I slammed the door shut behind me and tossed the stack of manga onto my bed. My little sister Emma, twenty-one now and home from college for the summer, was already sprawled across the mattress in nothing but a thin tank top and panties, flipping through the pages like she owned the place. We’d found the box in the attic last week, our parents’ old stash of dirty incest manga, and ever since we couldn’t stop reading them.
“Fuck, look at this one,” she said, holding up a page where the brother had his sister bent over the kitchen table, cock buried balls-deep in her cunt. “He’s just pounding her. No talking, just raw fucking.”
My dick twitched in my jeans. I was twenty-three, old enough to know better, but the drawings had us both worked up every night. “You like that shit, don’t you? The brother taking what he wants.”
Emma grinned and spread her legs wider so I could see the wet spot on her panties. “Yeah. Makes me want it for real. You gonna do something about it or just stand there staring?”
I didn’t need more invitation. I yanked my shirt off and climbed onto the bed, grabbing her by the hips and flipping her onto her stomach the way the manga showed. She moaned when I ripped her panties down and slapped her ass hard enough to leave a red handprint. “You want your brother’s cock, you little slut? Say it.”
“Give it to me,” she panted, pushing her ass back. “Fuck your sister like in those stories.”
I freed my thick cock and rubbed the head up and down her soaked slit, coating myself in her juices. Then I shoved in deep in one thrust. Emma cried out, her tight pussy clenching around me like a fist. I didn’t go slow. I fucked her the way the manga drew it: hard, fast, and nasty. My balls slapped against her with every stroke while I held her down by the back of her neck.
“Goddamn, you’re dripping,” I growled, watching my cock stretch her open. “This pussy was made for brother dick.”
She reached back and spread her cheeks wider so I could see everything. “Deeper. Fuck me like you own it.”
I pulled out, flipped her onto her back, and slammed back in. Her tits bounced under the tank top with every thrust. I yanked the top up so I could suck on her nipples while I pounded her. Emma wrapped her legs around my waist and clawed at my back, moaning loud enough that the neighbors could probably hear.
“Tell me how much you love it,” I demanded, grinding my pelvis against her clit on every stroke.
“I love my brother’s cock,” she gasped. “Love getting fucked by you. Don’t stop.”
I reached down and rubbed her swollen clit in rough circles. Her pussy started fluttering around me. She came hard, squirting a little around my shaft, her whole body shaking. I kept fucking her through it, chasing my own orgasm.
When I was close I pulled out and straddled her chest. “Open your mouth.” She did, tongue out, and I stroked my cock until thick ropes of cum painted her face and tongue. She swallowed what she could and licked her lips clean while I watched.
We lay there panting for a minute, the manga pages scattered around us.
Then Emma smiled and reached for another volume. “Round two? This one has the brother eating his sister’s ass.”
I was already getting hard again. We spent the rest of the night working our way through the whole stack, trying every filthy position the artists had drawn. By morning we knew we were never going back to pretending we were just normal siblings. Those incest manga sex stories had shown us exactly what we both needed, and we were going to keep doing it until we ran out of pages.
