ROYD-318 · Daily Nipple Harassment of My Pure and Shy Stepsister Made Her Hypersensitive and Quick to Cum! She Transformed Into a Lewd Girl Who Cums With a Dirty Face - Nao Satsuki

Due to our parents' remarriage, I suddenly got a stepsister. She had an amazing transparency and was incredibly cute, and honestly, I wanted to do something about her. My sister was very shy, easily pushed around, and a timid coward who couldn't express her own opinion. That's why, even though I touched her nipples every single day from morning till night, far from complaining, she eventually started to feel it, to the point where she'd drool and twitch in response... Her nipple sensitivity kept increasing, and in the end, she even came to me on her own to beg me to touch them. And this is despite her having a boyfriend? What an absolute nympho.