I had just turned twenty-two when my older sister Lisa came home for good. She was twenty-five, fresh out of a bad relationship, and moved back into the spare room down the hall from mine. The first night she was back, the house was quiet and our parents were asleep. She walked into my room wearing nothing but an old t-shirt that barely covered her ass. Her tits pushed against the thin cotton, nipples hard. "I can't sleep," she said, voice low and rough. "You still up?"
I sat up in bed, already half-hard just from the sight of her. "Yeah."
She didn't wait for an invitation. She climbed onto the mattress, straddled my lap, and ground her bare pussy right against my cock through my boxers. "Fuck, I've missed this house.
Missed you." Her hips rolled slow and dirty. I could feel how wet she was, soaking the fabric.
"Jesus, Lisa. Mom and Dad are right down the hall."
She leaned in, bit my earlobe. "Then keep your voice down while I fuck you." She yanked my boxers down, grabbed my thick cock, and rubbed the head up and down her slick slit. No teasing, no slow build. She sank down in one hard motion, taking every inch straight to the root. Her cunt was tight, hot, and dripping. She let out a low groan and started riding me fast and rough, tits bouncing under the shirt.
I grabbed her hips and slammed up to meet her. The bed creaked but we didn't stop. Her pussy clenched around me with every thrust, wet sounds filling the room. "Harder," she hissed. "Fuck your sister like you mean it." I flipped her onto her back, hooked her legs over my shoulders, and drove in deep. My balls slapped against her ass with every brutal stroke. She clawed at my back, biting her lip to stay quiet while her pussy spasmed around my cock.
I pulled out, flipped her onto all fours, and shoved back inside from behind. Her ass cheeks spread wide as I pounded her, one hand fisted in her hair, the other slapping her ass red. "You like your brother's dick splitting you open?" I growled.
"Yes," she moaned into the pillow. "Don't stop. Fill me up."
I reached under her, rubbed her swollen clit hard and fast while I fucked her senseless. Her whole body shook when she came, pussy milking my cock in tight pulses. I didn't let up. I kept slamming into her through the orgasm, then pulled her up so her back was against my chest, one hand around her throat, the other still working her clit. I fucked up into her like a machine, deep and relentless. Sweat slicked our skin. The smell of sex was thick in the air.
She came again, harder, biting her own arm to muffle the scream. That pushed me over. I buried myself balls-deep and unloaded, pumping thick ropes of cum straight into her spasming cunt. We stayed locked together, breathing hard, my cock still twitching inside her.
Lisa turned her head and kissed me messy and deep. "Round two in the shower," she whispered. "Then I'm riding your face until I can't walk straight."
We moved to the bathroom down the hall. Hot water pounded over us as she dropped to her knees and sucked my cock clean, tongue swirling over every inch. Once I was hard again she stood, braced her hands on the tile, and arched her back. I lined up and drove in without warning, fucking her standing up with long, powerful strokes that made her tits slap against the wall. Water ran down between us, mixing with the slick mess leaking from her pussy.
I reached around and pinched her nipples, twisting just enough to make her gasp. "Tell me how bad you need it."
"Need my brother's cock wrecking my cunt every night," she panted. "Need you to use me like a fucktoy."
I pulled out, spun her around, lifted her up, and impaled her again while her legs wrapped around my waist. Gravity drove me even deeper. Her back hit the wall with every thrust. I fucked her until her eyes rolled back and she came with a strangled cry, pussy squeezing so tight I thought she'd break me. I followed right after, flooding her again while the shower washed away the evidence.
We didn't stop there. Back in her room we went at it for hours. She rode me reverse cowgirl, grinding her ass in circles while I spread her cheeks and watched my cock disappear into her. I bent her over the dresser and took her hard from behind until the wood creaked. When she begged for more I flipped her onto the bed, pinned her wrists, and fucked her missionary with her legs folded to her chest so I could bottom out on every stroke. Her clit rubbed against my pubic bone until she came screaming into my mouth.
By morning we were sore, covered in bite marks and cum, but already planning the next time. Lisa smiled against my chest. "Same time tomorrow. Don't make me wait."
I knew this was just the start. Our parents would never know, but every night after that we fucked like animals—raw, loud when we could risk it, and always intense. Her pussy was mine whenever I wanted it, and I took it hard and often.
