I found a slightly erotic book with a lot of nudity in the library, so I input it in my mind and masturbated when I got home, and one day I saw a serious-looking high school girl reading the book! I was watching her, wondering if she would return it quickly, but the girl was excited by the contents and fidgeted and wet her panties in an excited state! When a high school girl stares at me like that...I can't stop when she asks for my dick! I had sex in the library while covering the mouth of a high school girl who was moaning because she felt so much! I was worried that I would be found out!