I believe a true dom should make his sub feel loved even through the pain and humiliation. True submission should not need to be forced, even if it may be an exciting journey.
Personally, I like to keep in shape, working out four times a week. My ideal sub would be turned on by humiliation and degradation but not necessarily pain. Since I also enjoy kinky games, I would expect the same for my sub.
Desires and Fantasies
A young submissive girl into humiliation and degradation. She should get turned on by being called a slut, whore, or any other number of degrading terms. She should enjoy spanking, begging, anal, and sex.
Kinky games such as subtle orgasm denial in public and being controlled should also be turn on.