Mexico's supreme court has ruled it is unconstitutional for Mexican states to bar same-sex marriages.The Court wrote,
But the court's ruling is considered a "jurisprudential thesis" and does not invalidate any state laws, meaning gay couples denied the right to wed would have to turn to the courts individually. Given the ruling, judges and courts would have to approve same-sex marriages....
Gay marriage is legal in some parts of Mexico, including Mexico City and the northern state of Coahuila.
"As the purpose of matrimony is not procreation, there is no justified reason that the matrimonial union be heterosexual, nor that it be stated as between only a man and only a woman. Such a statement turns out to be discriminatory in its mere expression."
Read more at http://www.bilerico.com/2015/06/mexico.php#TFdTOuxgibw1QPQT.99