Daniel, ever the curious voyeur, gets more than he bargained for when he sneaks into his stepsister's room. Marianne, clad in lacy lingerie, is in the throes of self-pleasure, her fingers delving into her wetness. Daniel's cock twitches at the sight, tenting his pants. Marianne catches him, but instead of anger, she sees opportunity. She beckons him closer, inviting him to touch her. His restraint crumbles, and he gives in, fucking her with an intensity that surprises them both.