Close, best is when the FMC falls in love with the bulls cock only, the bull shouldn't have feelings, all he wants is a harem of every woman in the MC's life. I actually like the FMC staying in love emotionally with the MC and always being mostly sympathetic and sweet to the MC, or at most submissive in the face of the Bull only humiliating the MC, if its not hidden NTR at that point. I also hate the MC getting any action at all, but that is a different topic.
At the end of the day though its all the writing and surprise, good writing can make anything work. I have tried to commission stories from my own ideas and it's never as good as discovering when an unknown story goes.