Found Sheep,
Researchers at Cornell University, examining data collected from a representative sampling of young Americans which included more than 20,000 individuals in 80 communities across the United States, found that nearly 15% were not strictly heterosexual, i.e. either lesbian or bisexual. The proportions in Europe might be higher. For example, in Norway, nearly a quarter of girls and young women identified as lesbian or bisexual: see L. Wichstrøm and K. Hegna, "Sexual orientation and suicide attempt: A longitudinal study of the general Norwegian adolescent population,"
The percentages of gay or bi-sexual males is much lower, in the 5% range. So FS, you are normal. And as you know, all girls are 2 drinks away from a girl-on-girl experience (see Dennis Finch "Just Shoot Me").