Picking up from a comment on another entry:

"Attraction is strange, and I have no idea how it works. It can't be purely testosterone, because there are some very macho gay men out there. Is it genetically hard-wired in the brain, is it learned, is it mere taste like favourite foods, or is it something else?

Does anyone know?"

I find this subject fascninating. If anyone has any insight into why we're attracted to some people and not others, I'd be interested to hear anyone's thoughts.