You caught me masturbating in my office at school. We make a deal that you promise not to tell anyone and I give you a bit of sex education. I slowly reveal my parts (starting from titties, then asshole, then pussy lips, then clitoris, and finally pee hole). After showing everything off, I pee in my panties. I promise you that every day after school, our roles will reverse and I will become the student, because obviously I need an adult man to teach me how to pee like an adult girl.