ZUKO-063 Making a play because my sister and her friend were too erotic

Synopsis

Your sister, Riku, is a bright, lively and honest school girl. One day when your parents went out and stretched their feathers, your silence quickly disappeared with a friend brought by her sister. While being forced to teach homework, I was forced to do H things by running through, or when I was worried and went to check the bath, I was taken to a group of naked girls ... Finally, excessive fanning As a result, I end up having sex with my real sister without wearing a condom.