Phoebe invites everyone to stay at her massage client's beach house for the weekend. In search of her father, Phoebe meets someone who knows details about her family. Rachel expresses her jealousy of Ross' uninhibited girlfriend and Joey nags the friends into agreeing to play strip poker with unintended results. Chandler wonders why Monica doesn't think he's serious after asking if she would ever date him.

Ross chooses between Rachel and his bald-headed girlfriend Bonnie. Phoebe struggles to deal with the revelation that her mother's friend is actually her mother. Monica gets stung by a jellyfish, forcing Chandler and Joey to step up to the plate in order to relieve her pain.

Phoebe considers her options when her brother visits with his new wife and asks her to carry their child. Joey works as a tour guide at Ross's museum and tries to tear down the walls between tour guides and scientists. And Chandler seeks advice from Monica and Rachel after he fears that he will not live up to Kathy's sexual expectations--especially since the last guy she slept with before him was Joey.