"But I thought…"

"Baby, that's one of the best parts," she said, sliding her hands into the waist of his trunks to feel the skin of his young ass. "It feels good, and it makes me… you know, come very hard."

Bob pulled his cock from his mother's cunt, sitting back on his heels. He looked at her pussy, seeing her cunt still quiver. Susan sat up, stradling the lounge. She held his wet cock a moment, then leaned forward and kissed his lips in a tender way.

"Oh, my God!" she gasped, quickly pulling her wraparound about her shoulders. "I forgot about Pamie and Billy. Oh, I hope they weren't watching."

"They weren't," Bob said.

"How can you be so sure?" Susan looked toward the house, searching the windows.

"I'll show you, Mom," he said, standing up. His trunks were caught to one side, his cock and balls showing, but he didn't seem to mind. Taking her hand, he led her into the house and down the hall.

Susan thought she knew why by the time they stopped at her daughter's bedroom door. Bob pressed the door open, and Susan shoved a hand to her throat.

There, an Pamie's bed, was her daughter and other son. Pamie had remembered her bikini and was totally naked. She was on her hands and knees, and Billy, his trunks dangling from one knee, was fucking his sister.

Susan couldn't breathe. She stared fixedly at Billy's cock fucking back and forth. She seemed mesmerized, watching her young daughter tossing her uplifted ass about and squealing with ecstasy. She was pushing her naked ass back to meet Billy's cock, twisting very lewdly. Susan's eyes became glazed, but focused clearly upon her daughter's grinding, naked ass, upon her youngest son's cock poking into the little cunt. Billy was pipping his sister's twisting hips, his mouth open as he watched his cock fucking into her pussy. She could hear their heavy breathing, the squeals of her daughter. She could hardly believe what she was seeing. It was as if some of her erotic thoughts were coming true. She began to tremble as the heat swelled inside her cunt again. She slipped her hand into her wraparound and smeared Bob's come juice about her stomach and through her silky cunt hair.