Sisterly Love (2014)

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.

Unfortunately the movie Sisterly Love is not yet available on HBO Max.