I never planned for it to happen, but once it started there was no stopping. My mom had always been hot as hell, tight body from the gym, big tits that strained every shirt she wore, and an ass that made my dick twitch every time she bent over. I was 22, living at home to save money, and she was 45, divorced and horny as fuck after years of a dead bedroom. It all kicked off one Friday night when dad was long gone and we were both drinking on the couch.
She was in a tiny tank top with no bra, nipples poking out like they wanted attention. I caught her staring at my crotch while I adjusted myself. "You've grown up big," she said, voice low and dirty. "Bet that cock's bigger than your father's ever was." I laughed it off at first, but she reached over and squeezed my thigh, fingers sliding up until she cupped my balls through my shorts. "Show me."
I pulled my dick out right there. It was already rock hard, thick and veined, leaking precum. Mom moaned like a slut and wrapped her hand around it, stroking slow and firm. "Fuck, son, this is what I've been missing." She leaned in and licked the head, tasting me, then took me deep into her mouth. Her tongue worked the underside while she bobbed, gagging just enough to make it sloppy and wet. I grabbed her hair and fucked her face, watching spit drip down her chin onto those big tits.
We didn't talk about stopping. That night I bent her over the kitchen table and slammed into her from behind. Her pussy was tight and soaked, gripping my cock like it was made for it. I pounded her hard, slapping her ass red while she begged for more.

"Harder, baby, fuck your mom like you mean it." I reached around and rubbed her clit until she came, squirting all over my balls. Then I filled her up, shooting thick ropes of cum deep inside her cunt.
After that it was constant. We kept it secret, but the risk made it hotter. Mornings before work she'd wake me with her mouth on my cock, sucking me slow and nasty until I pumped cum down her throat. She'd swallow every drop and smile with cum on her lips. Afternoons when she got home from her job she'd strip in the living room and ride me on the couch, tits bouncing in my face while I sucked her nipples and thrust up into her. "Tell me how much you love fucking your mom," she'd demand, and I'd tell her straight: "Your pussy's the best, mom. So wet and greedy for my dick."
Nights were the dirtiest. She'd sneak into my room in nothing but heels, climb on top and grind her soaked slit along my shaft before sinking down. We'd fuck for hours, switching positions, me pinning her legs back and railing her deep while she clawed my back and came again and again. Sometimes I'd pull out and cum on her tits or face, marking her like she was mine. Other times I'd stay buried and fill her, watching my load leak out when I pulled free.
The secret made every touch electric. At family dinners she'd brush her foot against my leg under the table, or text me filthy pictures from the bathroom. I'd reply with videos of me stroking my cock, and she'd sneak off to finger herself while watching. Once, during a holiday gathering, she pulled me into the laundry room, hiked up her dress, and let me fuck her quick and rough against the dryer. Her moans were muffled against my shoulder while I pumped her full, then she went back out with my cum running down her thigh.
We never got caught, but the close calls only made us bolder. She'd whisper "I want your cock in my ass tonight" at breakfast, and I'd spend the day hard, thinking about stretching her tight hole. When it happened she was on all fours, begging while I worked lube into her and pushed in slow. Her ass gripped me like a vice, and once she adjusted I fucked her hard, reaching under to play with her clit until she screamed into the pillow. I came so deep she felt it for days.
It was raw and wrong and perfect. Mom and I kept our secret sex going for months, every session dirtier than the last. She taught me exactly how she liked her pussy eaten, how to choke her just right while I fucked her, how to make her squirt on command. I learned her body like it was mine. We never stopped wanting more, and every time we locked the door or waited until the house was empty, it felt like the hottest thing in the world.