I decided that after this earlier comic with Pandora, the first person hit with Kitty's spell absolutely had to be male. Given that this is canon, however, it couldn't be someone who would strongly object and make a big scene about it.
As such, I went with the obvious solution of a friend who totally wishes he could be Kitty's pet cat girl. He's also into dark clothing and makeup and wound up in a maid outfit, which was also an obvious solution. Really, there's nothing in this comic that wasn't an obvious solution, so I apologize for not having a bigger twist here.