interesting topic.. I personally would have no issue with a transgendered woman deciding to de-transition and would be supportive of that person as a friend.

As far as being romantically involved I would find that difficult. This is not about me not being comfortable a with myself but rather about what I find sexually attractive or appealing. Among other things I am attracted to femininity and traits exhibited as feminine. This doesn't necessarily have anything to do with gender identity as for the most part they are two separate constructs however I am only sexually attracted to a feminine appearance. For some one to de-transition there would also be underlying psychological changes in my opinion. I'd feel in this situation it would generally be human nature for that person to now exhibit what might be considered on a social level highly masculine traits - a beard, deep voice macho temperament etc which, is not attractive to me. I'm sure this is not always the case but it would be interesting to see if people who do de-transition then over compensate once back to their biological gender.

I bet in a lot of cases you would find that MTF transgendered people acted more masculine than before they transitioned and vice versa with FTM.

In comment to Amber I found your discussion about sex-positive feminism interesting. I would like to comment that in the case of female sex workers (Raheme's point) that sexual liberation is not going to be a primary reason for being a sex worker in my opinion but rather a secondary reason. I'd find it hard to believe that some women partake in escort work to simply make a point. I'm not disputing that it would be sexually liberating but I don't buy that it would be the primary cause.