Your character can take a gender changing potion if a female in one ending gets given one. In two other endings if male will be turned into a female. The Character Reese gets turned into a girl with a potion and you can change him/her back and forth. If you have Eric you can change him into an identical twin with his sister changing him to a women. I think that's all(figured I wouldn't give specifics but if you want you can look at the guides and I could give more details if I remember and you want)