Sexual identity is a relatively recent and controversial concept. Common cultural practice and scholarly convention have each developed many of the ways currently used to define and categorize human sexual identity. Some of this focus on sexual orientation, defined as a person's tendered preference in the choice of sexual partners. Viewed in this way, an individual could be defined as asexual (having little to no interest in sex, and therefore, no need for sexual partners), bisexual (sexual interest in both men and women), gay (preference by a male for male ...