I think that this fetish is extremely exciting to a lot of people; more people than would admit to it perhaps. And this applies to both genders and all races.
However, I think a lot of people find the fantasy exciting but are a bit scared to put it into practice. So be patient.
Also, play it cool with any potential Bulls. If you act like an online pervert, rather than a healthy couple looking to add a bit of spice to the bedroom, you might inadvertently be scaring them off (not saying this is necessarily true of you, but something to bear in mind).
Best of luck