The cervix is the protective sheath protecting the womb from the urethra…also programmed to create a further protective sheath between the urethra and the womb when a woman becomes pregnant
>Hurts a girl when you hammer it too hard too
Only reason EVER to do that is RAPE. Go fuck a tree if you need to flog yerself that bad. Doing it ight WILL NEVER hurt a woman, rather they will shatre your ppleasure.