An individual who perfers mutually desired sex with animals. Also called a zoophile. Not to be confused with bestiality, wherein the individual uses animals for sex with no regard to the animals desire.
Joe? Nah, he doesn't date outside the ranch. Zoosexual, y'know.
It is still beastality/bestality regardless of whether or not it's mutual. But then again, what the hell is mutual about that shit anyway when the animal only prefers to mate with its own species.
People who call themselves "Zoosexuals" are simply looking for an excuse to rape animals.