Pepper Potts: What the... What is that? You're wearing this in the house now? What is that, like Mark 15?

Tony Stark: Yeah. Something like that. (We can see the "Mark 42" label on his suit) You know, everybody needs a hobby.

Pepper Potts: And you have to wear your hobby in the living room?

Tony Stark: Just breaking it in. You know, it's always a little, pinchy in the gooey bag at first so...