I myself am transgendered (MtF) and a member of the lesser known sexuality, pansexuality. For those not in the know, pansexuality is the attraction to people of all sexes or genders. It sounds like bisexuality, but the literal definition of bisexuality only encompasses both sexes, not genders. That's my belief, however, but I don't object if you fall under those standards for pans and continue to call yourself bi. Part of what I've learned while being transgendered is that people need to be able to define themselves to their pleasing, not others.