Nights with my stepsister

This post was last edited by jk5056 on 2021-1-13 20:04.

My younger sister, Qiyu, recently returned from a school in another city. She's my stepmother's daughter and usually lives in the girls' dormitory at the vocational school, only returning occasionally on weekends. She only comes back to stay during summer vacation. Qiyu is eighteen years old this year, and looks a lot like my stepmother. She's very beautiful, especially with a devilish figure. I love looking at Qiyu from behind; she perfectly embodies a woman's curves. My biggest fantasy is to marry a wife like Qiyu.

A week passed like this. One night, I was explaining a problem to her. It was early July, and the weather was hot. Qiyu was dressed casually, only her long hair was tied up, and her t-shirt was even thinner, seemingly without a bra. Her breasts were clearly bulging out of her clothes, making my penis throb painfully. Luckily, I had strong willpower and kept explaining to her. Because we were close, I would occasionally joke around, tapping her on the forehead and calling her stupid.

The room temperature rose higher and higher, and my t-shirt was soaked with sweat, but seeing how focused she was, I felt embarrassed to stop. While she was doing her homework, I sat on the sofa next to her and read a novel. She was completely absorbed in her work, and I happened to see her posture from the side. She was so beautiful—the contours of her face, her high breasts, her snow-white arms, and her thighs. I couldn't help but stare, mesmerized.

I was like a man possessed, staring intently at my younger sister, Saitama, whose ample bosom and slender waist were inherited from her stepmother. Although we had grown up together since childhood, after being apart for so long, she had blossomed into a graceful and elegant young woman, her fair skin highlighting her delicate and alluring charm.

Of course, Saitama's shapely and long legs also became the focus of my attention. Like a masterpiece of God, the beautiful lines extended from her ankles to her thighs. I wondered if the top of her thighs was just as captivating.

Suddenly, the lights in the room went out. Saitama screamed "Ahhh!" and threw herself into my arms. My blood pressure spiked instantly, and I quickly reached out to hold her. Only then did I realize what "throwing herself into my arms" meant. Two pointed nipples pressed against my chest. Even though I was wearing a t-shirt, I could still feel her breasts pressing against me. I hugged her shoulders and waist, feeling her warm body temperature.

I quickly said, "It's okay, the power's out!" Saitama realized she had overreacted and hurriedly tried to cover it up, saying, "You scared me! Luckily you were here, or I would have fainted." "

I'll go check if the circuit breaker tripped."

"Me too."

"Damn, are you really that scared?"

I grabbed Saitama's hand, grabbed a flashlight, and went outside to check the circuit breaker. Okay, it seemed the power was really out. Back in the room, a sudden flash of lightning illuminated the room, followed by a deafening clap of thunder that rattled the windows and plunged the room into darkness. I was startled, and Saitama cried out, "Ah!" and immediately clung to me. My blood pressure spiked again;
I desperately wished for more thunder. Perhaps due to her nervousness, Saitama's chest was almost soaked with sweat, and I could clearly feel her breasts pressing against me, though she seemed oblivious.

I said, "I'll sit with you a little longer, until the weather gets better before we sleep."

"Okay...okay..." Saitama's voice trembled.

I practically held her waist as we groped our way to the sofa in the living room. Her supple waist was like water, and I didn't want to let go. A strong wind picked up outside, so I quickly closed the windows and drew the curtains, afraid the lightning would frighten Saitama again. Without electricity, the air conditioner wasn't working, and the room was stuffy, so we sat on the sofa and chatted idly.

She was a little scared, sitting very close to me, as if afraid I'd disappear like a ghost. I couldn't stand the heat, so I took off my t-shirt, yelling, "It's so hot!"

Maybe it was too hot, plus my blood pressure hadn't gone down yet, so I took advantage of the darkness to jokingly touch her breasts. They were soft and wet, it felt amazing. Qi Yu was busy dodging, not noticing I was taking advantage of her again. Seeing I wasn't stopping, she got even more excited: "You big pervert! I'll tickle you!" She sat up abruptly and started tickling me. I didn't expect a counterattack, and before I could react, I was tickled squarely.

I'm not afraid of pain or death, but I'm ticklish, and now I couldn't even speak. And don't let Qi Yu's gender fool you, she's quite strong. She easily pinned me to the sofa, and without warning, she used one leg to pin me down. The skin-to-skin contact sent a jolt through me, and I really wanted it to stay like that forever. My manhood started to stir, thankfully it was dark and I couldn't see. I was already losing my mind. I steeled myself, pushed myself up, and grabbed her. "Let's see if you can still scratch me!"

I said, pressing her breasts hard against my bare chest. Since I wasn't wearing any clothes, I could feel her soft breasts. Saitama moaned, still trying to be strong. I pushed her down onto the sofa, pinning her flailing legs down with my own. I think she felt my hard thing rubbing against her soft legs, and her breathing quickened. My breathing became more rapid, but I still said, "Do you still dare to resist?"

Because I was squeezing her breasts, I felt her nipples harden, and her breathing became irregular. She gasped, "I won't, I won't, let me up!"

I had lost control of my nerves. My mouth slowly moved to her chest, sucking on her breasts through her sweat-soaked clothes, inhaling the slightly salty, girlish scent. Saitama grunted and pushed me away forcefully, saying, "No, no, you can't do this. Get up, let me up."

"Oh..."

"Don't do this, get up." She started hitting my back.

"No, Saitama, I really like you, I won't let you up."

"No, no, let me up, I'm going to tell Mom."

I clamped her legs tightly, sucking on her nipples incessantly, and pulled up her t-shirt with one hand. Even though it was dark, I could still see two white mounds of flesh pop out, with sweat still seeping from their nipples. Her breasts were swollen and full, and my blood was boiling. I took one into my mouth and sucked hard.

Like a playful baby, I would occasionally lick her hardened nipple with my tongue, and each time I licked it, Saitama would tremble. My other hand wasn't idle either, caressing her other breast. I rubbed and twisted her nipple with my fingers, feeling it getting harder and harder, and Saitama was almost crying.

"Let me off, you bad guy."

"Saitama, relax." I moved my mouth to her other breast and sucked and licked it frantically. Saitama's resistance was getting weaker and weaker, and she slowly began to react: "Gently, gently."

"Oh..."

Her hands stopped pushing me away forcefully, and I didn't make any further moves, but her latent sexual desire was slowly being aroused. Saitama put her hands behind my head and pressed my head hard against her breasts. Under sexual stimulation, Saitama also began to moan softly: "Oh... oh..." Her hands kept stroking my back, and my penis was about to explode.

I spread my legs, feeling Saitama's legs begin to cross, rubbing against the sofa. I sucked hard on her breasts, pulling her t-shirt over her head, revealing her snow-white body before me. I was so excited I almost ejaculated, but I knew the best was yet to come. I took a deep breath and held back.

Her two firm breasts, squeezed hard, felt incredibly good. I was practically straddling her now. Saitama closed her eyes, enjoying the sexual stimulation, moaning "Mmm... Ah..."

I lay on top of her, whispering in her ear, "Is it good?" Saitama nodded.

"Want more?"

"You're so naughty~"

What the siblings did went beyond familial affection. Neither of them expected that in less than a week, my hand would be inside Saitama's shirt, my fingers gently kneading her breasts. Although Saitama had tried her own breasts before, this felt completely different from touching them.

"Mmm... Saitama..."

At that moment, I had completely forgotten that we were siblings; we were simply a couple in love. I kissed her forehead, her earlobe, and then began to suckle her sensitive neck. Her body stiffened slightly. Slowly, I kissed her eyes, her cheeks, and then… “Is it okay?” I asked softly, looking at her.

She blushed and nodded slightly. I began to kiss her lips, and Saitama followed suit, her warm, moist lips moistening mine. I slid my tongue into her mouth, and Saitama involuntarily extended her tongue as well. Our tongues finally intertwined, our soft tongues teasing each other. I felt her saliva was sweet and sour, like the taste of lemon. All Saitama did was hold me tightly. In that instant, no one survived in this turbulent, incestuous hell.

"Mmm... mmm... mmm..." She made sweet moaning sounds. My right hand slowly slid down, lifting her skirt. Saitama unconsciously raised her buttocks to make it easier for me to take off her skirt. I started kissing her legs and moved upwards. Although the room was hot, it was nothing compared to my nerves.

Saitama's heated body was like a switch; the touch of my fingers instantly sent electric currents through her body. She felt dizzy and disoriented, and felt a faint thirst, letting me take off her panties... Slowly, I moved my hand to Saitama's moist vulva. Her body trembled slightly as she squeezed her legs together, and her waist began to twist. I gently teased her vagina with my fingers. After my constant caresses, it was already a little wet. "Mmm... mmm... mmm..."

My caresses made her respond comfortably. I felt Saitama's vagina seemed to want to swallow my fingers, and I didn't give up, intensifying my hand movements around Saitama's labia. As I rubbed her engorged clitoris, I began to penetrate deeper. Her juices flowed freely, and her vagina contracted as if drawn by an attraction. Her eyes were tightly closed, her lips slightly parted, her face flushed, and she began to moan with pleasure. "Ah...ah...um...deeper...ah..."

"Um...brother...ah...ah..."

"Ugh...um...hum...so good...oh..."

"Brother...oh..."

My sister's wanton expression infected me. Clear fluid seeped from her swollen, full lower body, and Saitama's face held a complex expression. I reached out, and the clear fluid moistened my fingers. Saitama, in a daze, put my hand into her mouth and sucked on it. She turned her gaze back to me, her beloved brother. I took off my pants and slowly sat down in front of Saitama. Saitama's hazy gaze shifted to my erect penis.

I gently kissed her cheeks and lips, saying, "Saitama, are you ready?"

Saitama knew what I was asking. She blushed and looked at me affectionately for a moment, then nodded. (Saitama's first time was with her ex-boyfriend.) I took her hand. "Saitama, you... sit on top of me," I said, lying back. "Ah~ Brother, you... you're so naughty..." Saitama blushed coquettishly, but slowly moved her body up, kneeling over my body, directly above my penis.

"Okay~, slowly sit down and wrap your wet, hot pussy around me."

Watching Saitama's lower body cautiously facing my erect penis, my penis gradually disappeared into Saitama's tender, juicy pussy. I could feel her tight, wet pussy completely enveloping my penis. "Ah... Oh... Saitama... Oh... We're finally together..."

"I... Oh... Brother... Your penis is inside me... Oh..."

"Alright, now it's your turn to take the lead! Move up and down yourself!"

Saitama grabbed my waist and began to slowly move up and down. The long-awaited intercourse caused the downy walls of her vagina to contract, making my penis even larger. Saitama slowly rose and fell, her labia turned out by the thick, rod-like object, and the slippery vaginal fluid made our genitals tightly sealed together.

"Ah... Push... Push so hard... So deep... Ah..."

This position was a bit difficult, and it was Saitama's first time trying it, so she often moved too much, causing my penis to slip out along with the slippery vaginal fluid. But Saitama was a smart girl like me, and she quickly learned to control her strength without being taught. The most comfortable thing about this position was that it could penetrate very deeply, which was very stimulating. "Ah...good...good...oh..."

"Ah...brother...um...ah..."

Saitama seemed to be completely absorbed in her own rhythm. I wondered if she had a masturbation habit, since she knew so well how to please herself. Or perhaps it was just a woman's nature? Of course, I only found out later whether she had a masturbation habit. I saw Saitama's lustful fluids flowing down my penis, wetting my pubic hair and stomach.

Saitama's firm and lovely breasts bounced and danced like wind chimes, further amplifying my desire. Of course, I wasn't just lying there stiffly. If I did, wouldn't I become Saitama's masturbation dildo? My left hand began to grab her breasts, kneading and rubbing them wantonly, while my right hand reached down to Saitama's clitoris, pinching and teasing it.

"Ah...no...don't pinch there...okay...okay...ah...oh...um..."

"Ah...okay...brother~ ah...so good...so comfortable...ah..."

"Oh...brother...oh..." Saitama's hip movements became faster and faster, her vulva making a slapping sound as it hit her scrotum.

"Hmph...uh...brother...I...so comfortable...oh...my pussy is so hot..."

Saitama's intense moans sounded like the best aphrodisiac to my ears, and I thrust my hips upwards from time to time to make up for Saitama's lack of strength.

Saitama's breasts swayed up and down, she almost forgot that the body under her hips was her brother.

"Ugh...oh...so comfortable...thrust harder...oh...oh..."

I grabbed Saitama's buttocks with both hands and kept thrusting up and down.

"Ah...brother...you really know how to fuck...my pussy feels so good...ah...ah...you're so good at fucking...ah...so comfortable..."

Saitama's unrestrained moans were completely unleashed, and I thrust my hips upwards with all my might.

"Fuck me...fuck me...brother!" she screamed wildly. Each thrust made her feel intoxicated.

She could feel my testicles slamming against her thick labia, making her desperately want to open wider to receive me. Sweat poured from her swaying body, making sounds as our skin collided. The air was filled with a lewd scent, and each impact made her vulva squelch.

"Oh...so good...so good...ah...I'm dying..."

Two sweaty bodies battled with joyful moans.

Saitama's vagina tightened and began to spasm. Saitama clenched the chair cover tightly, and with my vigorous thrusting, Saitama quickly reached orgasm. Her body trembled violently, her vagina contracted, and she ejaculated. A stream of hot semen sprayed onto my glans, and Saitama went limp. I took a deep breath and continued to hold back.

"Brother~ I felt like I died just now, it felt so strange, so comfortable yet so empty."

"Huh? Has your boyfriend never made you feel like this?"

"Hmm... I don't think so," my little sister whispered, lying on top of me.

"You just had an orgasm! Not every girl can orgasm, you're more sensitive, you orgasm more easily, do you like it?"

"Yes! I like it so much!"

I held Qi Yu, slowly got up, then held her legs, changed to the missionary position, thrust my hips hard, and half of my penis went in. Qi Yu unconsciously arched her back, tilted her head back: "Oh... be gentle," then spread Qi Yu's legs wide, deeply buried my penis in her vagina and continued to passionately cultivate this beautiful field. I frantically dominated Qi Yu's delicate body, my thick, hard penis galloping rapidly in my sister's vagina without stopping.

At that moment, I knew very well that this would drive Saitama crazy; I knew she wanted that feeling. Sure enough, my little sister pressed hard against my hard penis, gripping me tightly with her labia. My hands gripped Saitama's breasts tightly, and I thrust wildly into her tender genitals as if punishing her. Saitama frowned, her hands gripping my strong arms tightly, her labia flipping in and out with each thrust, the heat in her lower body unbearable.

"Brother...brother...hmm...I can't take it anymore...uh..."

"Ah...my little hole is being torn apart by you...oh...I'm going to heaven..."

I turned Saitama's body to the side, raised her buttocks, lifted her legs, pressed them under my chest, and then thrust in hard again. "Oh...oh...let me go...don't move...right here...right here...ah...ah..."

Saitama recovered after a few thrusts, her hands twisting the chair cover: "Ah...ah...it feels so good...faster...faster...oh...I can't take it anymore..."

Saitama's vagina became tighter and tighter again, and began to convulse. She moaned: "Almost there...almost there...ah...ah ah...ah..."

"Faster, harder...brother...you want to cum inside my hot little hole! Dear brother...cum...cum inside me, I want you to cum inside..." Saitama screamed. She was already consumed by lust and now only wanted my fluids to fill her empty vagina.

I thrust in and out hard and fast. Because her buttocks were propped up high, I hit her G-spot almost every time, and with enough force. Saitama was speechless, only able to moan "Oh...ah...ah...ah...um...ah..." Her vaginal walls contracted sharply, and she gripped my arms tightly, twisting them forcefully.

I knew she had reached her climax, so I thrust harder and faster. "Ah..." With a long, pleasurable cry, I ignored her and took a deep breath. "I'm going to cum...oh...I'm cumming inside you...I'm cumming...ah..." My hot, thick semen exploded inside Saitama's vagina, filling her uterus. The pleasure was like a bomb rushing to my head and then exploding. I felt my head spinning, and ejaculation twisted my will.

"Ugh...it's inside...so hot...ah...ah...so good..." My semen shot into her uterus, and she also climaxed, "Oh..." and hugged me, kissing me passionately. I remained on top of her until her vagina relaxed. Saitama, dazed, felt her brother's semen pouring into her, like a flood overwhelming her. She couldn't help but embrace me tightly, satisfied. Half a minute later, I rolled over and lay down beside her to rest. My heart pounded with excitement at being able to ejaculate inside my little sister, but I was also a little worried: "Sis, I'm sorry, I just couldn't hold back. You're so beautiful."

Saitama, perhaps still immersed in the excitement, said after a long while, "It's okay, it'll be safe these next few days." I breathed a long sigh of relief. Saitama stared at my still-erect penis, her face flushed and weak, almost unconscious, as she lay beside me, letting her semen flow from her vagina.

"I'm sorry, Saitama, I'm not human, but I really love you."

"Brother, I don't blame you. I won't tell Mom, let's keep it a secret!"

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Nights with my stepsister

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