Well, that's good because she's not amused either. Her eyes narrow for a moment, and she doesn't let go, but at least she's not using her claws because that could get messy. Really, unfortunately messy.

"First name or last name."

It's not a question, it's a demand, and she really should have better people skills than this by now, but the rift didn't see fit to drop in Stiles after her to temper her ... well, temper.