The one with the truth about london is American Sitcom "Friends"'s Season 7 episode 17. Plot Truth about London (Monica, Chandler, Joey and Phoebe) Monica and Chandler tells everyone what happened in London with their secret relationship. Chandler discovers that night Monica was not looking for Chandler, instead she was looking for Joey. === Ben at "Fun at Rachel's" (Ross, Carol, Rachel and Ben) === Ross wants Rachel to babysit Ben, and Rachel teaches him pranks. Rachel figures out that Ross doesn't like pranks so (while ben is at Carol's home) she goes to Carol's home and tells Ben to stop pranking people. Credits Main Cast David Schiwmmer (Ross) Courtney Cox (Monica) Jenifer Aniston (Rachel) Matthew Perry (Chandler) Lisa Kudrow (Phoebe) Matt Leblanc (Joey) Other cast members Cole Sprouse (credited Cole Mitchell Sprouse) (Ben) Jane Sibbet (Carol) Other Created by David Crane and Marta Kuaffman