She walked directly to their room on the far side of the pool. Unlocking the door, she stood to one side so the boy could enter. He brushed against her, leaving water on her thigh. The water didn't matter, but Mary was startled to find a rippling tingle in her body. Steve stood in the large room, looking at his mother. She was almost a foot taller than he, and glared at him.
"I'm in trouble, huh, Mom?" he asked.
"You damn well are," she said in tight voiced anger. "What were you trying to do out there… break your silly neck?"
"Aw, I just wanted to try the high board," he whined, shuffling his feet.
"Don't try to lie to me, young man," Mary said. "I saw that little twit watching you. You were showing off, that's what you were doing. Trying to break your neck just because some little tease is impressed. I'm going to paddle you, Steve."
"Mom, I'm too old for that," he exclaimed, but there was fear in his eyes.
"Who says so?"
He couldn't meet her gaze. For a moment Mary almost gave in, but she felt he had to be punished. Before she realized it, she commanded: "Drop those trunks."
Steve looked at his mother, wide-eyed.
"That's right," she said. "On your bare ass, young man."
"I'm not a baby, Mom," he protested.
"That's what you think!" she snapped. "Drop them… now!"
She stood rigid, watching as he turned his back and shoved the wet trunks down. Her expression softened as his ass was exposed. Steve had a finely shaped ass; Mary wanted to caress it instead of spank it. When he stepped out of the trunks, she ordered, her voice trembling: "Lean over the bed."
Steve looked at her over his shoulder, embarrassed to be naked in front of her. But he obeyed. Mary stood behind the boy, her eyes now hot as she gazed at his ass. There was a strange, bubbling sensation between her thighs, and she knew the sight of her son's young ass was the cause of it. She bent over, raising her hand, but didn't bring it down on his naked ass. A glimpse of his balls kept her hand poised in mid air. She became breathless with sudden desire.