Summer Stevens, a loving stepmother to Katie Kush and David, is secretly having an affair with Sophia Locke, whom she met at a yoga class. Summer invites Sophia for lesbian fun and fucks her in her room, unaware that Katie and David are listening. As the two women engage in raunchy sex, things get out of control, and the young step-siblings have to decide whether to call off the affair or turn it into a kinky foursome.
