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I can't wait for class to end, I've been absolutely desperate to pee for over an hour. I cross my legs, bounce up and down, and grab at my crotch but I can't hang on any longer. I end up dismissing my students early so that I can go to the bathroom, but you follow me. You're a model student, but you ask to follow me into the bathroom and watch me go, and this makes me angry. I threaten you with detention, but you remind me how good a student you are and how hard you work. I'm so desperate to pee now that I let myself be convinced, and you follow me into the bathroom. I pull down my pants and sit on the toilet, but I'm too shy. I tell you again to leave, and we argue, but I'm running out of time. I have no choice but to relent, I pee in front of you. It's clear you like it, and your obvious physical attraction softens me. I end up a little intrigued by it too, and decide that if you are good I will let you watch me tomorrow, and that I will drink a lot of water all day for the right effect.