Honestly don't think there is any higher prevalence of rough sex interest in this field than in regular sex. Due to their openess to cuckold, I'd wager cuckoldresses might be more open to it if asked/introduced by a Bull, but I'll leave that for other members to speak on.
But that said a lot of women, do like it rough from my experience.
It can go from tame to wild, its all random chance I'd say.
But by all means do tell us some more about your early adventures, and if she'd like sex with spanking and wild hair pulling sex with a Bull I just might know of someone. ;)