Rachel: That'll be nice, actually, to have the apartment to myself for a night.
Phoebe: Oh, yeah, so you can walk around naked.
Rachel: No, so I can be by myself. You know, have a little alone time.
Phoebe: Naked alone time.
Rachel: No, Phoebe. Just because I'm alone doesn't mean I wanna walk around naked. I mean, you live alone, you don't walk around naked.
Phoebe: Uh-huh. Why do you think it takes me so long to answer the door?