Peter sits down in the chair and grabs his muffin again. And as Liz talks, he tries to imagine what her room looks like. It's probably nothing like how it really looks, but it's a nice image. The sort of place he could see there being a lot of space for homework and reading.

"That's really awesome," Peter says. "When I was a kid, I always wanted those glow-in-the-dark stars that you put up on your ceiling." By reflex, his eyes turn up to the ceiling of his new room. "I wanted to actually put them up like the actual constellations."

Peter was a bit of an astronomy nerd.