WANZ-296 A cousin's daughter who knows nothing about sex, Minato Riku

The cousin who came to stay at our house from the countryside was like a boy. She wandered around in just her panties, unashamedly joined us in the bath, and casually touched my penis. Yes, no one had taught her about 'sex.' A girl who grew up physically but remained completely ignorant of sex, she indifferently accepted our family's hard rods and white fluid. But she gradually began to understand how good it feels when the rod goes in and out…