Well, I’d think, even with that, he should be able to rustle up a few blowjobs for less than the quoted amount of money. 
Maastricht’s advice is very good, and I would suggest it to the friend. Someone once paid for me to fly to Canada to meet him, but I didn’t need a passport. It involved much scrambling for my birth certificate, though. It turned out well enough, developing into a long-distance relationship. In addition, it gave me a romantic idea of Toronto.
I hope all goes well.
I’ve met many people online and it’s always been fun. However, if the guy is encouraging her to fly to him then I would suggest she not do it. Something seems very strange about paying for someone to fly to you, in another country, that you’ve never met (mail order bride anyone?). It may be nothing. But why take the chance? Why can’t he pay the money and fly to you? Also, the whole seeing Paris thing is probably very enticing. But how fun is site seeing a foreign city with someone who turns out to be totally not your type. It’s funny how some people look nothing like their photos! (I’ve encountered that a few times, but thankfully I only had to sit through a coffee, not a foreign getaway-yikes!).