It goes like this: Stiles is broke, and also is hungry. This is not a particularly unique set of circumstances, but what is unique is that he and Derek have just gotten off patrol duty, and Paco’s has a sign in the window that says “Proudly Participating in Wedding Week!”
"Dude," Stiles says, stopping short. "Wedding week!"
"What the hell is that?" Derek says, in that tone he uses for everything Stiles says, the tone that says "you’re boring and I’m humoring you," but Stiles knows it’s an act. If nothing else, Stiles is never boring.
"Wedding Week," Stiles says with a dramatic flourish, "is this week where all the restaurants in Beacon Hills offer free dinners to engaged couples to show off their catering options."
"Okay," Derek says, after a pause. "And this is important how?"
Stiles opens his mouth, points inside. “Tacoooooos,” he sings out, and then without another word, grabs Derek’s arm and drags him into the restaurant.