What does it mean to be a male who has fantasies about being a female sexually?

Human sexuality is more fluid than most of us think: it's not as simple as males and females. There's apparent physical sex -- the external genitalia you have; there's genetic sex -- the XX/XY chromosome thing; there's sexual preference -- the sex of the people you're attracted to; there's gender dysphoria -- "a man in a woman's body" or vice versa, and even more.

And then there's fantasy, where you can conjure up anything at all, even if it doesn't fit "official" categories. If you are generally content with your life, just enjoy your fantasy. If your feelings go deeper than fantasy, read up on transsexuals, for starters.

There are counselors who specialize in these areas who can help you sort things out. Above all, don't panic -- your feelings will lead you to a deeper understanding of yourself.