I came home late and heard moaning from the living room.
My sister Lisa was on the couch with our cousin Mark, both of them naked and going at it. Lisa had her legs spread wide while Mark licked her pussy like he was starving. She looked up and saw me standing there with my cock already hard in my jeans.
"Don't just stand there, get over here and fuck me," she said. Her voice was raw. "Mark wants to watch you pound my cunt, then he wants a turn with both of us."
I stripped fast. My dick slapped against my stomach as I walked over. Lisa grabbed it and pulled it straight into her mouth, sucking hard while Mark kept eating her out. She moaned around my shaft, spit running down my balls. I grabbed her hair and fucked her throat a few times, feeling her gag and swallow.
Mark stood up, his own cock thick and dripping. "Switch," he said. He moved behind Lisa and slammed into her pussy in one stroke. She cried out and sucked me harder. I watched his dick stretch her open, her juices coating him every time he pulled back. Lisa reached up and stroked my cock while she licked the head, then looked at Mark.
"Want to taste your cousin's dick?" she asked him. Mark didn't hesitate. He pulled out of her, dropped to his knees, and took my cock in his mouth. It was hot and wet and he sucked like he meant it. Lisa watched, fingering her own pussy while she told him to take it deeper.
We moved to the floor. Lisa got on all fours and I slid into her from behind, pounding her hard. Her tits swung and she pushed back against every thrust. Mark got in front of her and fed her his cock. She sucked him while I fucked her, the three of us moving together. I reached around and rubbed her clit until she came, her pussy clamping down on my dick.
Mark pulled out of her mouth. "My turn in that ass," he said. Lisa grinned and got on her back. I held her legs open while Mark pushed his cock into her tight hole. She groaned and told him to go deeper. Once he was buried, I straddled her chest and she took my cock back in her mouth. We fucked her from both ends, Mark in her ass and me down her throat.
After a while Lisa wanted to watch us. She sat on the couch and spread her legs, rubbing her clit while she told Mark to suck me again. He did, deep and sloppy. Then she told me to fuck him. I got behind Mark, spit on his hole, and pushed in. He was tight and hot. I fucked him slow at first, then harder while Lisa watched and came again on her fingers.
We switched positions all night. Lisa rode my cock while Mark fucked her ass. Then she sucked both of us, taking turns deep in her throat. Mark and I kissed while she licked our balls. Finally I came deep in Lisa's pussy, Mark right after me in her mouth. She swallowed what she could and let the rest drip down her tits.
We lay there sweaty and spent. Lisa smiled and said we were doing it again tomorrow. My cock twitched at the thought.
