Source, pls.Lear said:Hitting women in the groin does cause pain... and it's usually worse than what men experience.
I've talked to a couple girls that have been kicked in the groin, and they compared to having their foot stomped, except higher and causing more adrenaline rush.
A knee to the balls, in comparison, is similar to having someone shove a red-hot knife into your arm for a second, then letting you deal with the aftermath (some extrapolation used).
OT: Contrary to popular belief, teenaged girls ARE psychopathic, and many will freely admit it.
(This not-very serious observation has been used in lieu of any factoids not already mentioned.)