Life is that much sweeter when you've got sisterly love...Convinced that her stepsister, Aubrey is a closeted lesbian, Sasha challenges her to a make-out session in the hopes of proving her suspicions correct. After Jessica teaches her stepsister the art of hand-to-hand combat, things get a little too physical between them. With Ashlyn away at college, Bree worries that their forbidden affair might not be the only thing on her stepsister's mind. Abigail realizes that a hidden attraction for her stepsister, Allie may be the reason why none of her relationships with men have worked out.