Stiles, Peter and others in “Unfinished Business”

Stiles

Okay, so if Derek was a sophomore back then, how old was he? How old were you? How old are you now?

Peter

Not as young as we could have been, but not as old as you might think.

Stiles

Wow, that was frustratingly vague. [He turns to Cora] How old are you?

Cora

I'm seventeen.

Stiles

See? That's an answer. That's how we answer people.

Cora

Well, seventeen how you'd measure in years...

Stiles

Alright, I'm just gonna drop it.