During the hot summer vacation, my younger sister takes off her clothes and wanders around half-naked even though I'm inside the house! - I pretended not to see it, but the naked young body that came into my line of sight unconsciously touched my lower body and made me erect! - My younger sister finds out about it and plays with it for fun, saying, Pervert! How dare you put your dick up while looking at my younger sister!'' #GS-207