I slammed the door behind me and there she was, my little sister Emily, bent over the kitchen counter in nothing but a tiny tank top and panties. She was 22, legal as hell, and we'd been dancing around this for months. "You want it raw tonight?" I growled, yanking my belt open. She turned, eyes wide but already wet, nipples poking through the thin fabric. "Fuck yes, big brother. I want you to put a baby in me."
I grabbed her by the hips and spun her around, shoving her face down onto the cool marble. Her ass cheeks spread as I ripped those panties aside. Her pussy was dripping already, pink and shaved smooth. I spat on my cock and shoved it straight in, balls deep in one thrust. She screamed my name, "Jake! Fuck me harder!" I pounded her like a machine, the wet slap of skin on skin filling the room. Every stroke I told her what I was doing. "Gonna flood that cunt with cum. Gonna breed you full of my load until you're knocked up."
Emily pushed back, meeting every thrust. "Yes, breed your sister. Fill me up. I want your baby." I reached under and rubbed her clit hard, feeling her walls clamp down. She came fast, squirting around my shaft, but I didn't stop. I flipped her onto her back on the counter, legs spread wide, and slammed back inside. Her tits bounced with every brutal fuck. I leaned in and sucked a nipple, biting just enough to make her yelp.
"Talk dirty," I ordered. She did, voice hoarse. "Pump me full, brother. Shoot that thick incest cum straight into my womb. Make me pregnant with your kid." I felt my balls tighten. I pulled out just long enough to slap my cock against her swollen clit, then drove back in and unloaded. Rope after rope of hot cum blasted deep, painting her insides white. She moaned like a whore, grinding down to take every drop.
We weren't done. I carried her to the bedroom, cock still hard and slick. I laid her on the bed, pushed her knees to her chest, and slid back into that cum-filled pussy. It squelched loud and filthy. I fucked her slow at first, watching my seed leak out around my shaft, then picked up speed.
"Feel that? That's brother cum trying to knock you up. You're gonna be round with my baby." Emily clawed my back, begging. "Don't pull out. Breed me again. I want twins if you can do it."
I came a second time, even deeper, grinding my pelvis against hers to force it all in. We stayed locked together, panting, my cock pulsing the last spurts. Later that night she rode me, reverse cowgirl, reaching back to spread her ass while my cum dripped down my balls. "Look how much you already put in me," she said. "Keep going until I'm pregnant." I grabbed her hips and thrust up, emptying a third load straight into her fertile cunt.
By morning she was leaking, thighs sticky, belly slightly swollen from all the cum I'd pumped in. She smiled, hand on her stomach. "Think it took?" I pulled her close, already hard again. "Only one way to make sure." I bent her over the mattress and started round four, raw and relentless, whispering every filthy detail of how I'd keep breeding my sister until she was carrying my child. She came twice before I added another thick flood, sealing it all inside.
