I dont think T will actually change your orientation, but as you approach the person you really are, you may want to explore the field. I feel asexual too... At least atm. I have no interest in sex because my sex is all f***ed up. I dont know how to be a man so i cant please a woman. And i have no sexual interest in men because i feel so ugly as a man and thats not how i wish to be labeled. with that being said, once i transition i could see myself with another lover, male or female.