They were both naked now, with Bob's trunks floating on the water. Each time he fucked in his mother's cunt, the checks of her ass jiggled, and she grunted with pleasure.

"Ooooo, Bob," she gurgled. "You stay so damned hard! I love it, too. Ohhh, baby, fuck me! I can't get enough fucking! I love the way your cock stuffs my hot cunt… and you go so fucking deep!"

"I like your cunt, Mom," Bob snorted, "it's so wet and hot! Your pussy is different than Pamie's, but I can't say why."

"I understand," she panted, lifting her ass to his cock. "Oh, ram it to me, baby! Fuck me! My cunt is so hungry for cock… I could fuck all day!"

Time was forgotten, and Susan felt as if she was in heaven, a heaven filled with hard cocks, all of them fucking her, coming in her. There was a slightly raw feeling in her cunt, but she didn't care. Her son could fuck her cunt until she walked spraddle-legged, and still she would want more.

She rested her cheek on the hard deck, eyes closed, wiggling her naked ass into his stabbing cock. At first she didn't notice the sound, then she sensed the presence of someone, else. She opened her eyes and looked up.

"Oh?" she shouted.

She shoved back, pushing Bob away, sliding under the water swiftly, her face burning.

Her youngest son, Billy, stood there watching.

"Go away, Billy!" she wailed, wrapping her arms about her tits, even though they were flow under water. "Please, go away!"

"I don't wanna, Mother," he said, his eyes huge. "I wanna stay here."

Peeking up, Susan saw his cock throbbing against his pants. "What did you see? How long have you been standing there?"