Mmm, since the males that you can use your powers on, don't even have images of their male visage, why not simply write them as females to begin with?
Simple and quick rewrite is all that is needed. And you could even use the images from their love/corrupt/bimbo folders as their initial/meet images.
I've not got far into the game myself, but does the people where this game is taking place, mention the characters sex transformations? or do they go about like nothing has happened?
A shame that avoiding male transformations can force you to miss out on other characters.