Going with the Flow

Mary and Sarah, two housewives, exchange videos of each other masturbating. The action has both women a bit distraught over the intimacy of the action. Neither of them is a lesbian. The epiphany opens a new life for both women and become close friends and live in an open relationship. Mary watches their children; Sarah takes a job as an LPN and leave their husbands. Safely within the new open relationship, Sarah accompanies Mary to a pub where Mary is going to meet up with a nurse, with whom she has a date planned.
While Sarah is at the pub, Cheryl boldly makes a pass at the LPN and the seduction is on. The two, Sarah and Cheryl play mind games with each other and the evening take on a competitive tone, each trying to prove which woman is the most dominating of the two. Following an erotic taxi ride, the two end up at Cheryl's apartment, and the competition begins, and it becomes a question of stamina, to see who can last the longer.