Tell your student he’s going to take private tutoring classes from you from now on if he wants to pass your class. Those tutoring sessions will all focus on teaching him how to punish, humiliate, and own you. Tell him about the harshest punishments you’ve endured and that you expect him do that and worse offering to pay him to use you. Start off in an elegant dress but your new dress code will only be a collar, clamps, and butt plug. At the end of the year, if he passes your class, he gets to own you permanently.