If you insert a finger in the vagina, be ware that it is tipped back 30 degrees. So you have to aim for the lower back.
Going into the vagina with a finger or penis you’ll discover that the vagina is very soft and wet. It feels like the inside of your cheeks, but then with small ridges.
The vagina is about 3 inches (8 cm.) in length. The front side is a little bit shorter than the back side.
At the top of the vagina you’ll feel a bulge. It is as if you touch the tip of your nose. This is the neck of the womb (the cervix), which has a minuscule whole in the middle through which semen can enter the womb and blood can leave the body when a girl has her period.