There was a slight tearing sound, and with a sense of embarrassment, she realized the shirt had become untied. Her tits, naked, were pressing against Mike's firm, naked chest. She felt her nipples stiffen as they poked at his flesh. Then she felt Mike moving, his hips rubbing. She felt the hardness of his cock as it slipped against her naked thigh. Feeling that his cock was hard, she knew Mike had to be aware of her naked tits on his chest, and of her hot thighs on his cock. She lifted her eyes and looked straight into his.

Mike was gazing down at his mother's face, his expression confused.

Donna lay still, and felt her son rubbing his cock at her thigh. She felt the wetness as his piss-hole scraped near the leg of her shorts. She felt breathless, excited. Her body trembled as her tongue moved over her lips. She said nothing.

Then, as if realizing, finally, what was happening, Mike lifted. Not all the way, just his upper body. His cock seemed to move, and Donna gasped as she felt his cock-head push at the crotch of her shorts.

"Oh!" Ted gasped as his brother lifted. He saw his mother's tits, all naked, her shirt wide open. He stared at her stiff nipples, then jumped up and turned away, blushing.

Donna, still staring into her oldest son's eyes, left her arms above her head. Mike, with the head of his cock pushing against the crotch of her shorts, looked down at her exposed tits for a long time, then lifted his eyes to his mother's again.

"Mike…" she said, her voice husky.

"I'm sorry, Mom," he murmured and slid from her, moving in such a way his cock was hidden from her.

Ted and Mike walked from the living room, and Donna remained on the floor, unmoving, but trembling. Her tits lifted as she began to breathe deeply. After a moment she sat up. Her cunt was throbbing hotly and it felt as if Mike's cock was still pressing there. She saw the wetness on her inner thigh, the wetness of her son's cock.