KEY TAKEAWAYS •
Masturbation involves self-stimulation of one’s genitals for the purposes of attaining an orgasm.
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Sexual fantasies are universal with some differences between men and women in their choices of sexual fantasy.
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Oral sex involves the stimulation of the genitals or the anus with some part of the mouth.
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Fellatio is oral sex related to the male genitals, while cunnilingus is oral sex related to the female genitals.
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Sexual intercourse generally means penile to vaginal penetrative sex.
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Anal intercourse involves any type of penetrative act with regard to the anus itself.
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