Mexico City ? An economist and a journalist became the first couple united under Mexico City’s new gay civil union law, kissing while an orchestra played “Besame Mucho” and police cordoned off streets around a white wedding tent filled with guests.

The new law, which took effect Friday, grants same-sex couples inheritance rights and social benefits similar to those enjoyed by married heterosexual couples. It reflects a growing acceptance of homosexuality in what traditionally has been a macho society, as well as a willingness by Mexico City – the second municipality in the country to legalize same-sex unions – to join the international debate on gay marriage.

After dating for four years and three months, journalist Antonio Medina, 38, and economist Jorge Cerpa, 31 were united in front of the government offices for Mexico City’s Iztapalapa borough.