Interesting article on IFLS that I came across today, discussing the possibility of "gay" genes or, and perhaps more accurately, genes that cause strong attraction to either males or females, regardless of what gender the individual is.
The article can be found here. IFLS and another, more details one on The Guardian site.
Not all gay men will have these genes and while this verifies an earlier study indicating that homosexuality is heritable, the science is still relatively new.
What I find interesting is the potential link between men and women and how this affects attraction, as discussed in the IFLS article. Do both men and women who inherit these regions show strong attraction to males? Is this an example of balanced polymorphism as suggested? Interesting speculations and certainly worth keeping an eye on in the future.
Skeptical kinkster musing on whatever takes my fancy!