Bisexual
From wipipedia.org
Bisexuals are sexually attracted to members of both sexes. This is sometimes described as getting the best of both worlds.
Bisexuality is common. Some people like to deny they have any attraction to the same sex but are in fact just in denial.
Anne Rice novels "normalise" bisexuality, especially the Sleeping Beauty trilogy.
See the Wikipedia article on bisexuality for more information.