"Yea. You can put me to bed after."

Is she serious? It's hard to say, but that's just part of the fun that comes from dealing with her. And he's the one that brought it up originally, after all.

As for the shirt, it's long enough on her that she doesn't really need to put on bottoms. So the decision is a fairly easy one. Given the choice of staying in her room alone or following Keith elsewhere to get food, she's always going to pick the latter.