It started with her walking into the living room in nothing but a thin tank top and panties, nipples poking through the fabric like she wanted me to notice. I was twenty-four, she was twenty-two, and we were alone in the house for the weekend. No parents, no rules. She bent over to grab the remote and I got a clear view of her ass cheeks spilling out. My cock twitched in my shorts.
"Fuck, stop staring," she said, but she didn't straighten up right away. She wiggled her hips a little instead.
"You want me to stare," I told her, voice low and direct. "Your pussy's probably wet already."
She turned around, face flushed, and yanked the tank top off. Her tits bounced free, full and heavy with hard pink nipples. "Prove it. Come here and check."
I stood up, crossed the room in two steps, and shoved my hand straight into her panties. She was soaked, slick folds parting easily under my fingers. I rubbed her clit hard, no teasing, just straight pressure. She moaned and grabbed my cock through my shorts, squeezing the shaft.
"Pull it out," she said. "I want to see how big my brother's dick is."
I dropped my shorts and boxers. My cock sprang up, thick and veined, already leaking precum. She wrapped her fingers around it and stroked once, rough and fast. "Goddamn, that's a nice cock. Bet it feels even better inside me."
I pushed her panties down and off. She kicked them aside and spread her legs right there on the rug. I dropped to my knees, lined up, and shoved the head of my cock between her pussy lips. She was tight but dripping, so I sank in balls-deep in one thrust.
She gasped, back arching.
"Fuck yes," she hissed. "Harder. Fuck your sister like you mean it."
I grabbed her hips and started pounding. Skin slapped skin, wet sounds filling the room every time my cock drove into her cunt. She reached down and rubbed her clit while I fucked her, tits bouncing with every slam. I leaned forward and sucked one nipple into my mouth, biting just enough to make her yelp and clench around me.
We didn't last long the first time. Her pussy squeezed tight as she came, juices coating my shaft. I pulled out at the last second and shot thick ropes across her stomach and tits. She rubbed it into her skin, licking her fingers clean.
"Again," she demanded, already rolling onto her hands and knees. "Doggy this time. I want you to wreck me."
I got behind her, spread her ass cheeks, and slammed back inside. This angle went deeper. I gripped her hips hard enough to leave marks and fucked her like a machine, fast and relentless. She pushed back to meet every thrust, moaning filthy shit the whole time.
"Harder, big brother. Split my pussy open. Fill me up next time. I want your cum dripping out of me all night."
I reached under her and pinched her clit. She came again, screaming into the rug, pussy pulsing around my cock. I kept going until my balls tightened and I buried myself deep, pumping load after load straight into her cunt. When I pulled out, cum leaked down her thighs in thick white trails.
We didn't stop there. She sucked me hard again on the couch, gagging on my cock while I held her head and fucked her throat. Then I bent her over the kitchen table and took her from behind again, this time fingering her ass while I pounded her pussy. She begged for it in her ass next, so I switched, working my cock into her tight hole with spit and leftover cum. She came twice more before I flooded her ass.
By midnight we were in her bed, bodies slick with sweat. She rode me reverse cowgirl, grinding her clit on my balls while my cock stretched her pussy. I reached around and slapped her tits, then shoved two fingers in her mouth for her to suck. She came so hard she shook, then collapsed forward so I could finish by jackhammering up into her.
We fucked until dawn, switching positions, using every room, talking dirty the entire time. No romance, just raw need. When the sun came up we were sticky, sore, and still hungry for more. She looked at me with that same hungry look.
"Shower," she said. "Then round two."
I followed her in, already hard again.
