ROYD-338 I've been sexually harassing my clear and super shy stepsister every day, and she's become super sensitive and prone to premature ejaculation, cumming non-stop! She changes into a perverted girl with a vulgar face, cumming non-stop. Satou Aru.

My parents remarried and suddenly I had a step-sister. It's deathly cute. And I'm quite timid. It's easy to get carried away, and it's extremely vulnerable to pressure. So, I decided to go and tease my sister day in and day out. Morning, afternoon, while sleeping, even while taking a bath... Then, what do you think, the other side will ask for teasing! I have become such a lewd girl that I can no longer live without titillation. However, she has grown into a child who can express her own opinions clearly enough to say, ``I want you to touch my nipples.''