The One with Phoebe's Husband

Plot:

Six years Phoebe got married to a gay friend of hers from Canada who needed a green card. She used to be in love with him but didn't tell her friends that they are married. Because Monica is upset that Phoebe didn't tell her she got married they start yelling the others secrets out: the panties on the telephone pole are Monica's from sex on the balcony, Chandler has a third nipple, Joey acted in a porn movie. Ross tells Rachel he hasn't had sex with Julie because he has only been with one woman in his life and she turned out to be a lesbian. The gang watches Joey's porn. Meanwhile Phoebe's husband tells her he isn't gay and needs a divorce because he is getting married again. Rachel tries to talk Ross out of sleeping with Julie but doesn't succeed.