Billy flung his arms around his mother, kissing her frantically, sucking her tongue deep. The wet heat of his mother's cunt gripping his cock was too much. He sucked her tongue deeply, and suddenly sent a geyser of come juice into her pussy.

"Don't worry," she whispered, wiggling her ass and pressing her cunt onto his cock. "You'll come again, baby."

Susan wiggled and squirmed on Billy's cock and his prick didn't have a chance to become limp. Her hot cunt, the hairy pussy lips squeezing like a fist, kept his cock hard. Running a hand down past her ass, Susan stroked at his young balls, pressing them into the spreading crack of her ass for a moment. Her tongue licked about Billy's face.

"Now, Billy!" she hissed. "Now!"

Susan began to bounce up and down on her son's cock, wiggling and squirming. Again she lifted her face to the sun, eyes closed, her expression dreamy. Billy stared at his mother's tits, watching them jiggle with movement. Placing his hands on her gyrating hips, he gritted his teeth in agonized delight.

Moving her hands from his shoulders under the water, Susan pressed Billy's hands to her ass. When he clutched at her shaking asscheeks tightly, she put her hands back on his shoulders, her fingers digging hard.

"Hold my ass, darling!" she gasped, churning up and down on his throbbing cock. "Hold Mother's hot ass tight! Oooo, your cock is so hard, Billy! Hold my hot ass… I'm going to fuck your sweet cock off!"

Bob could see the water churning about them, gripping his cock tightly. Although he couldn't see his mothers naked ass moving, the way she moved her shoulders, the way she clawed at his brother's flesh, her lovely face to the sun, was enough to send perverse pleasure through his balls. He didn't want to jerk off – he wanted pussy. Bob moved close, rubbing his cock against his mater's twisting ass beneath the water.