I knew a guy who actually dated this stripper for a while. He actually just got a lapdance and tried to be as charming as possible. He got her number. He was a pretty smooth guy. However, I don't know what ever came out of it. Probably nothing, because he never talked about her afterwards.
Strippers are actually just human beings who might be looking for some love, so you are at a disadvantage if you meet her at a strip club. You are at a double disadvantage if you are a tourist and do not live in the city. I'd say you'd have to be Mick Jagger or someone as famous to pull it off.
With that said, you can always try to proposition her 20.000 CZK after a lapdance. These girls are obviously in it for the money. Or do like me and try to find a decent looking club girl and pay a small fraction of that. To tell you the truth, if you are lucky you will find as good looking girls as strippers working in clubs.