Susan and Carter treat a newlywed couple where the wife may be allergic to her husband's semen. Carter later tells her about the time he masturbated on a train to Seattle; this somehow turns her on, and they kiss. Weaver asks firefighter Sandy Lopez out. Mark and Gallant treat members of a boxing family. Rachel's boyfriend is admitted with a broken ankle and tests positive for marijuana; she comes out clean though. Elizabeth tends to a comatose woman whose husband will only agree to a risky procedure to harvest her organs. Abby openly questions Nicole's pregnancy; Nicole confesses to Luka that she was faking it and that she plans to move to Montreal. Benton's custody trial for Reese is hampered by his long hours. Cleo's testimony doesn't go well either.