The vagina is a long muscle member that extends from the opening of the vagina to the cervix and is encased in a synchronous lining. This is the place where the genital organ enters during sexual intercourse. The vagina opening is an opening under the urinary incontinence and is covered by a membrane called a hymen. And narrowing, for example, during childbirth can expand the passage of the fetus and then return to normal and that the vagina of women corresponds to the size of her husband's genitalia, as it always fits with the thickness of the penis, which increases women and men pleasure and desire.