The 39-year-old, who is a father to three-year-old twins Matteo and Valentino, has been in a relationship with Carlos for four years.
Ricky Martin is apparently keen to marry Carlos Gonzalez (Getty Images)
He chose to apply for Spanish citizenship in order to take advantage of the country's decision to legalise same sex marriage in 2005, reports El Pais.
The government was seemingly pleased to welcome the Livin' La Vida Loca star and, unusually, did not ask him to renounce his Puerto Rican or US citizenship.
Ricky is yet to comment on the reports, but the newspaper claimed he intended to tie the knot in Spain rather than one of the US states that allows same sex marriage, as he wanted to pay tribute to prime minister Jose Luis Rodriguez Zapatero's support for gay rights.
The singer surprised many of his fans when he came out last year by releasing a statement that read: 'I am proud to say that I am a fortunate homosexual man. I am very blessed to be who I am.'