Alexandra Margulies

Chandler's romantic marriage proposal is ruined when Monica's former boyfriend returns, Joey accidentally buys a boat, and a dormitory incident reminds Ross how young his girlfriend is.

Ross' doctoral dissertation is stored in a remote corner of the university library where students frequently have sex; when Rachel and Phoebe bond with Joey's date, they try to convince him to continue seeing her.

When Rachel returns to her office to show off baby Emma, she is surprised to find handsome temp Gavin has been doing her job while she has been away on maternity leave. Their immediate war of wills prompts Rachel to make a rash decision.

When Scully and Doggett are contacted by a man who claims his wife was murdered shortly after giving birth to an alien baby, Scully digs deeper into reports of alien fertilisation on humans, and begins to question her own pregnancy.