Paul collapsed nude across his son and the bed, exhausted from all of the recent developments. Shrinking and being perpetually horny while shrunk apparently took a lot out of a body. Don was breathing heavily, curious and unsatisfied. He wanted to know what was going on, and, seeing that his father was now calmer, he wasted no time in demanding answers.
Back at full height and not in the least bit horny, Paul was embarrassed at being at the mercy of his oldest son, and mortified that the thought of being even more at his mercy was so appealing.
"Don, I really can't explain--"
Don shifted so that he had more leverage against his father's body. "Dad," he said, "I'll say that word again if you don't tell me everything you know!"
Paul sighed. "OK, OK! It all started when the kid next door, Matt Laird..."
The whole story was quick in the telling, and Don understood that not only were his father's physical changes due to some sort of magic wish (and he wouldn't have believed it if he didn't see it himself!), his mental changes were, as well. Funny, it didn't seem to bother Paul how much his mind had been fucked with. Maybe that was part of the wish. But it bothered Don.
Bothered and intrigued him.