It takes them two weeks to switch Scott and Derek back. Two weeks of Derek in Scott’s body, going through the motions of his life, and it’s surprisingly easy in some ways. He passes three tests in different classes with near to perfect scores and lacrosse practices go smoothly, so no, it isn’t that difficult to blend in while they prepare to switch them back.
What’s hard is watching Stiles. It’s like he’s seeing a side of the kid he’s never bothered to before—and that has to be what it is, even if no one else seems to notice it either—which is why he finds himself sticking up for him to Mr. Harris. He’s watched and listened to that damn chemistry teacher single out and berate Stiles day after day, and nobody says anything. Stiles has almost the whole pack in that class with him, and nobody says anything. Apparently, not even Scott. That Danny kid actually smirks a little, he doesn’t know why everybody thinks he’s such a nice guy.
So Derek snaps, because he can do that in Scott’s body, emotion is expected of him, because nobody seems to notice the flicker of hurt and unhappiness that crosses Stiles’ face when Harris drawls his name out so condescendingly, no one notices the slight souring of his scent or the way his shoulders hunch in on themselves before Stiles can stop them, and Derek can admit he hasn’t been the nicest guy to Stiles. He has his reasons. But he can also admit that Stiles has pulled through for him repeatedly, and Derek’s not going to throw the word trust around yet—maybe never—but he cares about him. He’s never denied that to himself. So he yells at Harris, and lands them both a seat in the principal’s office, waiting to be seen.
“At least the principal isn’t Gerard anymore,” Stiles mutters, not looking at Derek. He hasn’t looked at Derek since Harris ordered them out of the room, although the tips of his ears seem to be getting redder.
“Small favors,” Derek says back, which finally get him a look from Stiles—wide, startled eyes, the beginning twitches of a surprised grin that he returns when Stiles almost tentatively knocks their shoulders together.
“Thanks for sticking up for me.”
Derek shrugs, and doesn’t move away.