My brother-in-law let my sister into my bed.

page views:1 Publication date:2022-09-28

My brother-in-law made my sister sleep with me. If it's normal for newlyweds to be inseparable and have passionate sex every day, then have you ever seen a couple who, after three years of marriage, treat sex like a daily meal? Yes! Right before my eyes. That's my sister and brother-in-law. I live at my sister's house for convenience, only a five-minute walk from school. My brother-in-law is of medium build, thin and not at all muscular. However, his penis is exceptionally thick, as big as my clenched fist and arm. He's incredibly ravenous when it comes to sex, thrusting his penis into my sister's ass with incredible force. Although he's not my sister's prince charming, it's probably this huge penis that won her heart. Every night they're up very late, making my sister beg for mercy before he'll stop. Often, she'll be limping the next morning. From my description, you can probably guess that I often spies on them having sex. It was Sunday, no school. After breakfast, I studied in my room. Suddenly, I heard a "Ah—", and I knew they were starting again. So, I put down my pen and sneaked to their room. "Ah—hurry up—if you keep going—you'll be late—oh—", my sister gasped. I peeked through the slightly ajar door. My sister was leaning over the computer desk, her skirt pulled up to her waist, revealing her round, snowy buttocks and white thighs. Her buttocks were raised high, and her thin black panties were pulled down to her calves. Especially noticeable was the thick pubic hair between her legs. And the vaginal fluid overflowing from her vulva, squeezed out by his large penis, flowed down her thighs, wetting my brother-in-law's swaying scrotum. My brother-in-law was neatly dressed on top—a white shirt, tie, and suit jacket. But on the bottom, his underwear was hanging down to his knees, and his trousers were about to fall to the ground, dangling from his belt. With each sway of his body, the belt buckle made a crisp sound. His large penis was thrusting forcefully into my sister's vagina, his scrotum slapping against her white buttocks with each stroke. His hands, initially on my sister's buttocks, slowly moved upwards, gripping her slender waist, thrusting her body against his genitals, making the sounds of their bodies colliding even louder. At the same time, my sister's moans became even more seductive. Such a symphony of lovemaking—even if I were in my own room right now, I could hear it. Didn't they consider my feelings? What a pair of people driven mad by love! The brother-in-law asked, "Does this feel good? Want it harder?" The sister, panting, replied, "Oh—ah—good—so good—husband—you're so good at it—that's good—harder—it'll break down down there—ah—" The brother-in-law chuckled wickedly, "But I heard that when a woman says no, she actually means yes." As he spoke, he suddenly thrust even harder. The sound of flesh slapping against flesh was so loud that it echoed in the room. The sister, startled by the sudden stimulation, screamed, "Husband—bad husband—stinky husband—down there—it really can't take it anymore—it's going to break down—please—slower—ah—I'm going to die—" As she spoke, her legs trembled violently, and a large amount of fluid gushed out between her legs, flowing down her two white thighs and forming a large puddle on the floor. The brother-in-law smugly helped his sister up and placed her on the bed, smiling as he said, "You said no, but you're so turned on you've wet yourself! Isn't your big cock amazing?" The sister glared at her brother-in-law, weakly slapping his large penis, and said, "You bad thing! I feel like you've swollen me up again! I can't wear underwear anymore. I'll have to go to work naked again! Do you know how uncomfortable it is not wearing underwear? It's so cold and I feel so insecure." The brother-in-law leaned down and pressed against his sister's body, saying, "Since we're not wearing underwear anyway, I'm even less polite. One more time." The sister screamed, "No! No! Really! Really! Again! It'll really break down! Ah—you bastard—I'm going to die—" Before she could finish, the brother-in-law, with his fierce member, began to assault her again. While the sister righteously said no, her expression of enjoyment and her ecstatic moans betrayed her. My brother-in-law roughly ripped off my sister's dress. Now, my sister was completely naked, lying on the bed, at his mercy. Her large, full breasts swayed violently with his thrusts. "Ouch—!" my brother-in-law roared, quickly pulling out his penis and vigorously stroking it with his hand, ejaculating, the first stream landing on my sister's breasts. I couldn't help but marvel at the power of his large penis. After he finished on my sister, he had to go to work, and I had to go back to my room. It wouldn't be good if he found out! How could I face my sister after that! But, oh, my sister's pussy is so beautiful! My sister didn't come out of her room until long after my brother-in-law left. Her hair was disheveled, her nightgown was wrinkled, and she walked with an unnatural, awkward gait. As she sat on the sofa with an apple, she couldn't help but groan and furrow her brow. She rested for a while before going to work. Today, my sister will probably be late again. My sister didn't get the perfect attendance bonus last month, and she probably won't get it this month either. Looking at the sofa she'd just sat on, it was all wet—she really wasn't wearing underwear! I brought my nose close and smelled it. This wasn't the first time I'd smelled her vaginal fluid, but every time, her pungent scent excited me. I had to masturbate a couple of times to soothe my stubborn penis. Actually, sometimes I wonder, my brother-in-law works on my sister day and night, but why doesn't her belly show any change? They weren't using condoms! Maybe she's been taking birth control pills, but that's so bad for her health! ********************************************************************************************** They were talking about how inseparable they were, but when I came back from my evening tutoring class, they started giving each other the cold shoulder. They wouldn't even speak to each other! It turned out that when my brother-in-law went to pick up my sister from get off work, he arrived a little early and caught her colleague playfully groping her buttocks. My brother-in-law immediately flew into a rage and caused a scene at my sister's company. The colleague was beaten black and blue, and my brother-in-law himself was also injured. On this point, I agree with my brother-in-law's actions. Anyone who dares to take advantage of my sister deserves to be beaten to a pulp. My sister's anger towards her husband stemmed from this incident; she became the subject of gossip. It could easily become, "Caught cheating on her husband with a male colleague, the lover was beaten to the ground by the husband. It was a terrible situation!" How could she possibly stay at the company after that? They've been giving each other the cold shoulder for a week. Just as I was at a loss and preparing to ask my parents for help, I heard sounds of lovemaking coming from my sister and brother-in-law's room. In the quiet night, the sounds of flesh colliding and my sister's moans of pleasure were exceptionally loud. Unlike usual, this time the cries were filled with the release of pent-up frustration. It was like someone who hadn't eaten for three days wolfing down a meal, or like a farmer weeping with joy after a long drought. In short, my sister and brother-in-law didn't settle down until late at night. Only then could I finally fall asleep. A good portion of the tissues by the bed were gone. However, my brother-in-law is a very chauvinistic man. He often bosses my sister around. Even when she goes out with her best friend, he has to ask her first before he feels comfortable. That night, I got up to pee and passed by their room, hearing them arguing. I listened carefully. Sister: "Take it away! No!" Brother-in-law: "Your period's already over, hasn't it? Look, you didn't even use a panty liner." Sister: "I've already made you come twice! Can you stop being so unreasonable?!" Brother-in-law: "You mean your period hasn't ended yet? Then explain why you didn't use a panty liner!" Sister: "It's almost over! It should be finished tomorrow! Can't I just wait one more day? I'm not using one because the flow is very light, it's unnecessary. Besides, do you know how uncomfortable it is to wear a panty liner? Of course, I'll avoid using one if I can!" Brother-in-law: "That's just making excuses. It's over, it's over. And you say the flow is light, it's unnecessary. We did it today, what's the problem?" Sister: "How can you be like this? Do you think I don't want to do it?!" Brother-in-law: "I think you just don't want to do it, you're deliberately making excuses!" Sister: "Can't a grown man stop being unreasonable?" Brother-in-law: "So what if I'm a grown man? I'll show you what a man is. Since it's inconvenient to do it, let's sleep in separate beds. I don't want to do it with you while I'm half-asleep." Sister: "Separate beds?! Do we have any other beds in our house? Are you telling me to sleep on the floor or the sofa? Huh?! You jerk!" Brother-in-law: "Who said we don't have any! Yes—your brother's room has a double bed. Go sleep with your brother." Sister: "How old is your brother?! How can I sleep with him?!" Brother-in-law: "So what! He's your own brother, not some other man.""What's there to care about? Besides, I don't mind, why should you?!" Sister: "You said it!" Brother-in-law: "I said it!" Sister: "Don't think you're afraid to go!" Brother-in-law: "Go ahead!" Sister: "Don't regret it!" Brother-in-law: "I'm not afraid of you! He's your own brother, not some stranger. What do I have to regret? Don't bother coming out!" Then came the sound of someone getting out of bed and putting on shoes. I quickly went back to my room, turned off the light, and lay down. I thought, is my sister really going to come to my room and sleep with me?! Or is she just saying it out of anger, putting on an act? After all, my sister and I have never slept together in my memory. Soon, I heard the sound of my sister's door opening, followed by my door being pushed open and then closed. With a "creak," my sister sat down on the edge of the bed. I didn't dare to breathe. But after waiting for a long time, my sister didn't make any move. After waiting a while longer, my sister took a deep breath, as if she had made up her mind. She actually crawled into my blanket. I was so scared I didn't dare move. My heart was filled with both surprise and joy. It was indeed a double bed, but I always slept alone. Tonight, however, there were two people sleeping there—me and a beautiful woman, my lovely older sister. The bed, which I could usually roll around in freely, suddenly felt so cramped. I was even afraid to turn over, lest I bump into her. Actually, I wanted to touch her body, even hold her in my arms, but I just didn't dare. She lay facing me, her breath sweet and fragrant, brushing against my shoulder—so sweet! I wanted to lean in and kiss her face, to hold her close. But I couldn't! I turned away, trying to avoid facing her, to reduce my impure thoughts. But I still couldn't sleep! Her breath tickled my back! My penis was already hard! This was probably the first time I'd ever slept in the same bed with a young woman. The bed was filled with her fragrance. When will I have a woman of my own, sleeping with her like I am now with my sister? And then, like my sister and brother-in-law, making love shamelessly every day? "It'll be a long wait!" Suddenly, my sister leaned against my back, pressing her soft, full breasts tightly against my body. Even through two layers of pajamas, the feel of her flesh was amazing. My semi-erect penis immediately twitched excitedly. What a treat! My sister's breasts feel so good! I regretted turning my back to her; if only we were face to face! But what surprised me even more, or rather, what happened next, was even more surprising. My sister "slapped" her hand onto my waist. After a while, her little hand magically lifted my pajamas, rubbing them against my chest, even touching my nipples. This made me both itchy and excited, and my penis became fully erect, creating a large tent in my pants. Then, her little hand slid down, groping around my waist. She mumbled something, indistinct and unintelligible. The groping went lower and lower, eventually reaching inside my underwear and touching my hard penis. My body trembled involuntarily! So good! My sister's hand gripped my penis, kneading it back and forth, sometimes loose, sometimes tight. I felt my glans leaking fluid, sticky and wet. "Ah—," I couldn't help but moan in pleasure. I immediately tried to hold it in. But the increasingly heavy breathing and the whimpering sounds from my nose were unavoidable. If I could tolerate my sister kneading my penis, her hand then touched my scrotum, playing with my testicles. "Ah—oh—," I cried out, both nervous and excited. The most vulnerable part of a man's body being touched—you can imagine the tension. But the feeling of my sister kneading it was so wonderful! So sweet, but I loved it! My sister's two tender legs wrapped around my thighs, her hips rubbing and moving back and forth against my thighs. My sister seemed to be getting aroused, letting out soft moans. Her small hands returned to my penis, stroking it. Was my sister awake now? Or sleepwalking? Or perhaps she mistook me for her brother-in-law? But I couldn't think straight; my mind was completely consumed by the pleasure from her penis. Who cares! As long as she could give me a handjob and make me feel good, that was enough! My sister pressed closer and closer to my back, her small mouth moaning and panting right next to my ear. Her cries were so soft and seductive, as if I were the one stimulating her vagina instead of her manipulating my penis. My sister writhed and twisted against me. Before I knew it, our pajamas had rubbed down to our armpits. Her two large breasts were pressed against the back of my hands, the pleasure almost making me ejaculate. Her two small nipples rubbed back and forth against my back. Slowly, I felt my legs getting wet, wetter and wetter. It was my sister's vagina rubbing against my thighs, so much vaginal fluid. I wanted to reach out and touch her vagina, but I didn't dare. I was afraid she would run away, and I wouldn't even have this pleasure anymore. "Aww—," a throbbing sensation shot through my lower body, and I ejaculated! I ejaculated in my pants! My sister continued stroking until she had drained the last drop of my semen before withdrawing her hand. However, her lower body remained clamped around my thigh, rubbing against me intermittently. ********** ... Then, slowly, she took my hand, lifted her nightgown, and pressed it against her genitals. Just like yesterday, there were no underwear; it was empty. It seemed my sister never wore underwear to bed. Perhaps it was inconvenient when she had sex with her husband. They did it so many times a day; taking it off and putting it back on would be so inconvenient. My sister's genitals were hairy, and her crotch was already wet, soaking her pubic hair. I couldn't resist giving it a squeeze; it was plump and so soft. My sister turned over and lay flat on her back, opening her legs and pressing my fingers into her vulva. It was warm, wet, and sticky, and my fingers felt like they were being electrocuted. How amazing, this feeling! So this was my sister's vagina, the paradise my husband tirelessly cultivated every day. It felt so tender! The two labia minora in the middle must be my sister's labia minora; I had peeked at them from outside her bedroom door more than once. With the thrusting of my brother-in-law's big penis, they were turned over and pushed around. Without realizing it, I pinched one of my labia between two fingers. Unexpectedly, this elicited a seductive moan from my sister. She's so stubborn! She clearly wants it to death, but she can't bring herself to admit it, she won't back down. She'd rather use her own brother's hand than easily make up with her brother-in-law! And my sister is really something, there's a big dick right next door, yet she uses her brother's fingers instead. But then again, my brother-in-law is really something, he penetrates my sister's vagina more than once a day, he must be craving it now too. I imagine he's not having an easy time alone in bed right now. Maybe he's secretly masturbating. Why can't he apologize to my sister? Is apologizing to your wife so shameful? This couple, what can I say! Their arguments and cold war have benefited me, allowing me to touch my sister's vagina, something I never even dared to dream of. Although thinking like this is a bit inappropriate, how can fingers compare to a dick to quench thirst! Sister, if your husband's dick doesn't want it, there's always your brother's! My sister took my finger and placed it on a small spot at the top of her vulva, gently rubbing it in circles. I quickly realized what it was—my sister's clitoris. I'd seen in porn that a woman's clitoris is very sensitive; when aroused, stimulating the clitoris can bring a woman to orgasm, even causing her to squirt, just like the time my brother-in-law made her urinate. So, I took the initiative, imagining what I'd seen in porn, and started stimulating my sister's clitoris. My sister felt my hand moving on its own, and her grip loosened, letting me do as I pleased. I carefully rubbed it with my index finger, gently and tenderly. The clitoris swelled more and more, gradually revealing its tip. Then, the rubbing of my finger on the clitoris changed to vibration. My sister's body trembled violently, and she moaned with pleasure, her voice somewhat lewd. Perhaps to reward her for making her feel good, or perhaps she was simply aroused, my sister lifted my nightgown, slipped her hand inside my pants, and firmly grasped my penis, yet gently stroked the glans, shaft, and scrotum. Only when my glans became wet did she begin to lubricate it. Not to be outdone, I hesitated, but mustered my courage and extended my fingers towards my sister's vulva. I parted her labia minora, my middle finger gently sliding between them. I quickly located the entrance, because each time my finger touched it, it would twitch and relax slightly. At this moment, my sister's breathing became more rapid, her waist...Her limbs were writhing, and her buttocks and hips were twitching unnaturally. My penis was already aligned with my sister's vaginal opening, even probing in a little bit—or rather, her vagina was actively taking it in, sucking on my fingertip with each thrust. Just as I was hesitating whether to actually insert it, my sister suddenly pressed my hand down and forced my middle finger into her vagina. "Ah—so good—oh—so good—," my sister cried, pulling my hand in and out. My middle finger moved in and out of my sister's vagina like this. My middle finger was tightly enveloped by my sister's vagina; it was so hot, so wet, so tight, sticky, and the fluid inside was very viscous. I suddenly remembered the reason my sister and brother-in-law had argued yesterday—wasn't it because my sister's period hadn't ended yet? Was it appropriate to use my hand to penetrate like this? The stickiness in my sister's vagina might just be menstrual secretions, not the fluid from sex. Since my sister had already started moaning, it wasn't so awkward for me to ask her a question. So, I whispered, "Sister, it's so sticky inside! Is your period still going on? Is this okay? Maybe you should stop, I can bear it a little longer—" Before I could finish, my sister turned and kissed my lips, silencing me. "Little thing! Were you eavesdropping on your sister?" I said guiltily, "No—no!" My sister flicked my forehead and said, "Your face is so red, and you still say you didn't! Do you think I saw your eyes through the crack in the door? Or don't you know what that puddle on the floor by the door is?" Oh my god! So my sister knew all along! I wanted to find a crack in the ground to crawl into! "I—I—I—" Seeing my embarrassment, my sister chuckled, "What a cute little virgin! You're still worried about whether your period is over. If only your brother-in-law were as gentle and considerate as you! Don't worry, my good little brother! A woman's vagina is like this right after her period ends." Looking at my sister's smiling, gentle, and kind face, I got carried away and boldly said, "Sister! I can totally feel your body's thirst, especially down there! Let me relieve your itch and thirst!" As soon as I said it, I regretted it. Whether my sister helped me masturbate or I penetrated her vagina, it wasn't considered intercourse. It was just a game of flirting with desire. Would my sister be angry if I made such a sudden request?! My middle finger inside my sister's vagina stopped. I didn't know whether to continue thrusting or pull it out. How embarrassing! "Little brother, why did you stop! Are you in such a hurry to stick your cock into your sister's pussy?" She said, pulling my other hand up to lift her nightgown higher. She then pressed my hand against her large breasts, kneading them, and said, "If you want to relieve my itch, you have to take the lead in foreplay. Little brother! Sex isn't just about sticking your cock into my pussy." Her voice was so wanton, as seductive as a prostitute in a TV drama. She cupped my face in her hands and kissed my lips. Her tongue slipped into my mouth, slippery and teasing my tongue, teeth, and lips. She played with them, licked them, and bit them. I didn't know if I was satisfying my sister, or if she was playing with me. "The feeling of a virgin is really different! Little brother! So innocent! So interesting! I like it so much!" After saying that, she continued kissing me, not only my lips but also my neck and shoulders. She even sucked and licked my ear, gently biting my earlobe with her teeth, and sticking her little tongue into my ear canal. It made me feel incredibly uncomfortable, yet strangely pleasurable, and even more excited. "Sister—Sister—," I cried out passionately, my voice trembling, a mixture of helplessness and longing—such a contradictory feeling! My lower body grew increasingly aroused and hard, incredibly excited, yet without any desire to ejaculate. I vaguely felt that my sister's little hands were no longer enough to satisfy my penis. I needed my sister's vagina. At that moment, all I had was desire. Whether it was my sister or another woman beside me, as long as she was a woman, it didn't matter. What I needed now was sex! The mating of a man and a woman! Sex! "Look at that face of yours, like you've taken the medicine! Want it? I'm personally teaching you how to make love with girls! Don't be so hasty. If you don't feel comfortable, will girls still want to do it with you next time? Right?" As she spoke, her little hands roamed over my body like a gecko. Her nails deliberately scratched my nipples, sliding back and forth between my chest and lower abdomen. Her teasing made my breath ragged, panting wildly with pleasure. My upper body felt numb and itchy, my body trembling, not knowing whether I was trying to avoid her or to accommodate her fingers. "Want to see my flower heart?" she said, gently biting my earlobe. "Mmm—yes—" I replied with a soft moan. "Come on! You've seen my little hole from outside the door before, haven't you? This is the first time you've seen it this close. Look, your little hands are melting my little hole!" Her lewd teasing made my heart leap with excitement. I quickly grabbed my phone and turned on the flashlight. I got up and looked at my sister's genitals. She had taken off her nightgown and was naked, her legs spread wide in an M-shape, allowing me to feast my eyes. I didn't know why she was being so bold and wanton today, but for me, this was a golden opportunity. I couldn't back down. The opportunity was fleeting. My sister's pubic hair was so black and thick. Her clitoris, red and about the size of a small soybean, shyly peeked out. Her labia minora resembled a pair of butterfly wings, so beautiful. Her entire vulva was a vibrant red. I bent down, wanting to lick the nectar from her vulva, but she stopped me. She said, "My period just ended, so sex is fine. But the smell is still awful. Really, no." No licking! I was somewhat disappointed. Instead, I inserted my index finger into her vulva and began thrusting rapidly. My index finger gripped her clitoris, vibrating and grinding with each thrust. "Ah—so good—so good—so good—little brother—good little brother—", my sister cried out, grabbing and kneading her breasts haphazardly. This rapid thrusting couldn't last long; soon her arms ached and went numb. I stopped and said to my sister, "Sister! My hands are tired! Can I use my penis instead? Is that okay?" My sister nodded frantically, saying, "Quick—quick—I want—anything—quick—put it in me—fuck me—" I was just waiting for my sister's approval! Hearing her urgent plea, I immediately satisfied my lewd sister. I held my penis and climbed on top of her, searching for her vagina. Thinking I'd found the right spot, I couldn't insert it. My hard penis just pounded around in her slit. Finally, my sister couldn't wait any longer and grabbed my penis, placing it at the entrance of her vagina. I lowered my hips and with a "plop," thrust into my sister's lewd vagina. Before I could savor the sensation, my lower body began to thrust involuntarily. Making love really doesn't need to be taught; you just need to rely on your body's instincts. "Slap—slap—slap—," I rode my horse inside my sister's burning pussy. The pleasure in my lower body was incomparable to masturbation. Completely different. My sister's tight pussy made me unable to stop. "Ah—ah—so good—little brother—harder—yes—that's it—ah—," my sister moaned ecstatically. Her hands scratched wildly at my back. Her nails drew lines on my back, burning and a little painful. But it excited me even more! Is this what crazy sex with a woman is like?! So exciting! So wild! I asked, "Sister! Is it comfortable like this? I'm going to put it all the way in! Is that okay?" My sister was a little surprised: "You didn't put it all the way in? I feel like it's already all the way in! You're not kidding me, are you?" I said helplessly, "Didn't you notice when you were stroking me? My penis isn't as thick as your husband's, but it's longer." My sister nodded and said, "That's true! Now that you mention it, I noticed, so I moved my arms more when I was stroking you. Put it in slowly. Just don't hurt my little hole." I said, "I know! I'll be careful." My sister said in a seductive voice, "Let your sister taste what it's like to have a longer, bigger penis!" I straightened up and used my body weight to carefully and forcefully push the last part in. With each thrust, I pushed it in a little more. Slowly, my entire penis was inside my sister's little hole. Occasionally, my glans would touch something inside her vagina that resembled a small mouth, sucking on it. When I pulled out, there was a soft "snap"—it was so wonderful! Watching my sister beneath me, her eyes glazed over, as if lost in a rain of mist, experiencing ecstasy, my male pride surged. With each increasingly frenzied thrusting, more and more of her vaginal fluid gushed out, soaking my scrotum and pubic hair. The impact of our bodies also sprayed the fluid everywhere. Tiny specks, on my stomach, on my sister's buttocks, everywhere, sticky and messy. "So beautiful—I feel so good—brother—you're so good at this—"My sister cried out lasciviously, her hands gripping my head, kissing me frantically. More accurately, she was biting my lips. I knew her almost frantic actions meant she was about to climax. I deliberately pulled my entire penis out except for the glans, then quickly and forcefully thrust it back in. This made it easy to touch that little opening inside her vagina again, pressing against it, my glans being sucked in, then "pop!" So good! What a wonderful feeling! I repeated this a dozen times, and my sister's body trembled as if electrocuted. Her mouth opened wide, panting, writhing, as if trying to say something, but no sound came out. "Ah—brother—your penis—is so powerful—I'm going to die—," my sister screamed hoarsely, "Ah—ah—harder—faster—ah—" I was startled by her final hysterical scream! But I fucked her even harder. Because I knew she had reached her climax. I was being fucked to heaven by my big cock. Then, I felt myself coming too, and asked my sister, "Can I cum inside?" But my sister was at the peak of her sexual desire, and she cried out incoherently, "Don't ask me. Whatever! Cum wherever you want! Mouth, pussy, breasts, whatever!" I thought about it; this was my first time having sex, so of course I had to make it perfect. The most authentic way was to cum inside—in my sister's pussy. Having made up my mind, I started thrusting hard, sprinting towards cumming inside. "Ah—I'm going to cum—cum inside my sister's pussy—ah—" My cock throbbed, shooting my first load of semen deep into my sister's pussy. "Mmm—oh—so hot—my brother's semen is so hot—it feels so good in my sister's pussy—", my sister moaned lazily after her orgasm. I lay comfortably on top of my sister. Until my cock went limp and was squeezed out of her pussy. My sister pushed me away, covered her genitals, and ran to the bathroom. I saw my semen dripping between my sister's fingers. I loved the sight of my naked sister, her crotch dripping with her younger brother's semen! The next day, I woke up with my naked sister in my arms. I rolled over and pressed myself against her body for a pre-morning encounter! Life was so beautiful! **************** ... Or is she just a human masturbation device? Sigh! Forget it! Logically speaking, my sister and brother-in-law are husband and wife, a legally recognized couple. Let's just consider what happened between my sister and me as a one-night stand. Putting everything else aside, she's my sister! I should be happy that she and her husband have reconciled. But I'm just a student, living at my sister's house. What can I give her? What can I hope for? The pleasure with my sister was an unexpected and terrifying experience. Wasn't it?! So, life returned to normal. My sister was still my sister, and I was still my brother. But one late night, suddenly, a violent storm broke out, with thunder and lightning. My sister ran into my room in a panic. I felt her body trembling under the covers and asked worriedly, "Sister, what's wrong?" My sister hugged me tightly, her voice trembling, "Your brother-in-law is working overtime. The thunder woke me up! I'm so scared!" I quickly stroked her hair and said, "Don't be afraid! Don't be scared! Your brother's here!" My sister nodded. Slowly, her trembling subsided. I reached for the bedside lamp and turned it on. Suddenly, a thunderclap boomed. Startled, my sister jumped back, clinging even tighter to me. I held her close, trying to give her as much security as possible. A few minutes later, the thunder faded, the wind died down, and a torrential downpour began, pounding against the windowpane with a loud patter. The thunder stopped, and my sister showed no sign of leaving. Of course, I wasn't foolish enough to send her back. She still clung to me, seemingly still trembling slightly with fear. Once her breathing had calmed, I looked down and saw she was asleep! Oh well! What a disappointment. Nothing would happen tonight. But things changed the next morning. I was awakened by my sister's warm lips. She whispered seductively in my ear, "My dear brother, do you miss your sister's body? Come on! Come and love your sister!" These were the most heart-fluttering words I had ever heard. My sister hadn't forgotten me; she knew how much I longed for her body. I roughly ripped off her nightgown, leaned over and pressed myself against her, licking and teasing her alluring little hickeys. I licked, sucked, ground them with my lips, and tore at them with my teeth. "Oh—ah—," she moaned softly. She willingly opened her legs, indicating that I could take over her lower body. However, I hadn't had enough of her breasts yet, so I focused on playing with her large breasts. As I played with them, I exclaimed, "Sister! Sister! Your breasts are so beautiful! I—I love them so much!" My sister gasped, "Ah—brother—down there—down there—faster—faster—" I shook my head and said, "But I haven't touched your breasts enough yet." My sister said anxiously, "From now on, you can touch my flesh as you please. Faster—faster—faster—I can't take it anymore—" While begging me, she took the initiative to grab my penis and insert it into her vagina. I yelled, "Quick—quick—put it in—" I wanted to tease my sister, but I was afraid she'd get angry and never talk to me again. That would be a huge loss. Seeing that I didn't immediately put it in, my sister panicked! She got up, pushed me onto the bed, climbed on top of me, pinned me down, and straddled my waist. Suddenly, I felt like I was being raped by my sister. My penis was gripped in her hand. My sister straightened up and shoved my penis between her legs. Then, slowly but powerfully, she sat down. I looked up and watched my penis being slowly swallowed by my sister's vagina. Oh my god! This feeling! It was completely different from the last time I pinned my sister down and manipulated her! Especially the visual impact! My sister's swaying, alluring figure goes without saying, but just her pair of large, throbbing breasts were visually striking. Moreover, by simply raising my head, I could clearly see my penis thrusting in and out of my sister's vagina. The opening and closing of her vaginal opening, the graceful dance of her labia. So cool! Watching my sister pant and frantically stroke my penis, I thrust my hips to match her movements. Her juices flowed continuously from the gap between her vagina and my penis. More and more. Suddenly, my sister twisted her waist wildly, moaning, "Ah—oh—!" I quickly thrust again, reaching orgasm with her. I offered my pent-up semen to her. Silently, I thought: "Slutty sister! Let your big-dicked brother fuck you until you're pregnant!" My sister lay on top of me, savoring the beauty of her orgasm. She didn't even notice the semen spilling from her vagina. Until our stomachs were rumbling. ************************************************************************************** After that, every day after my brother-in-law left, my sister had another activity—making love with her own brother. Bathtub, toilet, dining table, sofa, kitchen—everywhere in the house bore the marks of our lovemaking. At my suggestion, we watched porn and tried to imitate the actions to enhance our pleasure. Gradually, we became dissatisfied with simply imitating the actions and started buying all sorts of sex toys. My sister also became increasingly uninhibited, and I started to worry that if this continued, would I turn her into a slut?! [The End]

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My brother-in-law let my sister into my bed.

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