Of course it was that buff Jock boy. Hmmm. The wizard remembered that the boy had been a little too cokcy looking and decided to explain that the glove could get anyone to have sex with him. Of course this was just a joke, because anyone he touched he would become. The boy seemed interested but didn't have enough money.
"I wonder if that jock stole it?" pondered the wizard.
So the wizard played a game of his own. He cast a spell on the glove so that it would slowly change him instead of change him all at once.
"That should do it for an annoying jock..." the wizard was happy.