<Tr> <Th> 30 </Th> <Td> 6 </Td> <Td> "The One with the Baby on the Bus" </Td> <Td> Gail Mancuso </Td> <Td> Betsy Borns </Td> <Td> November 2, 1995 (1995 - 11 - 02) </Td> <Td> 457306 </Td> <Td> 30.2 </Td> </Tr> <Tr> <Td_colspan="8"> When Ross has an allergic reaction to Monica's kiwi - lime pie, Chandler and Joey are asked to baby - sit Ross' son, Ben . While using Ben to help them try to pick up girls, they accidentally leave him on a bus . Although they later locate him, they are not sure the baby is really Ben . Phoebe loses her Central Perk singing gig to a professional singer (Chrissie Hynde), and she becomes a street singer in front of the café . Lea Thompson from Caroline in the City makes an appearance, not as her character Caroline but as a woman with a gay brother interested in where Joey and Chandler adopted Ben . Also, Giovanni Ribisi, who in later episodes portrays Frank Buffay Jr., appears in this episode as a stranger who dropped a condom in Phoebe's guitar case and comes back to get it for "an emergency ." The personality of this character is rather similar to Frank Jr's; though not confirmed, they are possibly the same person . Catherine Bell also appears as Robin, one of the girls in the bus . </Td> </Tr> <Tr> <Th> 31 </Th> <Td> 7 </Td> <Td> "The One Where Ross Finds Out" </Td> <Td> Peter Bonerz </Td> <Td> Michael Borkow </Td> <Td> November 9, 1995 (1995 - 11 - 09) </Td> <Td> 457307 </Td> <Td> 30.5 </Td> </Tr> <Tr> <Td_colspan="8"> A drunken Rachel is persuaded to call Ross and reveals her feelings for him on his answering machine . When he finds out, he must make the choice between her and Julie . Meanwhile, Monica finds work as Chandler's personal trainer and Phoebe has a hard time trying to get her boyfriend to have sex with her . She seeks Joey's advice . Ross and Rachel argue, and Ross says that he is not leaving Julie . At the end of the episode Ross and Rachel kiss . </Td> </Tr>

What episode of friends does monica and chandler start dating