This is all very intellectual and brain driven and very little attention given to the libido with its own selection of responses to various stimuli. I have found in my lifetime that the more I profess confusion and fight being categorised the less pleasure I get from my sex.
If both your brain and your penis come to some lustful agreement then go in the direction of that urge. Worry less about who and what you are sexually and let nature itself handle predilection. Cerebral manifestations always used to figure everything out lead to a lifetime of angst and quandary. Is it not our fear of others judgments and our very own projection of image that screw us up? Huck Finn