I will be attending a prep school in Tokyo from this spring, and I will be staying at my uncle's house. I never thought that my cousin's sister, whom I met for the first time in a while, would become so bold... I was scared of her sleeping sister, but she invited me to have sex with her instead, and she showed me her masturbation on purpose, and I squirted from just my nipples, and my friend who was proud of his sexiness was eaten by her sister instead, and every day is too stimulating!