Being gay is a fetish.

[Brakeman]

The obvious genital functions are a minor player in the directions of sexual desire. Sexual desire comes from hormonal reactions in the brain, not from possession of a D or P.  Sexual desire varies greatly from person to person. As a teenager and young adult, a woman's T & A was always the foremost thought in my mind, I was drowning in Testosterone. At the same time many of my friends were only mildly interested and were able to concentrate on hobbies and sports instead of sex all the time. Still others were seemingly asexual, with no drive at all. And of course there were those that were further down the line and were homosexual.

Humans vary a lot more than just the classification of their genitals.

A person's sexual direction is a function of brain chemistry and is something that science is beginning to understand. As a matter of fact, actual progress has been made in changing sexual orientation.

http://www.bbc.co.uk/news/health-12825688


http://tierneylab.blogs.nytimes.com/2007...n-and-off/