Mark had just turned twenty-two when he moved back home for the summer. His mom, Linda, was a thick BBW with wide hips, a soft belly that hung over her waistband, and an ass so big it jiggled with every step. She wore tight yoga pants around the house that clung to every curve. The first night back, Mark caught her bending over the dryer, those massive cheeks spread wide in the thin fabric, and his cock got hard instantly.
He tried to ignore it at first. But every day it got worse. Linda cooked in nothing but an old tank top and shorts that rode up her crack. Her heavy tits swayed when she walked, nipples poking through the cotton. One afternoon she asked him to rub lotion on her back after a shower. Mark's hands sank into the soft flesh of her shoulders, then lower, until he was kneading the sides of her huge breasts. Linda moaned and pushed back against him.
"Fuck, that feels good, baby," she said. "Mommy's been so tense."
Mark's cock pressed against her ass through his jeans. Linda reached back and grabbed it.
"Oh my god, you're hard for me," she whispered. She turned around, dropped to her knees right there in the kitchen, and yanked his pants down. Her mouth was hot and wet as she swallowed his cock to the root. She sucked loud and sloppy, spit running down her chin onto her big tits.
Mark grabbed her hair and fucked her face. "That's it, Mom. Suck your son's dick."
She pulled off, gasping. "I want you to fuck me. Right now."
They didn't make it to the bedroom. Linda bent over the kitchen table, pulled her shorts down, and spread her thick thighs. Her pussy was shaved and dripping, lips fat and pink. Mark slammed into her from behind, his cock stretching her tight cunt. Her ass cheeks clapped against his hips with every thrust, the sound wet and filthy.
"Fuck me harder," Linda begged. "Use Mommy's fat pussy."
Mark pounded her, hands sinking into the soft rolls of her belly and hips. He reached around and slapped her heavy tits, making them swing. Linda came hard, her walls clenching around him, juices running down her thighs. Mark kept going until he pulled out and sprayed thick ropes of cum across her massive ass.
That night they did it again in her bed. Linda rode him, her huge body bouncing, belly and tits shaking. She talked dirty the whole time. "You like fucking your fat mom? You like how this big ass feels on your cock?"
Mark flipped her onto her back, pushed her legs up, and drove deep. He came inside her, filling her pussy while she moaned his name.
Over the next weeks they fucked everywhere. In the shower, Linda on her knees sucking him while water ran over her curves. On the couch, her on all fours getting railed from behind until her ass was red from spanking. Mark loved burying his face between her thick thighs, eating her pussy until she squirted on his tongue.
One night Linda woke him up by straddling his face. "Mommy needs her boy's mouth," she said, grinding her wet cunt on him. He licked her clit while she reached back and stroked his cock. When she came, she slid down and impaled herself on him, riding until they both exploded.
By the end of summer they stopped pretending. Linda walked around naked, letting Mark grab her ass or fuck her whenever he wanted. She loved telling him how much better his cock felt than any other man. Mark loved watching his cum drip out of her used pussy onto her thick thighs.
They knew it was wrong, but neither cared.
The house was filled with the sounds of skin slapping, dirty talk, and Linda's loud moans every single night.
