Avery Black and Scarlett Alexis, two hot teen stepsisters, find themselves in a mundane afternoon, ignored by their stepdad, Donnie Rock. In a fit of boredom, they strike a deal: whoever wins a game gets to choose the other's punishment. The winner, Donnie, surprises them with a twisted game of his own - a free use round where the teens must pleasure him anytime he pleases. Avery and Scarlett, initially shocked, agree, leading to a steamy, multitasking session of fucking and sucking.