I covered that above.  You are still wrong.  Fecundity is not a requirement in Canon Law for marriage.  Never was, never will be.  Look it up yourself.  That is why the defense of marriage folks were laughed out of the District Court in San Francisco, because they relied on a moral philosophy that even Catholic Canon law did not require.  It was certainly not a universal enough philosophy to sway the Trial Court, the Appellate Courts nation-wide and the Supreme Court (only Scalia bought it, he's dead and all the other Catholic justices voted against him).  This is why natural law reasoning cannot be lodged in the teaching Magisterium of the Church, because it must be based on reason or else it is simply belief.  We don't make civil law based on belief, or it seems even Canon Law in some circumstances.

You can keep arguing this, but you might was well simply say what plebes say during their first year: "Thank You Sir, May I have another!"