After the US published the study, Germany decided to do their
own study.
After $250,000.00, and 3 years of research, they concluded that
the reason
was to give the woman more pleasure during sex.
Poland, unsatisfied with these findings, conducted their own study.
After
2 weeks and a cost of around $75.46, they concluded that it was to
keep a
man's hand from flying off and hitting him in the forehead.