>If you took birth control out of the equation And if pigs could fly... Birth control changes everything. The number of children a man has is inversely (and

>If you took birth control out of the equation And if pigs could fly... Birth control changes everything. The number of children a man has is inversely (and counterintuitively) related to the number of sexual partners he's had. http://anepigone.blogspot.com/2008/10/fewer-sexual-partners-means-more-babies.html http://anepigone.blogspot.com/2008/10/fewer-sexual-partners-... You can have all the sex you want, but if it doesn't result in babies it doesn't count (at least not in this context).