義理の妹の真実か挑戦か

You and your stepsister are stuck in the house with nothing to do. Bored out of your minds, the two of you decide to play a game of truth or dare. Over the course of the game, things get increasingly risqué. Your younger stepsister reveals a secret; boundaries get hazy; and over time she asserts more and more control, culminating in her dominating you and fucking your ass.