ROYD-318 If I kept teasing my pure and extremely shy stepsister every day, she became super sensitive and prone to quick release, climaxing over and over! She transformed into a perverted girl who keeps climaxing with a shameless expression. Nanao Satsuki

After our parents remarried, I suddenly got a new stepsister. She had an incredibly pure, clear look and was unbelievably cute, and honestly, I wanted to do something about it. My stepsister was very shy, easily influenced, and too timid to speak up for herself. So even when I kept touching her inappropriately day after day from morning to night, she never complained. Before long, she started reacting to it, even drooling and trembling. Her sensitivity kept increasing, and in the end, she even came to me on her own and asked me to keep touching her. And this was despite the fact that she already had a boyfriend. She was a complete pervert.