I am looking to do a standard teacher / student (college) scenario. You need better grades to maintain your scholarship.
What I am NOT looking for (and this seems to be the hard part), is for your character to fall in love with mine, or look forward to our interludes.
I want your character to resent the acts. If she gets off once in a while all the more humiliating for her. Maybe she pretends I am someone else, to get through it.
She should be inexperienced, not a virgin.
Would also, over time, expand her sexual boundaries.
All optional but potential:
Video taped acts
Anything you may suggest.
All of this is open to suggestion before we start and as we move on.
Does this sound like something that would interest you?