Karla Jacinto, from Mexico, estimates she was forced to sleep with at least 30 men a day over four years as a young teenager .
She says she was first targeted at the age of 12 by a trafficker who prized her away from her dysfunctional family with gifts and money.
Karla was eventually taken to Guadalajara, one of Mexico’s biggest cities, and forced to work as a prostitute.
She was eventually rescued in 2008 as part of an anti-trafficking operation in Mexico City.
Now aged 24 – after years spent recovering from the deep emotional wounds and harrowing memories of sexual abuse – she has become a human rights activist.
Karla now travels the world giving help and advice to other victims of sexual slavery – even meeting Pope Francis at the Vatican to discuss the issue.
She says she is looking to raise awareness of Mexico’s human trafficking crisis – with an estimated 20,000 women believed to fall victim every year, according to International Organisation for Migration.
CNN reports that Karla is now in fact “not just surviving, she’s thriving” as a human rights activist speaking out against modern-day slavery.
As she showed the reporter photos of her age 12 explained: “They would beat me with sticks, they would beat me with cables, they would beat me with chains.
“They forced me into prostitution at age 12.”