Never more true.

The old saying that a man will not “buy a cow if he’s getting the milk for free” –i.e., that promiscuous women undermine their marital prospects —expresses this supply-and-demand concept of sex. But the truth of this adage an individual basis can also be extrapolated to the larger society: When women are generally promiscuous, men will be generally reluctant to marry.

This explains why, in every culture, sluts are stigmatized. The rational basis of what feminists derogate as misogynistic “slut-shaming” is seldom articulated, but it is this: Promiscuous women make it more difficult for all wom

http://theothermccain.com/2011/09/26/more-sex-less-babies/