Pope Francis laughs during a Valentine's Day celebration in St Peter's square at the Vatican on February 14, 2014. The Vatican said there were around 20,000 future brides and grooms attending from 25 countries, all of them enrolled on Catholic marriage preparation courses. The celebration was not open to same-sex couples as Francis is opposed to gay marriage, even though he has called for a more tolerant approach to homosexuals. AFP PHOTO / GABRIEL BOUYS