Whether a boy is a virgin or not is usually impossible to check. However, the average virgin’s penis is fleshly white or pink when erect, and the foreskin wraps around the coronal groove and half of the glans. At the same time, if the sexual organs are often stimulated, all will cause a certain degree of pigmentation. So some people always say that the darker the skin tone of the nipples or penis of adult men and women, it may mean the more sexual desire or the more frequent sex. However, this statement has not been scientifically authenticated, so the appearance and color cannot be the basis for determining whether a man is virile or not.