Immediately after Jay made that wish, someone who had called him a "fag" (moments before he met up with Biff, Athena and Nadine) suddenly started to turn into one. And that person was Steve "The Stud" Farber.
Like usual, Steve was leering at two girls walking by. But just as Jay made his wish, Steve got really dizzy. After the dizzy spell was over, he looked at the two girls who had passed him. But something was wrong. He wasn't turned on by them. Not even in the slightest.
He grabbed his head, wondering what was wrong with him, when suddenly a couple of jocks walked by: Danny Foster and Tom Welles. Steve couldn't take his eyes off of them. They were so hot. Those muscles, that hair ...
Steve shook his head. What the hell is wrong with me? he thought. Then he looked down at something that simply horrified him. The bulge in his pants was growing. He was actually turned on by those guys!