I slammed into my sister's tight cunt from behind, gripping her hips hard enough to leave marks. "Fuck, Lila, your pussy's gripping my cock like it never wants to let go," I growled, pounding her deep on the living room floor. She moaned loud, pushing back against me, her tits swinging. Our brother Jake stood watching, stroking his thick dick, eyes locked on where my shaft disappeared into her wet hole.
"Give it to her harder, Mark," Jake said, voice rough. "She can take it. Look how fucking soaked she is for her own brothers."
Lila turned her head, mouth open. "Both of you. I want both my brothers' cocks tonight. Fill me up."
Jake dropped to his knees in front of her. She grabbed his dick and sucked him down in one sloppy motion, gagging as I kept railing her from behind. The wet sounds of her mouth on him mixed with the slap of my balls against her ass. I reached around and rubbed her clit, feeling her cunt pulse.
"Shit, she's getting tighter," I grunted. "You like sucking your brother's cock while the other one fucks you raw?"
She pulled off Jake long enough to gasp, "Yes, fuck yes. Don't stop."
Jake grabbed her hair and fed his dick back into her mouth, thrusting shallow. I slowed my strokes, savoring the squeeze of her pussy walls around me, then pulled out and flipped her onto her back. Her legs spread wide, pussy glistening. I shoved back in and leaned down to suck one of her nipples hard.
Jake moved behind me. I felt his hands spread my ass cheeks. "You want it too, big brother?" he asked, voice low and dirty.
I didn't answer with words. I just pushed my ass back toward him while still buried in Lila. Jake spat on my hole and pressed his cock against it. The burn hit as he pushed inside, stretching me open. I groaned into Lila's tit, fucking her slower now while Jake started thrusting into my ass.
The three of us moved together in a filthy chain. Every time Jake drove into me, it shoved my cock deeper into our sister. Lila's fingers dug into my back. "Fuck your brother while you fuck me," she panted. "Both of you using each other."
Jake's hand reached around and grabbed my balls, tugging them while he pounded my ass. "Your hole's so fucking tight," he said. "Been wanting to wreck it for months."
I pulled out of Lila and flipped her again so she was on all fours facing Jake. I slid back into her pussy and reached forward to push her head down on Jake's cock. She took him to the root, choking and drooling. I fucked her hard, watching her lips stretch around our brother's dick.
Jake pulled out of her mouth and moved around. "My turn in that cunt," he said. I slid out and he took my place, slamming into her with one thrust. Lila cried out, pushing back. I knelt in front of her and fed her my cock, still slick from her pussy. She sucked me clean, tongue working the underside.
We switched again and again, changing positions on the floor. Jake fucked Lila missionary while I straddled her face and she licked my ass. Then I fucked Jake while he ate her out. Sweat covered all of us. The room smelled like sex and cum.
Lila came first, screaming around my cock as Jake hammered her G-spot. Her pussy squirted around him. Jake pulled out and shot thick ropes across her stomach and tits. I pulled from her mouth and painted her face, watching my load mix with the mess on her skin.
We collapsed in a pile, breathing hard. Lila licked cum from her lips and reached for both our softening cocks. "Round two in ten minutes," she said, already stroking us back to life. "This time I want one in my ass and one in my pussy at the same time."
Jake grinned and slapped her ass. "Greedy little sister."
I just pushed two fingers into her dripping cunt and started working her open again. The night was young, and we had years of this taboo shit to catch up on.
