Phoebe, like Ross and Rachel has lived with the other five Friends cast members.

When Phoebe became pregnant during Season 4 it was to account for Lisa Kudrow's actual pregnancy. Kudrow gave birth to a boy before the start of Season 5.

When Phoebe is surrogate mother to her brother's triplets, Friends is alluding to the mythical

Greek goddess Phoebe who bore children with her brother Coeus.

Phoebe was married to a gay ice skater, but divorced him later.

Phoebe married someone in Las Vegas once, thinking that if she did that she would only be married in Vegas.