It started on a humid July night in 2024 when I came home from college and found my sister Lisa alone in the kitchen. She was 22, same as me, and she was bent over the counter in nothing but a thin tank top and panties, scrolling on her phone. Her ass looked thick and round, cheeks spilling out the sides. I had always jerked off thinking about her, but that night I didn't hold back.
"Can't sleep?" I asked, stepping close behind her. My cock was already half-hard in my shorts.
She turned, smirked, and said, "Not with you staring at my ass like that." No shame. Just direct. Her nipples poked hard through the tank top.
I grabbed her hips and yanked her back against me. "You've been teasing me for years, Lisa. Tonight I'm done with that shit."
She pushed her ass back, grinding on my dick. "Then stop talking and fuck me, big brother."
I ripped her panties down and shoved two fingers straight into her pussy. She was already soaked, hot and tight. I finger-fucked her hard, palm slapping her clit while she moaned and spread her legs wider. "Goddamn, you're dripping," I growled. "You want your brother's cock that bad?"
"Yes," she panted. "Give it to me raw."
I dropped my shorts, lined up, and slammed into her from behind in one thrust. Her cunt gripped me like a fist. I started pounding right there against the counter, skin slapping loud, her tits bouncing under the tank top. She reached back and spread her ass cheeks so I could go deeper. "Harder, fuck me harder," she begged.
I did. I fucked her like I owned that pussy, pulling almost all the way out then driving balls-deep again and again. Sweat ran down my back. Her juices coated my shaft and dripped onto the floor. She came once, pussy clenching and pulsing around me, but I didn't stop.
We moved to the couch. She climbed on top, sank down on my cock, and rode me reverse cowgirl so I could watch her ass bounce. I smacked it red while she ground her clit on my balls. "Tell me how much you love your brother's dick," I ordered.
"I fucking love it," she moaned. "It's so thick. Stretch me out."
She leaned forward, hands on my knees, and I thrust up into her, meeting every drop of her hips. Her asshole winked at me every time she lifted off. I spit on it and rubbed my thumb around the rim. "You want me in there too?"
"Later," she gasped. "Fill my pussy first."
I flipped her onto her back, hooked her legs over my shoulders, and drilled straight down. Her tits jiggled with every thrust. I leaned in and sucked one nipple hard while I kept pounding. She clawed my back and came again, screaming my name.
When I was close I pulled out, stroked twice, and shot thick ropes across her stomach and tits. She scooped some up with her fingers and licked them clean, eyes locked on mine. "We're not done," she said.
We weren't. That night turned into every night we were alone. Shower sex where I bent her over and fucked her ass while hot water ran down us. Morning quickies where she dropped to her knees and swallowed my load before breakfast. She let me tie her wrists with her own panties and pound her until she squirted all over the sheets.
By the end of the summer we had fucked in every room of the house. Raw, dirty, no protection, just pure need. She loved when I called her my slutty little sister while I was balls-deep. I loved how tight and wet she stayed no matter how many times I used her.
We kept it going into fall.
New apartment, same rules. Whenever we were together it was straight to the fucking. No romance, just two adults who knew exactly what they wanted and took it hard.
