I mean power is attractive, you don't have to wonder anymore why so many people spend their lives chasing it, you're experiencing it yourself.
Sounds to me like you're bi, just with a strong preference to women. I think most bisexuals lean one direction or the other, me included.
But yeah, could still also just be the power thing, fucking a hole simply feels nice for the penis, doesn't really matter which hole if you're not prejudiced.
Edit: but also after going through your profile, you spend so much time and energy talking about it, thinking about it, the whole thing seems pretty clear to me ¯\_(ツ)_/¯ that's for you to hash out though, whatever you feel is valid.