The One With Monica's Boots - S8-E10
Corrected entry: In The One With Monica's Boots, Joey finds out that his younger sister Deena is pregnant. Joey then storms off to find her boyfriend Bobby and manages to find him. How would he be able to, though? It is made clear that Joey has never met Bobby before, therefore he would not know what he looks like or where to find him. Even if he did some how manage to find him how did he manage to do it so quickly?
Correction: It is probably likely that he went down to their neighborhood and asked around, it isn't that hard to locate someone if you have their entire name (which Deena gave him). Also, you don't know how long it took him. Considering that the scene that shows Joey lecturing both Bobby and Deena came after the scene that shows Monica and Chandler at the party at nighttime, one can conclude that it took Joey a while to locate Bobby.
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