She wasn't sure just how much they'd seen, but she told the kids that she'd been exercising in the nude, as her doctor had prescribed, and that it had been very naughty of them to spy on her.

Billy simply rolled his eyes and dug his elbows into little Cindy's ribs, and that had made Sally furious.

"I guess you don't understand the seriousness of what you did!" she had sputtered. "Go to your rooms. No dinner for either of you tonight!"

All had been quiet at breakfast the next morning, but Sally could feel the children staring at her whenever she turned her back to them. What really ate at her was the thought that they might tell Jack what they'd seen when he got back from the motel owners' convention tomorrow. And if they did tell him, would he believe them?

She shuddered at the thought, nearly spilling the tea. Quickly, she put the cup to her lips and took a sip of the soothing brew.

At that moment, Billy walked into the kitchen. He was dressed in a T-shirt and last year's cut-offs, and Sally realized that he'd grown a good four inches since the year before; the cut-offs were way too short.

"About yesterday afternoon, Billy," she blurted.

"Yeah," Billy said, a smile crossing his face. "You sure do have a beautiful body, Mom!" He came closer, put a hand on her shoulder, then leaned down and kissed her cheek.

Sally was so shocked, she couldn't say a word.

"Yup, those girls in Daddy's Playboy don't even come close to you, Mom."

"Billy! Shame on you!"

Billy kept smiling. He grabbed Sally's hand, and before she knew what was happening, he put it on the crotch of his shorts. She could feel his cock beneath the rough denim – hard and throbbing.

"Young man – what do you think you're doing?"

"Take off your clothes, Mom," he rasped, eyeing her up and down.

"How dare you talk to your mother that way! You're just a boy!" She tried to yank her hand out of his, but he held it tightly over his prick.