He has, thank you, Derek, but he chooses to ignore it. Per usual. And it seems to work, since Derek has caved in to his superior friendship skills and has agreed to a piece. Ha ha. Deal with it, Derek. Stiles is your buddy now.

He moves to begin cutting out a large piece of pie (you didn't clarify, buddy oh buddy face), then another slightly smaller piece for himself before pouring out the coffee. He leaves Derek to add what he wants to his before he goes for the whipped cream. "Want some whippy goodness?"