GVG-067 An uncle and his son can't help but get a full erection when they see their niece growing into an adult body. Airi Sato

When the uncle returns home with his son, he is surprised at how much his niece has grown while they are bathing together that night. Ever since seeing her body, the uncle has become sexually aroused by her, not only because of her bulging breasts but also because of the pubic hair growing between her legs. He ends up assaulting her in the middle of the night. After that, his son also starts playing pranks on his niece, and the two of them end up toying with her...