Tina tries to get over her concerns about the new sperm donor. Tim decides to throw a dinner party and invites Marina, making Jenny feel uncomfortable. Alice runs into her abusive ex-girlfriend. Dana has her eye on a chef, but is hesitant to make a move on her.

Bette engages in a battle with the chairman of the gallery board who wants to close down the gallery. Alice rekindles her relationship with an ex-girlfriend, despite the objections of her friends. Jenny tries to deny her feelings for Marina, and Dana finally gets a date with Lara.

Jenny confides in her old college professor about her affair with Marina. Bette receives some delightful news. Dana's fears of being outed continue as she juggles between her tennis career and Lara. Alice's mother comes to stay with her daughter.

Dana is invited to a dinner party for Subaru, who want to sponsor her tennis career, but Lara is hurt when Dana takes her male doubles partner instead of her. Meanwhile, Tim is shocked when he catches Marina and Jenny in a compromising position, Alice tries to sort out the problems with her mother, and Bette tells her father about Tina's pregnancy, but is upset by his reaction.

After arriving home, Tim starts to worry when he learns that Jenny has vanished. Bette travels to New York for an art opening and her relationship with Tina is put to the test. Back in Los Angeles, the sperm donor's girlfriend discovers a lonely Tina and starts to harass her.

Tina and Bette are stunned when their friends say their impending parenthood has made them boring. Jenny stays at Marina's when Tim throws her out but she is shocked to learn the truth about Marina's personal life. Dana rejects Lara as her sponsorship contract hangs on the line.

When Jenny's old roommate (guest star Sarah Strange) from college comes to stay, Jenny decides to use the opportunity to reveal the details about her affair with Marina. Bette and Tina join a group in preparation for becoming parents, and Dana faces a tough time when she must come out to her conservative parents.

Shane gets the opportunity to style a high-profile client's hair, Bette and Tina receive some devastating news, Jenny goes to dinner with Marina and Francesca, and Alice decides that her relationship with Lisa is too complex.