Bisexuality is romantic attraction, sexual attraction , or sexual behavior toward both males and females, [1] [2] or to more than one sex or gender. 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] and the concept is one of the three main classifications of sexual orientation along 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. Scientists do not know the exact cause of sexual orientation, but they theorize that it is caused by a complex interplay of genetic , hormonal , and environmental influences , [8] [9] [10] and do not view it as a choice. Bisexuality has been observed in various human societies [15] and elsewhere in the animal kingdom [16] [17] [18] throughout recorded history.

Please refresh the page and retry. Whilst this figure alone is shocking, the report found that some of the biggest issues are felt by bisexual men. According to the survey, 49 percent of bi men are not out to anyone at work, compared to seven per cent of gay men and four per cent of lesbians. Bisexuality is nothing new, documented in artwork as far back as Ancient Greece and seen just about everywhere in the animal kingdom. So why is it so hard for a man to openly declare he is bisexual in ?

W e hear a lot about the Big Three Sexualities — straight, bisexual and gay. Most of us assume that these three orientations encompass the universe of sexual identities. But there is a new kid on the block: The mostly straight male. To the uninitiated, mostly straight may seem paradoxical. How can a man be mostly heterosexual?