Suddenly his body changed, or his clothes did at least. They disappeared from his body. He was briefly completely naked. Before he could cover his crotch, something appeared on his lower half.
It was white. It had a plastic covering to it. It was very thick too. That was when he realized what it was.
He realized he was in a disposable diaper. However, this diaper wasn't baby sized. It was teenager sized, like it was meant for him.
Sam smiled at him. Then she patted the crotch of his diaper. "Just like how you should be."
Then...