Sarah had always known her husband's dad, Frank, had a thing for her. The way his eyes lingered on her tits when she bent over, the crude jokes he'd make when her husband wasn't around. One night, after too many drinks at a family barbecue, Frank cornered her in the kitchen. "That ass of yours needs a real man's cock," he growled, grabbing her hips. Sarah didn't stop him. Instead, she dropped to her knees right there and sucked his thick, veiny dick while her husband grilled outside.
From then on, it was raw and constant. Frank would show up when her husband was at work, bend her over the kitchen table, and pound her pussy hard. "Take that father-in-law cock, you filthy slut," he'd snarl, slapping her ass as he slammed into her. Sarah came screaming every time, her cunt dripping around him. She loved the taboo of it, the way his balls slapped against her while he called her his dirty daughter-in-law whore.
Then their son, Jake, turned nineteen and came home from college for the summer. Tall, built like his grandfather, and always staring at her. Sarah caught him jerking off one afternoon, his hand stroking a cock that looked just like Frank's. She didn't leave. She walked in, pulled her top off, and let him suck her nipples while she stroked him. "You want to fuck Mommy like Grandpa does?" she whispered. Jake groaned and shoved his dick into her wet hole right there on his bed.

Soon it became the three of them. Frank would fuck her mouth while Jake pounded her from behind, their cocks filling her at both ends. "Suck your father-in-law's dick while our son rails that married cunt," Frank ordered, holding her hair. Sarah gagged on him, spit running down her chin, her pussy clenching around Jake's shaft as he thrust deep. They took turns dumping loads in her, Frank's thick cum mixing with Jake's younger, hotter spunk inside her.
One weekend when her husband was out of town, they didn't stop for two days. Frank ate her ass while Jake fucked her face, then they switched, double-stuffing her on the living room couch. "Ride your son's cock, then sit on Grandpa's face," Frank demanded. Sarah obeyed, bouncing on Jake until she squirted, then grinding her soaked pussy on Frank's tongue. They kept her naked, using every hole, calling her their family cumdump. By Sunday night she was sore, covered in their loads, and already planning the next time they'd both fuck her senseless.