Sounds like Bi-sexuality to me. You have described what i have been feeling all my life. Attracted to both sexes..the fantasizing, the crushes on your girlfriends, the fact that you find "women just as arousing." Take your time and explore the scene. I've been dating both sexes for years. You probably just have the ability to love that special person you were meant for no matter what sex they happen to be. If u have the gift of enjoying both sexes for their beauty then go with it. Go with your Gut..but listen to your Heart. Hope this helped.