Britney Thompson stood in the kitchen of their spacious suburban home, wiping down the counter for the third time that evening. At 42, she still turned heads with her voluptuous figure—full, heavy DD breasts that strained against her thin tank top, wide hips, and a plump ass that filled out her yoga pants perfectly. Her long auburn hair cascaded down her back, and her green eyes held that mix of maternal warmth and something deeper, something restless she’d buried since her divorce.
Her son Justin had just turned 20. He was home from college for the summer, tall and muscular from years of sports, but it was the secret between his legs that had become impossible to ignore. Justin had always been… gifted. But in the last year, his cock had grown into something almost unnatural—a thick, veiny monster that made regular condoms useless and left him in constant discomfort.
“Mom, the doctor called back,” Justin said, stepping into the kitchen. His voice was low, embarrassed. He handed her the phone.
Britney scanned the message. Dr. Harlan, their trusted family physician, had been treating Justin’s “condition” privately. The note was clinical but unmistakable:
“After reviewing tests, recommend immediate home therapy protocol. Intimate maternal contact essential for circulation and psychological relief. Daily sessions involving direct genital stimulation and full-body positioning. Start with facesitting and manual/oral relief. Progress to penetration if needed. Strict doctor’s orders—non-compliance risks permanent damage.”
Britney’s cheeks burned. “Justin… this can’t be right.”
“He said it’s real, Mom. He’s done studies on this. Something about extreme blood flow issues with… size.” Justin shifted, his sweatpants already tenting obscenely. The massive outline of his monster cock was impossible to hide.
That night, after hours of hesitant discussion, Britney agreed. Doctor’s orders. She told herself it was medical. Necessary. But deep down, the idea of her handsome son’s enormous cock had been haunting her fantasies for months.
They moved to Britney’s bedroom. She dimmed the lights and slipped out of her robe, wearing only black lace panties and a matching bra that barely contained her heavy tits. Justin lay on his back on the king-sized bed, his massive erection freed and throbbing upward like a thick pole—easily 11 inches long and girthy enough that Britney’s hand couldn’t close around it.
“Doctor said I need to… sit on your face first,” she whispered, voice trembling with shame and arousal. “To help with… circulation.”
Justin nodded, eyes dark with lust. “Please, Mom.”
Britney straddled his chest, then slowly lowered herself. She hooked her thumbs into her panties and slid them down her thick thighs, revealing her smooth, shaved pussy already glistening. She spread her legs wide, knees sinking into the mattress on either side of his head.
“Mom… you’re so beautiful,” Justin groaned.
She lowered her wet cunt onto his eager mouth. The first contact made her gasp. Justin’s tongue dove in immediately, lapping at her swollen lips and flicking her clit with surprising skill. Britney moaned, grinding down harder. She spread her legs even wider, opening herself completely to her son’s hungry mouth.
“Oh fuck, Justin… that feels so good,” she whimpered. Her hips rocked in slow circles, smothering his face with her plump ass and dripping pussy. Facesitting her own son. The taboo of it sent electric shocks through her body.
Justin’s hands gripped her ass cheeks, spreading them wider as he devoured her. His nose pressed against her asshole while his tongue fucked deep into her pussy. Britney’s juices coated his face. She reached back and grabbed his monster cock, stroking the enormous shaft with both hands while she rode his face.
The pleasure built fast. Britney’s thighs trembled. She pressed down harder, full weight on his mouth, smothering him in wet heat. “Yes, baby… eat Mommy’s pussy. Doctor’s orders, right?”
Justin moaned into her cunt, the vibration pushing her over the edge. She came hard, flooding his mouth with her orgasm, grinding and facesitting through every spasm until her legs shook.
After she recovered, Britney slid down his body. Her heavy tits dragged over his chest and abs. She looked at his monstrous cock standing straight up, veins pulsing, the head swollen and leaking precum.
“Doctor said manual and oral stimulation too,” she said, voice husky now.
She wrapped her soft, heavy breasts around his massive shaft. Even with her large DD tits, his cock was so thick and long that several inches still protruded from her cleavage. Britney pressed her tits together tightly and began to slide them up and down.
“Fuck, Mom… your tits feel incredible,” Justin groaned.
Britney lowered her head and licked the fat cockhead every time it thrust up between her breasts. She drooled spit down into her cleavage, making the titfuck slick and sloppy. Justin thrust upward, fucking her tits with powerful strokes. The wet sounds filled the room—schlick, schlick, schlick.
She opened her mouth wide and took the head inside while still titfucking him, sucking hard. Her cheeks hollowed. Saliva ran down his shaft, coating her breasts.
“You’re so big, baby… Mommy’s monster cock son,” she murmured between licks.
Justin’s hands tangled in her hair. He fucked her tits and mouth faster. Britney moaned around his cockhead, the taboo thrill making her pussy throb again.
By the third night, the “therapy” had become nightly ritual. Britney no longer pretended it was only medical. She craved her son’s monster cock.
She lay on her back, completely naked. Justin knelt between her thighs. Britney spread her legs wide, knees pulled back almost to her shoulders in a lewd, open position. Her pink pussy lips glistened, already dripping.
“Put it in me, Justin,” she begged. “Doctor’s orders say full penetration if needed.”
Justin rubbed the huge head up and down her slit, teasing her clit. Then he pushed forward. Britney’s eyes widened as her pussy stretched obscenely around his girth. Inch after thick inch sank into her until he was buried balls-deep, her belly visibly bulging from the size.
“Oh my god… you’re splitting Mommy open,” she cried out in pleasure-pain.
Justin started thrusting—long, powerful strokes that made her heavy tits bounce. Britney kept her legs spread as wide as possible, holding her knees open so he could watch every inch of his monster cock disappearing into her.
“Harder, baby! Fuck Mommy’s pussy!”
He pounded her relentlessly. The bed creaked. Skin slapped loudly. Britney’s juices squirted around his cock with every thrust. She came twice before he finally roared and flooded her womb with thick ropes of cum.
But they weren’t done.
***
Over the following weeks, the sessions grew more intense. Britney became addicted to facesitting her son. She would wake him in the morning by lowering her ass onto his face, grinding her wet pussy and asshole across his tongue while stroking his morning monster erection.
One particularly filthy afternoon, she sat reverse on his face, her plump ass smothering him completely while she sucked his cock. Justin licked her asshole deeply as she deepthroated as much of his massive dick as she could. Her saliva ran down his balls. She spread her cheeks wider with both hands, giving him full access.
“Eat Mommy’s ass while I suck your monster cock,” she moaned.
Later that night she rode him cowgirl, spreading her legs wide in a deep squat so he could see everything. Her tits bounced heavily as she slammed down onto his cock again and again.
“Fill me up, Justin. Breed Mommy. Doctor’s orders include creampies every session.”
He gripped her hips and thrust up, pumping load after load into her fertile womb.
***
By the end of summer, Britney and Justin had fully embraced their forbidden relationship. The doctor’s “therapy” had become daily life. Britney often wore nothing but heels around the house, ready for her son to bend her over or make her sit on his face at any moment.
One evening she dressed in a sheer white babydoll. She pushed Justin onto the couch, straddled his face, and sank down. Her legs spread wide as she faced away from him, grinding her soaked cunt on his tongue while jerking his monster cock with both hands.
“I love facesitting my baby boy,” she gasped. “I love your huge cock stretching me.”
Justin devoured her. She came hard, squirting on his face. Then she spun around, impaled herself on his cock, and rode him furiously, tits bouncing, legs spread obscenely.
“Cum inside Mommy again… breed your slutty mom pussy!”
Justin exploded, flooding her with another massive load.
As they lay together afterward, Britney stroked his still-hard monster cock and whispered, “Doctor’s orders were the best thing that ever happened to us.”
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