Gender Bender

Term used to refer to a person who takes on the role of their opposite gender. This often only reaches to the extent of cross-dressing (involving physical appearance and clothing only), but in rarer cases, involves a total gender swap (which seems to be more common in anime) – where the willing or unwilling victim receives a body opposite of their original gender (either permanently or temporarily), with all natural parts per their new body fully (or just all-out amply) included.