Some of the kinkiest people I’ve known were ace, particularly in the bdsm community. Of the people I’ve known they were very into kinky and physical acts but just not anything involving sucking or fucking. Since their sexuality didn’t involve genitalia they tended to be pansexual or rather attracted to people regardless of their sexuality. I feel like you see more people of that mindset in the bdsm and sensualist communities because a lot of the “sex acts” don’t involve penetration or interaction with genitalia.