Disgaea has some fun TF'ing opportunities available. In the Disgaea games, it's possible to 'reincarnate' characters into different genders and classes, or into monsters. In the 'bad' ending to Disgaea 1, Laharl, the main character, dies and gets reincarnated as a prinny. Perhaps this would be an option to consider?
http://en.wikipedia.org/wiki/Disgaea:_Hour_of_Darkness
http://en.wikipedia.org/wiki/Prinny