S2, E13: When an earthquake causes plumbing damage in Judith's home, Alan allows her to move into the beach house temporarily--much to Charlie's displeasure. After a few days, Charlie and Jake can no longer bear Judith's presence, and though he pretends otherwise, Alan is jealous when Judith goes on a date with another man. He gets so upset that he goes to stay at Judith's house until Charlie arranges a date for Alan with a very beautiful and very young woman. Seeing Alan with this sexy girl, Judith quickly packs her belongings and returns to her own home. But unfortunately for Charlie, he's going to have to keep paying the young lady big money because Alan really likes her.