Bisexual

Bisexuality is romantic attraction, sexual attraction, or sexual behavior toward both males and females,[1][2][3] or romantic or sexual attraction to people of any sex or gender identity; this latter aspect is sometimes alternatively termed pansexuality.[4][5][6]

The term bisexuality is mainly used in the context of human attraction to denote romantic or sexual feelings toward both men and women,[1][2][3] and the concept is one of the three main classifications of sexual orientationalong with heterosexuality and homosexuality, all of which exist on the heterosexual–homosexual continuum. A bisexual identity does not necessarily equate to equal sexual attraction to both sexes; commonly, people who have a distinct but not exclusive sexual preference for one sex over the other also identify themselves as bisexual.[7]

Bisexuality has been observed in various human societies[8] and elsewhere in the animal kingdom[9][10][11] throughout recorded history. The term bisexuality, however, like the terms hetero- and homosexuality, was coined in the 19th century.[12]