A story should behave as the story dictates. Some stories are quick jolts to the groin and others are more cerebral. There are nights when one will do well for me and nights when the other is better.

My recomendation is to write your story - or let it write itself. Too many people get hung up, I think, on the sexual aspects of BDSM or D/s and forget the cerebral and other erotic elements. Furthermore, erotica does not have to contain any sex, whatsoever. It just needs life.

Sure, you may get some dings for your story not being sexual enough. However, enough of the patrons of this site are authors, as well as critics. These authors respect and enjoy a well crafted tale and will say so. I can tell you, too, that a review of an 8 by a quality author with commentary is far more uplifting than a review of a 10 with a "good story" attached to it.

I suggest you damn the torpedoes and operate at full speed. Write the tale that satisfies you. Submit it and take your hits as they come. For your pre-story synapsis you should write whatever you choose. But, above all, be as satisfied with your story as you can be before submitting it.