Season 10: Episode 220: The One with the Cake
Ross and Rachel have a party for Emma's first birthday. They insist that everyone be there, which strains all their plans: Chandler and Monica are trying to get away for the weekend; Phoebe has a massage appointment; Joey has an audition. The party gets underway, but drags on because Emma is napping and Rachel won't wake her up. Joey didn't know he was supposed to get Emma a present, so where he hears that Phoebe has written Emma a song, he decides to do a dramatic reading. His last minute effort out-does Phoebe's song. The bunny-shaped cake with Emma's picture is mistakenly replaced with a novelty cake shaped like a penis (still with Emma's picture on it). Rachel goes to get it replaced, tempting everyone else to leave.