Ordinary classic sex, can include oral sex.
Vaginal sex-a type of sexual intercourse, implying the introduction of erect male penis in the vagina of a woman. Vaginal sex is the only type of sexual intercourse capable of performing reproductive function. Vaginal intercourse is accompanied by a reciprocating movement of the male penis into the vagina, which is provided by the movements of one or both partners. Stimulation of the male genital organ is achieved by reducing the vaginal muscles; Stimulation of the female-due to excitation of the rich nerve endings of the legs of the clitoris and part of its head, as well as the G-point. The use of penises, vibrators and other items for sexual stimulation of the vaginal zone, as well as some lesbian practices, can also be seen as vaginal sex, although it is no longer considered classic sex.