I never meant for it to happen. But once I saw that giant thick cock on my son, there was no turning back.
It started on a hot afternoon when I walked into his room without knocking. He was sprawled on the bed, shorts shoved down, fist pumping that massive shaft. It was huge, veiny, and throbbing, the head purple and slick with precum. I froze, but my pussy clenched hard.
"Fuck, Mom," he growled, not stopping. His eyes locked on mine as he stroked faster. "You like watching me jerk this big dick?"
I should have left. Instead I stepped closer, licking my lips. "It's so fucking thick. Bigger than your dad's ever was."
He grinned dirty and stood up, cock bobbing heavy between us. "Want a taste?"
I dropped to my knees right there.

My hands wrapped around the base but couldn't meet. I opened wide and sucked the fat head into my mouth, tongue swirling the salty slit. He groaned and thrust, feeding me inch after inch until it hit the back of my throat. I gagged but kept going, drooling down his balls while my free hand rubbed my soaked clit through my panties.
"Jesus, Mom, suck that giant thick cock," he grunted, hands in my hair. I bobbed faster, cheeks hollowed, spit everywhere. My jaw ached but I didn't care. His balls tightened and he flooded my mouth with thick ropes of cum. I swallowed every drop, then licked him clean.
That night he came to my bed. He ripped my nightgown off and spread my legs. "Gonna stretch this pussy with my giant thick cock." He rubbed the fat head up and down my slit, then pushed in slow. I was dripping but it still burned stretching around him. Inch by inch he filled me until his hips met mine. I was stuffed full, moaning like a whore.
He fucked me hard, pounding that giant thick cock deep, balls slapping my ass. "Take it, Mom. Take every inch of your son's cock." I came screaming, pussy spasming around him. He flipped me over, yanked my hips up, and slammed back in from behind. One hand reached around to pinch my clit while the other spanked my ass red. Another orgasm ripped through me.
We didn't stop. Morning, noon, night. In the shower he bent me over and drilled my ass with that giant thick cock, lube and cum running down my thighs. On the kitchen table he ate my pussy then flipped me and fucked me until the wood creaked. Every time he came inside me I begged for more.
Now whenever he walks in the room I pull his cock out and worship it. Sucking, riding, taking it any way he wants. My son's giant thick cock owns me, and I wouldn't have it any other way.