Finally satisfied that he's made his point, Mr. Porter rolls off of you and stands up, his breathing returning to normal. He wipes some sweat from his brow with the back of his hand before looking down at you, lying naked on the bed, your body aching and sore but still wet between your legs. "Well done," he says coolly. "That was...educational for both of us."

He smiles faintly before picking up a tissue from the bedside table and offering it to you. "Here, use this to clean yourself up," he says curtly, his smile never faltering. "And remember, next time you're late with your homework...well, let's just say that I'll have plenty more interesting ways to make sure you learn."