Being caught in a sexual act isn’t what I would call a sexually powerful person....in this fantasy.

The exhibitionist, the idea of performing, being caught, public display is a common fetish but even someone who favors submissiveness could also be an exhibitionist.

Another post you described a sexual experience, but I personally didn’t find it “subby.”
Maybe you need to explore your physical sexual experiences a bit more, idk.
Afa the pure O, I’m sorry I’m not familiar with ocd.