RIO DE JANEIRO, BRAZIL - JUNE 06:  (BRAZIL OUT) A sex worker poses in the Vila Mimosa prostitution zone, Rio's working-class red light district, on June 6, 2014 in Rio de Janeiro, Brazil. Prostitution is legal in Brazil and a total of 3.7 million tourists are expected to be in the country during World Cup festivities.   (Photo by Mario Tama/Getty Images)