Dictionary definition: Heterosexuality is romantic attraction, sexual attraction or sexual behavior between persons of the opposite sex or gender.
My definition: A male that feels attraction to females or a female that feels attraction to males.
Flag meaning: Not quite sure, but a fair few people think that it is uneccessary and unneeded.
Flag created: Ditto.
Celebrities: Most.
Media: Almost everything.
Other: Usually called straight. Also, this is not a default.
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The Dictionary of Sexuality
Non-FictionA list of sexualities, their meanings, flags and other information.