Even if you have intercourse 20 times or more, the vagina will not become loose. This is because women’s vaginas are very elastic and stretchable, and simple intercourse will not cause the vaginal walls to loosen. There are two reasons for vaginal wall laxity: one is the breakage of local muscle fibers during childbirth and the decrease in the tension of the ring muscle, which causes laxity of the vaginal wall, or caesarean section, which leads to laxity, and the other is the endocrine disorder as we age, which causes ligaments around the vaginal dryness to lax, leading to vaginal wall laxity.