Yes, before I HRT I considered myself bi...about 90% for women, 10% for men. (I actually told my therapist that if I were in a room with 10 men and 10 women, chances are I'd "do" 9 of the women and 1 of the men--meaning, 9 out of 10 women would excite me, but only 1 of the 10 men would get me "happy.")
This may have been the "one" that I'd have done (or who I'd allow to do me!). 😘 If it happens again in the near future, I will be able to say something is changing. A friend of mine said she'd changed once she got on HRT, in fact now she's wondering if she is "just" gay...