KEY TAKEAWAYS •
Sexual orientation refers to the level of attraction a person has to the different genders.
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Sexual orientation is believed to have a biological basis rather than a social or learned basis.
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There are different levels of comfort with homosexuality in different parts of the world and in different time periods.
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MSM behavior refers to the sexual practices between two consenting men and includes several types of sexual behavior other than anal sex.
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WMW behavior refers to sexual practices between two consenting women and includes a variety of sexual behaviors other than cunnilingus.
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