Argentina's President Cristina Kirchner has agreed to be godmother to the baby daughter of a lesbian couple.
The couple said they asked the president - a mother of two herself - over Facebook.
"Cristina has agreed to be godmother. What a great gesture! I hope she can come to the (baptism) ceremony and does not send a representative. It's a dream come true for us," Karina Villaroel said from Cordoba, 700km north of Buenos Aires.
The office for the centre-leftist president, who pushed same-sex marriage legislation which was approved in 2010, has not confirmed if Kirchner will attend the baptism - believed to be the first time that a child of an Argentine lesbian couple has been baptised.
Villaroel's partner, Soledad Ortiz, underwent in-vitro fertilisation and Umma Azul was born on January 27.
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"We come from Catholic families but do not go to church often ourselves," said Villaroel.
"We want to baptise her and then the baby can decide what she wants to do, and follow her own heart."
About 75 per cent of Argentines are Catholic.
Argentina in July 2010 became the first Latin American country to legalise same-sex marriage. Homosexual couples can also adopt.
Argentine-born Pope Francis opposed same-sex marriage when he was archbishop of Buenos Aires. But at the time he criticised clergy for not baptising the children of single mothers and gay people.
