Season 10: Episode 219: The One with Ross's Tan
Joey and Rachel have their first official date, but when it comes to getting physical, they just don't feel at ease. Ross likes Monica's sprayed-on tan, so he decides to get one. But confusion about the instructions (and whether to count "Mississippily") lead to multiple doses on his front and none on his back. An old friend (Amanda) of Monica's and Phoebe's moves back into town from England. They try to cut her out of their lives by ignoring her, without success. It comes out that years before, Phoebe tried to do the same to Monica. Joey and Rachel realize their relationship is not going to work.