Season 10: Episode 225: The One with the Birth Mother
Chandler and Monica go to Ohio to be interviewed by the birth mother (Erica) of their prospective child. Due to a mix-up, she thinks Chandler is a doctor and Monica a reverend. Monica wants to let the illusion continue, but Chandler insists on telling the truth, which almost costs them the baby. Joey persuades a reluctant Phoebe to set him up with her friend, Sarah. Joey is hesitant to call Sarah for a second date, because during dinner she took some fries from his plate (Joey doesn't share food). Ross seeks fashion advice from Rachel and Phoebe for an upcoming date (with Joan), so they take him shopping. Their bags get mixed up; Ross ends up wearing a women's blouse -- the same blouse Joan is wearing.