If I'd known earlier, I would have swallowed your big cock long ago. My brother-in-law's big cock is so good! Oh..."

"Sweetie, if your boyfriend heard you say that, he'd be furious!"

"No way! When we make love, he often pretends to be you and fucks me. I didn't expect to actually do it with my brother-in-law today. I don't think he'll mind me and my brother-in-law."

"Your boyfriend is really adventurous! But what if he's just faking it, having fun for the thrill, and you go for real, and he dumps you? What then?"

"At worst, you can lend my sister to my boyfriend. Besides, since he doesn't want me anymore, I can be with my brother-in-law anyway."

"You little slut, your brother-in-law loves your flirtatious nature. You're so wanton I don't even want your sister anymore, let's just be together."

"Okay! Okay! I love my brother-in-law, and he loves me too! Oh! That's great! Brother-in-law! Brother-in-law! Push harder! Oh! Right there! Harder! My little flower feels so good! Ah! Oh!"

"If you're with me, your family…"

"I don't know, but I know I really want to be with my brother-in-law. Being together doesn't necessarily mean marriage. Marriage, weddings, etc., are just formalities. As long as I can be with my brother-in-law, I don't care about any of that. As long as you love me, and I love you, that's enough!" "

You mean… even if I can't marry you, you're still willing to be with me, isn't that…?"

"Be your mistress, be your third party! I'll marry my boyfriend, but my heart and body belong to my brother-in-law."

Good heavens! Is this still my girlfriend?! This is a shameless bitch! What's so great about her brother-in-law that she treats him like a slave girl or a bitch?! And she says his "heart and body belong to him"?! Pah!

I must have been blind to see this slut so clearly after being with her for so long!

"Then, can I call you wife?! My little darling!"

"Yes! Yes! Husband! Hurry! Call me!"

"Wife..."

"Husband..."

"Wife..."

"Husband... Oh... It's so beautiful! Like a dream! Husband! Harder! Fuck me! **** Husband!

My darling husband! Fuck me to death!"

"My wife, I love you to death! I don't want your sister anymore, I only want you! I don't want you to be my lover, nor do I want you to be my mistress, I only want you to be my real wife! I'll marry you and fuck your little cunt every day in bed! It's so good!"

"Oh! Brother-in-law, no, husband! You're so bad, you only went to other women to fuck their little cunts. If there were better cunts, wouldn't you have abandoned me too!"

"No! A man should be faithful to one woman. Once I've fucked your cunt, I'll only recognize your little cunt!"

"Hmph! That sounds nice, you and your sister..."

"Your sister has never let me touch you. You're my first woman! Don't worry, my penis will only ever be inside your little cunt."

"Hmph! That's more like it. Oh! Brother-in-law, husband! It feels so good! Your penis head is so good at thrusting! So sore! So numb! It's going to break! Ah..."

Watching my brother-in-law's penis thrust in and out of my girlfriend's vagina like a pile driver, my heart was bleeding. I really regretted the role-playing game I played with my girlfriend before, and even more regretted giving them that opportunity at the swimming pool. I'm really not the kind of person who would cuckold my wife!

My sister's eyes were fixed on the point where her sister and boyfriend's genitals were joined, their vaginas and penises joined together without a single gap. My sister bit her lip hard, almost until it bled, her breasts heaving violently.

Suddenly, my sister shifted her gaze to me. It made me a little uneasy. I said to my sister in a low and cautious voice, "Um... this... um! Sis! Um... they... we... let's not look anymore, let's go back to sleep.

It's not good to make a scene in the old folks' house."

My sister sighed, shook her head, turned and waved her hand, and walked towards her room.

Just as her sister opened the door, her girlfriend let out a high-pitched scream. She had climaxed!

Through the crack in the door, in the moonlight, on the bed, a seductive, obscene scene unfolded. Her brother-in-law had his future sister-in-law pinned beneath him, her soft, pink limbs wrapped around him like vines. They were rolling around in a tangle.

Her brother-in-law's penis thrust rapidly like an electric motor, his face contorted, his hands gripping her shoulders tightly, as if he wanted to crush her shoulder blades.

Her girlfriend's delicate arms were around her brother-in-law's neck, her long, slender legs wrapped tightly around his waist. Her limbs twitched unnaturally, her eyes were vacant, her mouth was wide open, and saliva dripped from the corners of her mouth.

"So beautiful! So good! Brother-in-law! Husband! I'm dying

of pleasure!" "Ah! I'm going to die! Oh my god! It feels so good!"

"Husband"

"

Wife"

"Husband" "Wife"

"I'm dying of pleasure! Ah! I feel it! Brother-in-law, husband, you're inside me! It's so hot! It feels so good and comfortable! Your pussy is twitching so vigorously!" "

You little slut! I'll shoot you to death!"

"Ah..."

My sister gripped the doorknob tightly, biting her lip, a stream of bright red liquid flowing from between her teeth.

I rushed over to comfort her. Unexpectedly, as soon as I reached my sister's side, she let out a soft moan and slumped into my arms. She murmured, "Just because I'm still a virgin! Just because I haven't given myself to him?! Can't I wait until we get married?!"

Virgin?! Didn't I put my fingers inside her during the day? But then I thought, being a virgin doesn't necessarily mean having an intact hymen. Sports, cycling, and injuries can all break a hymen, and of course, masturbation can also rupture it.

I was worried my sister might act impulsively and cause a scene at the old folks' house, which wouldn't be good. I helped her into the room. The air conditioner was on, and a cool breeze was blowing. After a while, my sister calmed down. She clung to me, muttering, "Bastard! Shameless! Unscrupulous! Dogs!" With

such a beautiful woman in my arms, my penis shamefully hardened, pressing against her shapely buttocks once more. Although it was inappropriate, even somewhat lewd, I am, after all, a normal man.

I wiped away her tears. She looked up at me and murmured, "Thank you."

Then, my sister kept staring at me, her gaze growing increasingly strange. Finally, she said to me, "Believe it or not, I'm still a virgin. Your lewd fingers during the day were the first man's thing to enter my body. I want you to take responsibility for me. I know you want it, you were so eager during the day, now I'll give you my body. Little brother, I've never done this before, be gentle with me."

After hearing my sister's confession, my heart pounded with excitement. Then I felt like I was taking advantage of her. But, with my girlfriend and brother-in-law making love, it wouldn't be a loss for me to play the role of a gentleman.

My sister has already said so, why should I pretend? I gently kissed my sister's forehead and said, "Sister, I will be very gentle." "

Don't call me sister, call me Xiaoqian."

"Qian'er."

"Take me!"

I got up, put my sister, no, my Qian'er, on the bed, and lifted her nightgown. Qian'er subconsciously covered her private parts with her hands, her eyes filled with panic.

"Qian'er?" I looked at her questioningly.

She hurriedly turned her head away, avoiding my gaze, her hands trembling and hesitant, before finally looking away.

I carefully lifted her nightgown to her waist, revealing a cute, light pink pair of panties, with a few mischievous pubic hairs peeking out. I leaned closer, and unlike my girlfriend's subtly seductive charm, a delicate, elegant fragrance wafted from her.

On the strip of fabric beneath her panties, a damp, sticky stain remained; Qian'er was aroused.

She lay motionless on the bed, her body tense and unnatural, her eyes closed, trembling.

I kissed her inner thigh and carefully removed her panties. I untied her nightgown, letting it fall loose to her sides. Without a bra, I saw a jade-like body before me, pink and warm, smooth to the touch like a baby's.

A pair of snow-white breasts, two alluring little hickeys. A slender, graceful waist, barely a handful. Long, beautiful legs, smooth and supple. Unlike my girlfriend's somewhat darkened labia, Qian'er's lips were still a tender pink. She said she was a virgin, and it seemed true; her inner self was still a virgin.

I took off my own clothes, leaned down, embraced Qian'er, pressed myself against her, and gently kissed her tender lips. Qian'er's eyes were tightly closed, her eyelashes trembling incessantly. Slowly, her tightly closed lips parted slightly, and I quickly slipped my tongue inside—slippery and sweet. Her little tongue initially dodged and weaved, but under my entanglement, it slowly began to respond shyly. Finally, Qian'er's fiery red lips took the initiative to suckle. We kissed, the sounds of our kisses filling the air.

After

a while, I reluctantly raised my head and asked Qian'er, "Sister Qian'er, I want it, is that alright?"

Qian'er blushed and turned her head away, wiping the saliva from the corner of her mouth, nodding and giving a soft "Mmm."

I felt like I'd received a royal decree. I really wanted to immediately thrust into her, but I knew I couldn't. Qian'er was a virgin, with no sexual experience. We were only together because I'd seen my girlfriend and her boyfriend having an affair. Therefore, I had to be gentle, trying not to hurt her, letting her experience the beauty of sex. And I had to make her feel that I was different from her boyfriend, a hundred times better than him.

So, suppressing my urges, I leaned down and gently bit Qian'er's tender lips, slowly kissing my way down her body.

I licked her sculpted, jade-like neck and delicate shoulders wantonly, leaving a thick, wet layer of my saliva.

Soon, Qian'er's trembling, erect breasts caught my attention. So beautiful! The small, bright red nipple at the center, the round, alluring areola, the pale pink—it was breathtakingly beautiful. I lightly touched her nipple with the tip of my tongue, licking it in circles, finally taking the entire nipple into my mouth. I sucked carefully, afraid it would melt away.

Qian'er let out a soft moan, her trembling arms wrapping around my neck. She bit her lip, trying not to let out a sound.

My hands weren't idle either, caressing Qian'er's lower abdomen and waist. Although she was the older sister, in terms of skin alone, Qian'er seemed more like the younger sister. Her skin, as delicate as a baby's, felt so wonderful to the touch.

One hand roamed over her waist, while the other slowly moved downwards, heading towards Qian'er's peach garden. Taking advantage of Qian'er's dazed state from my sucking, my fingers quietly slipped between her legs, gently sliding over her clitoris. Instantly, Qian'er shuddered as if electrocuted, letting out a piercing cry of "Ah!" She grabbed my head and pressed it forcefully against her chest, her large breasts almost suffocating me.

After only a few teasing touches, Qian'er's clitoris swelled to the size of a grain of rice, round like a pearl.

Qian'er's legs trembled wildly, her hands pulling my head up, her fiery lips attacking mine, kissing me wildly and haphazardly, all her initial reserve and shyness gone.

"Ah..." Qian'er cried out, she had orgasmed. Her lower body convulsed, flowing with warm, sticky, wet fluid.

I gently massaged Qian'er's body to help her regain her strength and better experience the pleasure of orgasm. Then, I parted her legs, knelt between her thighs, and guided my already eager penis into her crevice. The large mushroom head teased back and forth in Qian'er's pink vulva, wetting my penis for easier insertion later.

Sensing my intention to penetrate, Qian'er's body tensed up again, trembling uncontrollably. However, her snow-white thighs spread even wider. I knew Qian'er was mentally prepared for me to enter. But, being a virgin, nervousness was inevitable.

I placed my penis against Qian'er's entrance, carefully applying pressure little by little. Slowly, the head of my penis slid into Qian'er's untouched virgin territory. The sudden intrusion of the foreign object caused her vaginal opening to instinctively grip my penis head tightly, and the vaginal walls contracted and writhed, intensely stimulating the glans that had only penetrated less than halfway.

"It hurts! It hurts! It hurts! Be gentle! I...I...it hurts!" Qian'er cried out in pain, her brows furrowed.

Although there was no resistance when my fingers were inserted, my penis head could now clearly feel the obstruction of her hymen. It seemed my Qian'er's hymen was ring-shaped.

The sensation on my penis was irrefutable proof, and I was overjoyed, as if I had found a treasure. To avoid making my little darling nervous, and to create a beautiful memory of Qian'er's first time, I pulled my penis head out a little, then pushed it in a little more, stimulating her more and providing better lubrication.

When I felt it was about right, taking advantage of Qian'er's relaxed state, I suddenly thrust forward with all my might, my impatient penis head breaking through the hymen, sliding along the smooth flesh wall straight to her depths.

Qian'er, her virginity being deflowered, closed her eyes tightly in pain, her eyelashes trembling, her face twitching constantly, her eyes filled with tears, almost spilling over.

I knew that at this moment, I couldn't pull out my penis out of pity, nor could I start thrusting aggressively. I could only wait, wait for the pain of Qian'er's hymen breaking to subside.

After waiting for three to five minutes, Qian'er slowly opened her eyes, her face streaked with tears, looking incredibly pitiful. She said shyly, "I've given you

my virginity. From now on, you are my man, and I am yours. Don't let me down. Come and cherish me!" After saying that, Qian'er looked up and kissed my lips. The tight walls of her lower body began to move rhythmically, and her baby-like hands rubbed my penis. I couldn't help but start thrusting. However, I tried to control myself gently, after all, Qian'er had just lost her virginity.

I focused more on caressing Qian'er's body. My hands roamed over her naked body, and my mouth kissed her upper body, her lips, behind her ears, her neck, her breasts, and even her armpits.

If my younger sister is a bottle of whiskey, fierce, restless, and unrestrained, then my older sister is a bowl of clear tea, fresh, elegant, beautiful, and graceful, like a noble white lotus. My sister, Qian'er, whom I could only admire from afar, is now beneath me, her cheeks flushed, her eyes brimming with spring, shyly gazing at me.

Qian'er is increasingly proactive in thrusting her hips to match my movements, which puts my mind at ease, allowing me to thrust freely.

Her large, snow-white breasts rise and fall with my thrusts, her nipples constantly brushing against my chest.

Qian'er is indeed a virgin; her vagina is not only small but also incredibly tight. When I was with her younger sister, it took at least half an hour, but after only ten minutes of thrusting, I already felt the urge to ejaculate.

At this moment, Qian'er's vagina suddenly tightens its grip on my penis, writhing rapidly. Qian'er's pert buttocks trembled as she cried out in a seductive voice, "I can't take it anymore! Get up! I need to pee! Hurry! I can't hold it in! It hurts so much! Get up now!" I

was taken aback for a moment, then shook my head and laughed, "Silly Qian'er! You don't need to pee! You're about to have an orgasm! Don't worry!

You won't wet the bed! Don't be nervous! Relax! Experience the orgasm of your first sexual experience! Don't be nervous! Relax! Trust me!" "

Really?! Don't lie to me! This is so strange! I feel like I'm about to pee?!"

"Trust me! It's really not! You can't pee! Relax! Let it go!"

"I really don't need to pee! I... I can't hold it in... Ah... I... I peed..."

Suddenly, a large amount of vaginal fluid gushed out of Qian'er's vagina, soaking my testicles. Her eyes were slightly closed, her eyelashes trembling, and she moaned helplessly.

My penis, drenched and enveloped by Qian'er's vaginal fluid, couldn't hold back any longer. I roared, "Qian'er, I'm coming too! Let's welcome your first shot of semen!"

After saying that, I thrust my penis deep into the depths of Qian'er's vagina, the head of my penis sweeping across Qian'er's cervix, spraying my three hundred million into Qian'er's virgin vagina.

Qian'er whispered sweetly in my ear, "Qian'er... Qian'er is all yours! Qian'er will be your woman from now on! Forever! You are my man too! Now! And always will be!"

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Girlfriend becomes sister-in-law

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