Is protruding inner lips the only sure proof of lost virginity?

Is sex the only reason for inner lips sticking out of vagina?Is protruding inner lips the only sure proof of lost virginity?
There is no physical sign of lost virginity. Vaginal lips come in all shapes and sizes, and don't change after sex. The hymen is also not a good indicator of virginity, because some women are born without of them, and others have broken them during the course of rough sports or an accident.Is protruding inner lips the only sure proof of lost virginity?
There is not full proof of virginity %26amp; the lips doesn't change its shape through sex it gets changed only when u deliver a baby ok No body can say if a person is a virgin or no until he is himself done or anybody has told him that he has done so ok good luck bye