"So here I am, thinking I'd made it. I'd met Prince Charming and my life was going to be amazing. A couple months later, Halloween night, he sat me down in the kitchen and said, 'I'm actually a pimp. And the time you've spent with me isn't free.'" Yeah, then the "subtle" technique was replaced by the more direct approach. "He told me, 'If you leave or tell anyone, I'll kill you, and I'll kill your family.' That started a year and a half of complete hell. I didn't know anything about pimps aside from rap songs or 'pimp your ride.' He explained, 'I'm going to take you, drop you off at the casino. Sit at the bar. The first person who walks up to you, tell them you want to negotiate a price.'"

iunderhill/iStock/Getty Images
And if you think casino security would help stop this? It doesn't.

See, this is what complicates the "Why not legalize prostitution? It's a transaction between two consenting adults!" argument. Where you find prostitution, you always find some who are there against their will. Not that the customers knew, or cared. "I wouldn't be surprised if not one of them knew [I was trafficked]. Nobody ever asked. It was all fun and games -- party time."

We also talked with "Kay," who works for a charity helping former trafficking victims in Europe's sex-trafficking capital, Bulgaria. Christina's story sounded very familiar to her. She told us the story of one woman she worked with:

"She's from a small village in Bulgaria. And she started dating an older man. ... She was 13 or 14 and he was 19 or 20. It's normal here for a 16-year-old to date a 20- to 21-year-old." (The age of consent there is 14 -- 18 if you're gay.) "So ... she was dating him for about a year. She didn't know this, but he was grooming her. 'Grooming' means you're making and creating a woman who will at some point prostitute herself for your affection."

NinaMalyna/iStock/Getty Images
Which is a process as common as it is alarmingly sophisticated.

This is pimping on a level much more unsettling than anything a man with gold teeth, a cane, and a fabulous hat could accomplish. And it also rings true with the experience of the former sex slave we spoke with last year, who was forced into prostitution by her parents. "You have this man who says he loves you," says Kay, "and he's providing for you. He may even seduce your family with his charm. Then behind closed doors he gets you to start doing things sexually, starts with, 'I owe my buddy a big debt. If you can do this one time it'll clear my debt ...'"

And from there it escalates to open prostitution. But why don't the girls just bail out once it crosses that line? "That's what I would do," you confidently shout at your screen. Well ...

In Eastern Europe, on the other hand, many victims don't even consider themselves as being "trafficked." As Kay says, "Most of my girls come from a culture of prostitution. Which means they were bred to be prostitutes. So you have whole cities dedicated to the business. ... They are sent all over Bulgaria, all over Europe to do this business, and they provide millions of euros to the organized crime rooted in Bulgaria."

Hillary Fox/E+/Getty Images
Basically, farmers of free-range and organic human misery.

These women often get into the sex trade when they're still too young to consent. By the time they're adults they may say they "consent" to do the work ... but it's also all they've ever known, and all they've been groomed for. "They manipulate so well these girls won't believe they're trafficked, ever. Even if you get a girl away from a situation, drag the girls out, and rescue them, it takes years for girls to realize they're trafficked. What is trafficking when your whole family has been doing it?"

So when does it end? "Most trafficked women in Bulgaria simply age out of being trafficked. Eventually they're too old to make money -- at which point, they're out on the streets."

If your response to that is, "Damn, Eastern Europe sounds like a shithole!" please keep in mind ...

The girls who are groomed and moved to other countries lose control of their own travel documents in the process -- that's part of what keeps them from escaping. In other cases, girls answer ads for what look like legit jobs in other countries (like, say, the USA) with promises of room and board -- maybe a service job that advertises for an attractive young female candidate. Then, once they arrive, the victims get eased into the real job by the same process Christina did -- they're told they owe money and now have to "work" it off.

Ozgur Coskun/iStock/Getty Images
We're no economists, but we're pretty fucking sure that's not a legally recognized exchange rate.

Kay says the girls she deals with are "typically sent to Greece first. Legal, but indoor brothels. Italy is sorta the same way. ... It's not legal, but it is everywhere. If you can get a girl to survive through that, they'll send them to Western Europe. So if the girl is still under your control, you can put them out into the red light districts."

Oh, and in case we're making the international sex slave trade sound like a foreign problem involving exotic Taken villains, keep in mind up to 17,000 humans are trafficked into the USA every year, though that number is a blind guess. As for how many girls are trafficked within the USA, like Christina? The government doesn't even have an estimate. The Las Vegas Metropolitan Police alone have recovered 2,229 victims of sex trafficking since 1994.

So, here's the reality: If you've paid for sex, there's a significant chance the person you fucked was there against their will.

kcslagle/iStock/Getty Images
See: "he had pictures of my mom" from earlier.

Why do we know so little about this problem? Because ...

Remember how Christina's first day of hooking involved wandering around Las Vegas casinos in search of Johns? Well, it didn't exactly go well. Her very first customer turned out to be casino security.

"We went up to the elevator and he pulled out his security badge. In the moment I wanted to give him a hug. He was like, come down to the security office and we'll talk. When we got down there he sat down, and on the wall was a list of girls they'd 86'd for prostitution. He said, 'If you come back in for any reason, you can go to jail for trespassing.' They kicked me out the back door. That's when I knew I was in for something I couldn't get help for. I didn't think any sort of law enforcement would help me."

iunderhill/iStock/Getty Images
Told you.

He saw a criminal, not a victim. In fact, many parts of the country don't have specific laws against human trafficking -- prostitution is just blanket illegal in most of the U.S. And, lawmakers reason, if all prostitution is illegal prostitution, why should human trafficking get its own special laws?

Eventually, Christina and her pimp both got busted, not for prostitution but for a credit-card-fraud scheme the pimp had involved the girls in. "The feds picked us up, indicted me on nine felony counts and him on like 11. I ended up taking a plea agreement six months later. I got 24 months in a federal prison. This is like ... 10 years ago. I never told anyone what was going on. 'Trafficking' wasn't a word back then. ... Nobody asked me what was going on. They just shuffled me through the system."

djsash001/iStock/Getty Images
"If you don't like the legal system, maybe you should've thought of that before
you became an exploited slave."

That's a tragically common story. If you want to get even more bummed out today, you can read this story of a woman who was kidnapped from her home at age 14, forced into prostitution, and has since then been convicted of prostitution 12 times. Police in the U.S. are starting to catch on, but it's been a slow burn. Long Island, a human trafficking hub, just got an anti-trafficking task force in 2014, and they still aren't together enough to have actually done anything. As Christina points out, "They depend on testimony from victims who are terrified of the police."

The FBI actually works with Christina now. She helps counsel girls the agents bust in prostitution stings who are being trafficked ... but only for victims under 18. The adults, well, they still figure that's their own fault. Over in Bulgaria, meanwhile, prostitution isn't illegal, which is different from being legal -- if it were the latter, there would at least be some laws enforcing health and safety standards on the industry. But the cops simply don't care either way -- especially about trafficking.