What is Biturnal
BITURNAL (A) someone who identifies an exclusive sexual attraction to the same sex/gender, but has, due to various circumstances, regular intimate relations and/or love for, up to and including sexual intercourse with, a member of the opposite sex/gender. Such as a porn actor/actress, regularly having sex with opposite members, but is strictly gay or a lesbian off camera.
(B) someone who is sexually attracted to the same sex/gender but will date trans individuals of the opposite sex/gender.