Actually I've just remembered. Someone I was involved with, years ago now, wanted to shift our relationship to a BDSM dynamic, which I had never done. With me as the Top/Domme. At the time, it was impossible for me to contemplate. Because I just couldn't get my head around how I could take up that role, as it seemed to me, under their 'control' or primarily at their behest. I couldn't be ordered to order them around!
But then, this type of conundrum is often there, for the Domme, in some form, I now see. And I found the exploration of that in the film really interesting.