This is made toward the beginning of a string of Czech orgy sites produced by basically the same set of people. The male paid participants here look their youngest so maybe it is early 2000's. These events were posted under a series of sites, one of them was drunksexorgy.com and other was party hard.com (this one took the form of a male strip review). Some of the events were huge with more than a hundred people, by the most recent postings. However, the quality, and real fun feeling gets less and less as the operation gets older. In the beginning, everyone seemed to be having a good time and the girls really seemed to like getting to have their way with very handsome and studly boys. Both genders were of various shapes and sizes and the sex seems fun, if rarely fully satisfying for the girls.
I'm not sure how they got their "guests" to these parties. They earlier dated ones look more fun and naive, and more of the "amateur"-looking girls seem to finally get to fucking along with the "pros". The boys are obviously all paid and all will fuck by the end of the segment, if not earlier. It usually looks as though there are a bunch of girls who watch and maybe fool around with each other, and then a bunch who join in the sex play and reach hand or mouth action, or full fucking. I am guessing that some of the girls are professional porn "ringers" so their participation is sure. Then the more amateur types are probably paid by the sex act, on a kind of bounty principal.
As the years went on, the parties seemed more and more staged and professional.