My little sister is always clingy and trying to get close to me. She's cute, but I can't get aroused by her. What's more, I'm a virgin. I want to lose my virginity to my girlfriend Itsuka! So I honestly don't have any interest in my little sister. But that's not the case with my little sister! I woke up in the middle of the night feeling something strange in my lower body, and my little sister had inserted my dick! I tried to stop her in a panic, but it was too late. I was so resigned to losing my virginity unexpectedly that I decided to have sex with my little sister!