sentences:  Oral sex, for example, which can include oral caress of the genitalia, as well as penile penetration of the mouth or oral penetration of the vagina, may be categorized as non-penetrative sex.Oral sex may also be considered outercourse solely because it is not vaginal or anal intercourse.The words "penetration" and "penetrative" may be restricted to penile-vaginal penetration, and, in this way, the definition of outercourse additionally includes penetrative anal sex, with the term "outercourse" used to contrast the term "sexual intercourse" as vaginal sex.