I think alot of people see a union between two people of the same gender as just a morally wrong thing. (religion.blogs.cnn.com)
On adult dating sites, about 95 % are straight people, who may not be willing to go for an experience with someone of the same gender. (bisexualdatingsites.biz)
You may still prefer partners of the same gender as before, but with more masculine features. (scienceofrelationships.com)