She was his mother, that was all. When he had first noticed her thighs, her tits straining without a bra, he had learned that she was desirable not only as a mother, but as a beautiful woman who could create dull pains in his balls. Since he had a problem keeping his cock out of Sally's cunt now that they were fucking, he began to wonder why he never saw his mother with a man. At his age, he thought everyone wanted to fuck more than anything in the world. The more he saw of his mother's body, the more he felt like touching her.

Now, seeing her twisting her ass about, banging her cunt up and down, he wanted to touch her more then ever. He could see the bottom half of her panties and, when she opened her legs, the crotch stretched tight, the curling hairs of her cunt poking out. And his cock had become hard, very hard.

And then he heard her sobs turn into words.

"Fuck me… fuck me!"

His desire became intensely pronounced as he watched and listened.

"Hot cunt… hard cock… fuck me!"

That was when he stepped into her bedroom, his eyes staring fixedly at her revealed

thighs and panties, her squirming, twisting ass. His cock was bulging out very hard, his balls tight at the base of his prick.

Karen, not knowing her son was watching, whipped her ass up and down, making tight screwing motions, slamming her bubbling cunt against the, mattress.

"Fuck me, fuck me, fuck me!" she said over and over in a hot, husky voice. "Ohhhh, fuck my cunt… fuck my pussy hard!"

Brett was almost there. He could have reached out and touched her feet, but that was where he stopped, his gaze burning upon her grinding ass, seeing the smooth, creamy half moons that were exposed since her panties had drawn into the crack of her ass.

"Fuck me… oh, fuck me!" Karen moaned. "I need it so much! Fuck me… fuck me, Brett!"

Karen may not have known what she said, but her son certainly heard her. His name came like a blow to him, a blow that rocked him on his heels, and made his cock throb hard inside his pants.