We were alone in the house again, just like every night that week. I walked into her room without knocking and found her on the bed, legs spread, scrolling through those dirty Tumblr posts she loved. Her fingers were already rubbing her clit when she looked up at me.
"Took you long enough, little brother," she said, voice low and rough. "Get over here and put that cock where it belongs."
I stripped fast, my dick already hard and leaking. She pulled her shorts off and tossed them, pussy glistening, lips puffy from her own touching. I climbed on the bed and shoved two fingers straight into her. She was soaked, tight, and hot. She moaned and grabbed my wrist, pushing my hand deeper.
"Fuck me with your fingers first," she demanded. "Then I want the real thing. Fill me up like last night."
I pumped my fingers hard, curling them against her spot until she was grinding down on my hand. Her juices coated my knuckles. When she started shaking I pulled them out and replaced them with my cock in one thrust. She was so wet I sank to the balls on the first push.
"Goddamn, sis, your pussy's gripping me like it never wants to let go," I growled, starting to fuck her in short, brutal strokes. She wrapped her legs around my waist and pulled me in deeper.
"Harder. Pound that incest cock into me. I want to feel it in my stomach."
I slammed into her, bed creaking, skin slapping. Her tits bounced with every thrust. She reached down and rubbed her clit while I fucked her, pussy making wet sounds every time I bottomed out. I could feel her getting tighter.
"Don't pull out," she panted. "Cum in me. Dump it all in my pussy."
I lasted maybe another minute before I buried myself and unloaded. Thick ropes of cum flooded her, pulse after pulse. She came right with me, cunt clenching and milking every drop. When I finally pulled out, cum leaked out of her stretched hole and ran down her ass.
She didn't let me rest. She pushed me onto my back and climbed on, sinking down on my still-hard dick. "Round two. I want another load."
She rode me dirty, hips rolling, pussy squelching around my cock mixed with my first cumshot. I grabbed her ass and spread her cheeks, watching my dick disappear into her. She leaned forward so her clit rubbed against me with every bounce.
"Talk dirty to me," she ordered.
"Your brother's cock is owning this pussy. Gonna fill it again. Gonna pump so much cum in you it'll drip out for hours."
She moaned louder and started bouncing faster. I met her thrusts, driving up into her. When I felt her start to come I flipped us, pinned her legs back, and fucked her deep until I shot another load straight into her womb. She screamed and clawed my back, pussy spasming around me.
We kept going. She got on all fours and I took her from behind, slapping her ass while I watched my cum and her cream coat my shaft. I pulled out once to smear it over her asshole before shoving back into her cunt. Another orgasm, another load pumped inside her.
By the fourth round she was a mess, thighs shiny, pussy swollen and leaking. She lay on her back, legs open, and told me to eat her. I buried my face between her legs and licked my own cum out of her, tongue fucking her hole while she ground on my mouth. She came on my face, then pulled me up and kissed me, tasting us both.
We fucked until my balls ached. Missionary, her on top again, side by side with her leg hooked over mine.
Every time I came she begged for it, "Give me that brother cum, fill my pussy, make it overflow."
By the end she was lying there, legs spread wide, three or four loads leaking out in thick white streams. She reached down, scooped some onto her fingers, and licked them clean while looking at me.
"Tomorrow night we're going for more," she said. "I want this pussy wrecked and full."
I was already getting hard again just watching.
