She has been a bad girl and she should be punished. Why don’t you lift her skirt and finger her? Or maybe make her remove her clothes and fuck her in different positions? That will definitely teach her a lesson. She should be disciplined and you being her teacher should be doing it. Her pussy and her ass must be punished for dressing slutty and flirting with you and other boys of the class. She deserves to be fucked and spanked for her bad behavior.