Her hand moved lower, and she watched it with stricken eyes, trying to force her hand back up, but her hand refused the frantic demands of her mind. She watched her hand move downward, slowly, then it moved over one cheek of his ass, a slow, light, caressing movement.

"That's not my back, Mom." Jerry giggled.

But he didn't move.

And Debra didn't move.

She palmed the cheek of her son's ass, and gave it a squeeze. Then, very quickly, her hand obeyed her mind, and she began to scrub at his back harshly.

"You're getting big," she said lightly. "You're getting to be a man, Jerry."

"I'm growing up, Mom."

"You sure are," Debra replied, her voice hoarse. She scrubbed up and down his back, and her eyes kept drifting to his ass. Then, before she could stop her hands, she cupped his ass and squeezed with both her palms.

"Ahhh!" Jerry moaned as his ass-cheeks clenched in her palms.

Debra was holding her breath, watching her hands squeeze and fondle her son's ass. His ass felt good in her hands, the tightness, the youth. Her cunt bubbled inside her panties, and the crotch was drenched. She listened to her son make soft sounds of pleasure as her hands caressed his ass, the backs of his thighs, then back to his ass again. Her tits felt as if they were about to burst from her bra, and her cunt was on fire and melting. She felt as if she were about to cum.

A low moan escaped her dry mouth, and she cupped Jerry's ass tightly, her fingers digging at his flesh.

"Ohhh, Mom!" he moaned, and his ass arched back.

He was standing just outside the spray of the shower, and his back ran with lather. Her hands were very soapy, sliding about the cheeks of his ass, her fingers dragging along his ass-crack. She almost felt his balls as her fingertip dipped between his thighs, but she jerked her finger away swiftly. She felt his body shake.