"No," he replied.

On a sudden impulse, she held her arms out to him. Billy moved against his mother, wrapping his arms about her narrow waist. She hugged his young beardless face against her swelling tits, caressing his cheek. Susan kissed the top of his head, feeling his body tremble.

"You feel it, too?" she murmured into his hair. "You feel the same thing I feel, don't you, Billy?"

His muffled reply came to her. "Yes, Mom."

"Does it make you feel…ashamed?"

"Oh, no! It makes me feel good!"

Susan felt his hard cock pressing against her thigh, burning there, sending tingles of delight up and down her spine. Her cunt boiled, flowed, became very wet. Her hands left his head and moved slowly down his back. Just below his belt she hesitated. Sucking in a deep breath, she ran both of her hands over his tight, little ass, then cupped the cheeks. Her fingers squeezed his ass, drawing him tight against her thigh, his cock throbbing crazily against her.

"Oh, Mom!" he groaned, rubbing his cock there.

Just enjoy it, darling," she whispered, kissing the top of his head again. She moved her thigh, rubbing it about his cock, feeling it pulsate. "Enjoy it all, baby. I'll make you feel good, so very good!"

Billy began to pump against his mother's thigh, his arms tight about her waist, his breath burning at the upper swell of her tits. He began to breathe faster, his hips moving in a frenzy now. Susan clung to his tight ass with both hands, hunching her thigh into his cock.

Then Billy gave a muffled groan.

Susan felt his cock jerking, then the wetness came through his pants and smeared at her thigh. She smiled with sensual delight, knowing he had come, that she had helped her son come against her thigh. She held him for a long time, feeling him, loving him, then let him go.

"I think you better go clean up," she whispered. "You just made a mess in your pants, baby."