Getting kicked in the balls is just a brief bout with blunt trauma in your joybits. Giving birth involves having your vagina spread to insane proportions over the course of sometimes several hours, that preceded by months of harsh weight gain, hormonal imbalances causing emotional difficulties and vomiting, and then all that succeeded with some screaming gargoyle emerging from your vagina and you typically having to take care of it for two decades. How someone was able to envision a competition between the two is beyond me.