Mark came home early from work and froze in the hallway when he heard the wet, rhythmic slapping coming from the living room. He knew that sound. His wife Sarah was getting fucked hard. He crept forward, already half-hard in his pants, and peered around the corner.
Tyler, his sons twenty-year-old best friend, had Sarah bent over the arm of the couch.

The kids jeans were around his ankles, his thick cock driving into her from behind with loud, nasty thrusts. Sarahs tits swung free, nipples dragging against the fabric every time Tyler slammed home. Fuck, Mrs. Thompson, your pussys gripping me like it doesnt want to let go, Tyler growled, one hand fisted in her hair.
Marks cock twitched. He didnt yell. He didnt move. He just watched while the boy who used to play video games with his son stretched his wifes cunt wide open.
Sarah moaned like a whore. Deeper, Tyler. Stretch me out. My husband never fucks me like this. Tyler laughed, low and mean, and slapped her ass hard enough to leave a red handprint. Yeah? That limp-dick cuck probably jerks off thinking about it. Bet hed love to watch me breed you right here on his couch.
Marks hand went to his own cock without thinking. He squeezed through his pants as Tyler pulled out, spun Sarah around, and shoved her to her knees. She opened her mouth obediently and took the younger mans cock to the back of her throat, gagging wetly while spit ran down her chin. Tyler held her head and fucked her face, balls slapping her chin with every thrust. Thats it, choke on it. Show your husband what a slut you are.
When Tyler finally pulled out, a thick string of saliva connected Sarahs lips to his cock. He hauled her up, bent her over again, and sank back into her pussy in one smooth stroke. Sarah cried out, pushing back to meet every thrust. Come inside me, she begged. Fill me up so Mark has to see it leak out.
Mark couldnt take it anymore. He stepped into the room, cock straining against his zipper. Tyler looked up, smirked, and didnt miss a beat. There he is. You gonna stand there and watch me knock up your wife, or you gonna pull that sad dick out and stroke it like the cuck you are?
Sarah turned her head, eyes glassy with lust. Watch him, Mark. Watch how much better he fucks me. Tyler reached around and rubbed her clit in fast circles. Sarah came with a loud, broken moan, her pussy visibly pulsing around the younger cock. Tyler grunted, buried himself to the hilt, and pumped her full. Mark could see every throb, every spurt, as thick white cum leaked out around Tylers shaft and ran down Sarahs thighs.
Tyler pulled out slowly, letting the mess drip onto the floor. He looked straight at Mark. Clean her up, cuck. On your knees. Mark dropped without hesitation, tongue already out. He licked his wifes used pussy while Tylers cum coated his tongue, salty and thick. Sarah held his head there and ground against his mouth. Good boy. Taste what a real man leaves behind.
Tyler wasnt finished. He stroked his still-hard cock and told Mark to stay on the floor. Then he fucked Sarah again, this time with her riding him on the couch so Mark had a perfect view of that thick dick disappearing into her stretched hole over and over. Every time Tyler bottomed out, Sarah moaned Marks name like an insult. Mark jerked his own cock furiously, humiliated and painfully turned on.
When Tyler came a second time, Sarah climbed off and straddled Marks face again, letting the fresh load pour into his mouth while she stroked him to a quick, messy orgasm that splattered across his own stomach. Tyler watched, grinning. Same time next week, Mrs. Thompson? Bring the cuck if he wants another taste.
Sarah smiled down at Mark, fingers still in his hair. Hell be here. Wont you, baby?
Mark swallowed the last of Tylers cum and nodded, already hard again.