I'm a sapiosexual, gender fluid, female bodied switch. I've only been submissive to one person in my heart, my current Master, who is male (cis-gender, masculine energy).
It should go without saying that none of this happens with anyone without conversation from one person to another as people, mutual respect, decent behavior, and a complete lack of entitlement on anyone's part.
I tend to break it down like this:
I can top or bottom in a scene situation (usually impact play, usually at a play party) with any sex, gender, or orientation, if we get along well and both want to.
I can act submissively to varying degrees in non-sexual situations with any sex, gender, or orientation if we both want that.
I can be dominant with any sex, gender, or orientation, as long as they aren't a do-me sub (from experience it's not just males), and as long as we both want that.
Sexually, it's a different story: (assuming mutual attraction, consent, etc.)
I will sexually top any sex, gender, or orientation.
I will sexually bottom for any energy in male bodied people.
I will only sexually top feminine energy in female bodied people.
I will consider sexually bottoming for masculine energy in female bodied people, but to be honest it hasn't happened yet.
The simpler version is that I don't generally have an attraction to female bodied people giving me sexual pleasure, but I very much enjoy giving it to them, if they enjoy it.
There are exceptions, of course, but that's usually what it tends to break down to.
Sorry for the confusion of terms, but I have a difficult time discussing gender in a binary way, especially since so many of the people in my life, both intimately and as friends, do not conform to a binary gender, and neither do I. If anyone wants me to clear any of that up, please feel free to let me know.