Bisexual is when you like both genders and homosexual is when you like the same sex and yourself. Therefore trisexual is when you like both male, female, and transgender
A person who has THREE genders,normally male, female, and a plant, mineral, or an object, like a seat on a school bus.
trisexual person: I like having sex with this seat!!!
male: So, your a bisexual?
trisexual person: Im a girl too, so i guess im "TRISEXUAL"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1