Chandler: Should we tell Rachel there's an empty private room right next door to hers?
Monica: We could. Or we could have sex in it.
Chandler: Well, let me think about that. While I remove my pants.
Monica: Okay, mister. Fertilize me.
[nasal laughter]
Monica: Does that sound like Janice?
Chandler: If it's not, then there's two of them. And that would mean it's the end of the world.