I dont think that would make him gay----A hetro male is designed to be sexually attracted to something that looks like a woman.-----even if it is a drawing on paper or another MAN disguised to look like that form.
A gay man is attracted to what looks like other men.
Sexuality usually has nothing to do whether one CDs or not, as CD is usually based on something else, such as identity issues or games, Thrill seeking or a variant of SM. etc. As there are MORE HETROS in the world, then there are more hetro CD's than gay CDs.
Gays usually CD for the same reasons Hetros do and has nothing to do with their "gayness". Indeed, if CD WERE SEXUALITY based, one might find GAYs LEAST likely to CD---as they are into guys sexually.