Season 9: Episode 206: The One with the Blind Dates
Phoebe and Joey set up Rachel and Ross on terrible blind dates, in hopes that they'll realize by comparison how good they are together. Joey arranges for Ross to be stood up, and Phoebe arranges for Rachel to go out with Steve (the Stoned Guy). Monica and Chandler take care of Emma; when she falls asleep, they go into the bedroom to try to make a baby of their own. Joey comes into the apartment and Emma wakes up, so he takes her to his place. Once they return from the bedroom and discover Emma is gone, they panic. Joey tries to get someone to name their first child Joey, to carry on his "family name."