I think we might be overtheorizing, but what do I know, given I've had sex with men and women before HRT, and don't have a basis for comparison yet?
I know that while I find guys somewhat attractive, it's not nearly as strong an attraction as I have to many women. But guys are the ones who tend to ask first, and I tend to only say yes if someone makes an effort (and manages to stay reasonably polite about it).
Maybe I never had as much socialized aversion to men... I do kind of expect that the addition of hormones that will put me more at ease with having more feminine features and traits could also have some of the effects they may have on teenage girls, and that I might find some guys more irresistable? At least that's the sense I get when sisters are expressing the change in how they are attracted to men, regardless of history (Thinking about those that are attracted to one sex or the other... I'm fairly sure we come in all kinds, and there are those who may have no attraction to men on either side of transition?)