I came home early and the sounds hit me first. Wet slapping, my wife moaning like a whore, and a man's deep grunts I knew too well. Mark, her fucking brother. I froze in the hallway, cock already twitching in my pants even as my stomach twisted. The bedroom door was cracked open. I stepped closer and there they were.
Sarah was on all fours, her big tits swinging while Mark pounded her from behind.
His thick cock stretched her pussy wide, sliding in and out with loud, messy sounds. Her juices coated his shaft and dripped down her thighs. "Fuck me harder, big brother," she begged, pushing back against him. "Show my husband what a real man feels like when he gets home."
Mark grinned and slapped her ass hard enough to leave a red handprint. "You love this dirty incest cock, don't you? Tell him how much better it is than his." He looked straight at me standing in the doorway. "Come in, cuck. Watch me ruin your wife's cunt."
I stepped inside, dick rock hard and leaking. Sarah turned her head, eyes glassy with lust. "Strip and sit in the chair, baby. You don't get to touch until Mark says so." I obeyed, yanking off my clothes, my smaller cock bouncing free. Mark kept slamming into her, balls slapping her clit with every thrust.
"Look at that pathetic thing," he laughed, grabbing Sarah's hips and fucking her faster. "No wonder she needs her brother's dick. This pussy is mine now." Sarah moaned louder, her walls clenching visibly around him. "Yes, Mark, fill me up. Breed your little sister while he watches."
I sat there stroking myself slowly, humiliated and throbbing. Mark flipped her onto her back, spread her legs wide, and drove back in. Her tits bounced with every brutal thrust. He leaned down and sucked one nipple into his mouth, biting just enough to make her cry out. "Tell him how many times I've fucked you this week," he ordered.
"Every day," Sarah panted, staring at me. "He came in my mouth before you left for work yesterday. And last night he bent me over the kitchen counter and pumped a load straight into my womb. Your wife is your brother's cumdump, honey."
Mark groaned and sped up, the bed creaking. "Gonna flood her again right now. Watch, cuck." He buried himself to the hilt and came hard, his balls pulsing as he pumped thick ropes of cum deep inside her. Sarah screamed through her own orgasm, her pussy milking him. When he pulled out, white cream oozed from her stretched hole and ran down her ass.
"Clean it up," Mark told me. "Lick your wife's brother-loaded cunt." I dropped to my knees between her thighs and dragged my tongue through the mess. It tasted salty and thick, mixed with her sweet juices. Sarah grabbed my hair and ground against my face. "Suck it all out. Swallow every drop my brother gave me."
While I licked, Mark moved behind me and pressed his still-hard cock against my ass. "You want this too, don't you? Want your wife's brother to own both of you?" He didn't wait for an answer. He spat on my hole and pushed inside in one rough thrust. I moaned into Sarah's pussy as he started fucking me, his cock still slick with their combined cum.
Sarah came again on my tongue while Mark railed my ass. "That's it, take it," he growled. "Your whole family belongs to me now." He reached around and jerked my cock in time with his thrusts. I exploded all over the floor, shooting weak spurts while he filled my ass with another hot load.
We collapsed in a sweaty pile on the bed afterward. Sarah kissed me deep, sharing the taste of Mark's cum. "This is our life now," she whispered. "You watch. You clean. And we all get off on it." Mark just smirked and pulled her close, already getting hard again against her thigh.
I knew it was only the beginning. My wife and her brother owned me completely, and I was rock hard again just thinking about the next time they'd use me.
