HOTT

Q: Here's a hypothetical scenario. If you got into a relationship with a "women" and you had sex with this "women". A few months later you find out this "women" was not born a women. What would be your reaction?

A: OK, I'll hold back the laughter for long enough to (unfortunately) validate this question with a response:
HOT.
Because anyone I'm in a relationship with and having sex with is HOT, so therefore any aspect of their past that contributed to their present state is also HOT.
Hell, I'll even add an extra T for emphasis on how HOTT the people are to me that I choose to be with.
Also, the "scare quotes" don't emphasize anything but your insecurity.