that work for the casinos. >> annie says she herself was once a house girl for a major las vegas casino when a big spending guest request add prostitute, annie would get a call. the $7,000 fee would be split down the middle. half for annie, half for the casino. >> you know what? i used to work this town if you know what i'm saying. >> just as the crew is about to call it a night, a young woman catches annie's eye. >> listen, please be careful. >> yeah. >> i had a pimp and everything, girl. >> i seen it firsthand. they are aggressive. >> how old are you? >> 21. >> baby, i remember when i was 21. you could be my daughter. >> she said she was a stripper but tattoos, pimp brandings. >> listen, you can calm us if you need anything. >> okay. >> that's our message, hey, you're not alone, and we understand because we have been sex trafficked, too.