Stiles blinks and looks from Scott to Derek, then back again. This is probably going to be awkward. ...okay, it is awkward, but what's he supposed to say? They did kinda... well, the whole bite thing? Pretty much not okay, and while Stiles has had months to get through everything with Derek, Scott hasn't had the same luxury. And it's not really something that Stiles can explain away for him.

He looks over at Derek and reaches up to pat his hand on the back of his neck despite how firm the grip is, patting the back of it reassuringly and resting it there while he talks. He doesn't make a move away from Derek, but he doesn't move away from Scott, either. "I, uh. I don't know what you know about here, man, but Derek and I kinda popped up when things were, uh. 'Tense'? That's a good way to put it, right?" He looks over at Derek for a moment before realizing this probably is something he's not gonna want confirmation on before looking away quickly, head ducked a little.