It's always good to be little bit suspicious than blindly believe that those kind of girls would have only good intentions for having fun with you.This kind of trap has happened to many tourists so you wouldn't be the first one.Prostitution is present in various forms in the country and a 2007 US State Department report stated that many women who worked as prostitutes were employed in massage parlors and escort services that functioned as brothels, although technically illegal.
Today the street prostitution (prostytucja uliczna) is not very common in Warsaw as most girls like to work from private flats or brothels.
Night clubs are also filled with young beautiful girls who are quite active sexually and open minded.
Club Mirage, Club Capitol, Enklawa, Dekada, De Lite Club, Fabryka Trzciny and Klub Kaermel are the best nightclubs in Warsaw and it is hard to leave home from those clubs without a female companion. Unfortunately it's quite common for (lonely) tourist men to be approached by a couple of good-looking girls who will flirt with you like crazy on the streets of Warsaw. The girls will ask you to come to a local bar with them where the drinks begin to flow and the flirting gets more intense.
Now you are in a very unpleasant situation because the bouncers would be ready to harm you if you're still refusing to pay the bill.
Also, if you don’t have that amount of money on you, they’ll be more than happy to escort you to the nearest ATM to get the cash.