A man with glasses takes on the role of teacher, initiating a teen girl into the world of rough sex. He starts with a lesson in blowjobs, holding her hand as she tentatively takes his cock into her mouth. She's a quick learner, her tight cunt soon dripping wet and ready for the main lesson - a hard, doggystyle fuck. He pounds into her, making her moan and squirm, teaching her the art of rough sex.