Since folks complained about the use of initials in my first story, I'll use full made-up names here.
Julia and I had been together for a couple of years prior to starting classes at the University of Hawaii at Manoa, having met through mutual friends in community college. Her most persistent fantasy involved being treated as property, and she trusted me enough that she would make herself available for whatever I ordered of her. This was not a part of our sex life all of the time, but it would frequently come into play, and when I was lucky enough to have a dorm room to myself for a couple of semesters, it grew into a much more regular aspect of our time together.