As she held his cock tightly, Steve began to fuck back and forth in her fist. His finger plunged faster into her steaming, wet pussy as he sucked her nipple. Mary felt his cock throbbing in her fist, and she didn't want him to come off onto the bed.

"Get on top of me, honey," she whispered in a thick voice. "Get on top of me… lay on me Steve."

Her son climbed onto her, and she spread her legs for him. She felt his cock rubbing against the mound of her burning cunt. He kept his mouth on her tits sucking from one nipple to the other. Mary ran her hands down his back, over the swell of his ass cheeks, twisting her crotch about, pressing against his cock, enjoying the throbbing of it on her cunt hair. If he was going to come, she wanted it to splash onto her body instead of messing up the sheets. She felt her son shoving and grinding his cock against her cunt hair, and his balls seemed to be rubbing at the puffy wetness of her pussy lips.

Mary began to grind with him, one hand on the back of his head now, the other clutching his bunching ass cheek. She was gasping with pleasure, her hot breath mingling with his grunts of delight. His hard cock rubbed along her steamy clit, pushing against it. They were twisting and grinding against each other furiously now.

And then it happened. As her son lifted his ass to push against her body, she drew her own ass back, preparing to return the pressure as he came down. Steve's cock slipped into her cunt. Both went rigid.

"Oh!" Mary gasped, her eyes popping in the darkness.

"Uh!" Steve moaned.

He started to withdraw, but Mary clutched at his ass cheek, her fingers digging into his jockey shorts, holding him still. Her cunt clutched around her son's cock.