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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.
The American Psychological Association states that "sexual orientation falls along a continuum.
In other words, someone does not have to be exclusively homosexual or heterosexual, but can feel varying degrees of both.
Others have had homosexual experiences but do not consider themselves to be gay, lesbian, or bisexual.