The annoying stepsister, dressed provocatively, knocks on the protagonist's door asking to be let in. Frustrated by her constant disruptions, he ignores her pleas. She begins to whine and plead more loudly, threatening to tell their parents about his activities inside the room. Despite his irritation, he continues to ignore her. Finally, in desperation, she tries the door handle but it's locked. She starts banging on the door and screaming for him to let her in. As the noise escalates, the protagonist becomes aroused by her helplessness and decides to punish her by not responding. Her pleas turn into sobs as she realizes she has no control over the situation.
