Many men and women who identify as heterosexual—and may well be married—have fantasies about same-gender sex. Some engage in periodic same-sex play. They often wonder: Am I gay/lesbian? Meanwhile, many heterosexual pornography videos feature “girl-girl” scenes, two women enjoying each other, using vibrators and dildos on one another, and sharing cunnilingus. Clearly, both men and women who identify as hetero may also be sexual with people of the same sex. That’s bisexuality.

Compared with heterosexuality and homosexuality, much less is known about bisexuality. It has not been well researched. But a recent report summarizes what’s known about this sexual variation—and how straight and gay people relate to those who, in slang terms, are “AC/DC,” or “swing both ways.”

In this article:

• Forced to Choose
• Does Bisexuality Really Exist?
• The Prevalence of Bisexuality
• Prejudice Against Bisexuals
• The Real Lives of Bisexuals
• It’s Not Easy Being Bisexual

1,400 words MORE…