Opti-genitalia-queer (sometimes formatted as optigenitaliaqueer or OGQ for short), is a type of gender fluidity characterised by the individual's tendency to alter their gender to that of the genitalia they are viewing, hence the name. This means that OGQ individuals: * Become male upon seeing a penis or testicles. * Become female upon seeing a vagina. * Are agender when genitalia is not within their sight. * Are bigender when genitalia from both binary genders is within their sight.