>rather than the cum dumpster that would obediently and happily spread her hind legs and rise her tail for any number of stallions to runt her various holes at will that she had became, she would also have trust her master, and begin to view him more as a lover, than a slave peddler. With the stallion being given the difficult task of setting up these expectations, and then delivering on them, under the threat of slavery and emasculation if anypony were to even suspect that he wasn’t treating his mare as a virtual sex toy.
there is a lot of logic applied to this story of crazy stallions. How ironic and I don´t know if this serves more to those who want the fetish to be the central part of the story (the peak of personal pleasure by reading this) or if you are featuring NSFW content as an excuse to make a social commentary with these two modes of living their lives.

>Octavia will slowly begin to find out that her lover wasn’t acting much better than any other stallion while he was outside of their room,
before reading this line, one should have expected that when everyone is crazy, having someone who doesn´t follow that route mustn´t be a much better choice to pick out there either.

>He will have to find a way to justify, and make up for his previous actions to the mare he cares about so deeply, while continuing to carry them out, to keep up appearances.
the fetish part is gone and it becomes a dramatic love story

>to degrade themselves further than ever and become exactly what they were trying to escape, just to survive.
you know, there is a moment in which the sexual content might not sound as wicked as this plot because sweet mother of Celestia, it´s more fucked than the ancient societies from our past.

To sum it up, it sounds like you have watched a harem anime or something and you have given a really fucked up context to introduce this pairing. I believe that the love story from 1984 had a little bit of room to breathe in its dystopia but damn, your ideas sound like you want to reach the next level in order to drown yourself into NSFW acts.

>post horse pussy, please. (I tried, but I keep getting an error whenever I try to post an image. Worked with the OP, doesn’t work with normal posts for whatever reason.
I could but I tend to post SFW content for the most part. The best NSFW content to see is on Derpi, posting in on her would be like picking my favorite images