Many people are gay or lesbian, and are drawn sexually and emotionally only to partners of the same sex. Others are heterosexual, bonding in sexual and intimate relationships only with people of the opposite sex. However, a significant percentage of people do not fit into either of these categories, because they experience sexual and emotional attractions and feelings for people of different genders at some point during their lives. They are called bisexuals, or also known as "pansexual," "non-preferential," "sexually fluid," "ambisexual," or "omni-sexual."
The Kinsey scale of 0-6 was developed by sex researchers to describe sexual orientation as a number. Heterosexual people are at zero on the scale, gay and Lesbian people are at six at the other end of the scale, and everyone in between, from one to five, is bisexual. People who fall at one or two on the scale have primarily heterosexual relationships and desires, but have some attraction and experiences with same-sex partners as well. People at three on the scale are approximately equally attracted to both men and women. People at four and five on the Kinsey scale choose primarily same-sex partners, but are not completely gay or lesbian and have some heterosexual tendencies and relationships as well.
