Phoebe: Because you'll date her once, sleep with her and then forget she exists!
Joey: Oh, name one friend of yours that I did that with.
Phoebe: Mandy.
Joey: Mandy, uh? Uh... really hot blonde, big boobs?
Phoebe: No.
Joey: I know why I don't remember her, huh? (he winks at Rachel)
Rachel: Do you think I'm someone else?