Bisexuality
Overview
Bisexuality is sexual behavior
Human sexual behavior
Human sexual activities or human sexual practices or human sexual behavior refers to the manner in which humans experience and express their sexuality. People engage in a variety of sexual acts from time to time, and for a wide variety of reasons...

 or an orientation
Sexual orientation
Sexual orientation describes a pattern of emotional, romantic, or sexual attractions to the opposite sex, the same sex, both, or neither, and the genders that accompany them. By the convention of organized researchers, these attractions are subsumed under heterosexuality, homosexuality,...

 involving physical
Sexual attraction
Sexual attractiveness or sex appeal refers to an individual's ability to attract the sexual or erotic interest of another person, and is a factor in sexual selection or mate choice. The attraction can be to the physical or other qualities or traits of a person, or to such qualities in the context...

 or romantic attraction to both male
Male
Male refers to the biological sex of an organism, or part of an organism, which produces small mobile gametes, called spermatozoa. Each spermatozoon can fuse with a larger female gamete or ovum, in the process of fertilization...

s and female
Female
Female is the sex of an organism, or a part of an organism, which produces non-mobile ova .- Defining characteristics :The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male...

s, especially with regard to men
Man
The term man is used for an adult human male . However, man is sometimes used to refer to humanity as a whole...

 and women
Woman
A woman , pl: women is a female human. The term woman is usually reserved for an adult, with the term girl being the usual term for a female child or adolescent...

. It is one of the three main classifications of sexual orientation
Sexual orientation
Sexual orientation describes a pattern of emotional, romantic, or sexual attractions to the opposite sex, the same sex, both, or neither, and the genders that accompany them. By the convention of organized researchers, these attractions are subsumed under heterosexuality, homosexuality,...

, along with a heterosexual
Heterosexuality
Heterosexuality is romantic or sexual attraction or behavior between members of the opposite sex or gender. As a sexual orientation, heterosexuality refers to "an enduring pattern of or disposition to experience sexual, affectional, physical or romantic attractions to persons of the opposite sex";...

 and a homosexual
Homosexuality
Homosexuality is romantic or sexual attraction or behavior between members of the same sex or gender. As a sexual orientation, homosexuality refers to "an enduring pattern of or disposition to experience sexual, affectional, or romantic attractions" primarily or exclusively to people of the same...

 orientation, all a part of the heterosexual–homosexual continuum. Pansexuality
Pansexuality
Pansexuality refers to the potential for sexual attractions, sexual desire, romantic love, or emotional attraction, towards people of all gender identities and biological sexes...

 may or may not be subsumed under bisexuality, with some sources stating that bisexuality encompasses sexual or romantic attraction to all gender identities
Gender identity
A gender identity is the way in which an individual self-identifies with a gender category, for example, as being either a man or a woman, or in some cases being neither, which can be distinct from biological sex. Basic gender identity is usually formed by age three and is extremely difficult to...

.
Quotations

" To deny it implies that it's wrong."

Alan Cumming

"Homosexuality was invented by a straight world dealing with its own bisexuality."

Kate Millett, Flying

"I think I've always been bisexual. I mean, it's something that I've always been interested in. I think everybody kind of fantasizes about the same sex. I think people are born bisexual, and it's just that our parents and society kind of veer us off into this feeling of 'Oh, I can't'. They say it's taboo. It's ingrained in our heads that it's bad, when it's not bad at all. It's a very beautiful thing."

Billie Joe Armstrong

"It is my opinion that while the word bisexual may have its uses as an adjective, . . . it is not only useless but mendacious when used as a noun."

John Malone, Straight Women/Gay Men

"the reason no one has yet been able to come up with a good word to describe the homosexualist (sometimes known as gay, fag, queer, etc.) is because he does not exist. The human race is divided into male and female. Many human beings enjoy the sexual relations with their own sex, many don't; many respond to both. The plurality is the fact of our nature and not worth fretting about."

Gore Vidal

"Sex is a continuum. You go through different phases along life’s way … and if you don’t, you’ve been sort of cheated."

Gore Vidal

"We're trained to see only male or female and to plot people into those categories when they actually don't fit neatly at all. But if we pause, watch and listen closely we'll see the multiplicity of ways in which people are sexed and gendered. There exists a range of personal identifications around woman, man, in-between--we don't even have names or pronouns that reflect that in between place but people certainly live in it."

Minnie Bruce Pratt

"The time has come, I think, when we must recognize bisexuality as a normal form of human behavior. . . we shall not really succeed in discarding the straitjacket of our cultural beliefs about sexual choice if we fail to come to terms with the well-documented, normal human capacity to love members of both sexes."

Margaret Mead, Redbook (1975)

 
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