Look at the haircuts of the 3 guys. I suspect they are 3 privates on a weekend pass. The women may or may not be a wife, but she and the camera man are definitely in charge. If a wife, then she and her husband found 3 guys and now she gets fucked by all of them, her husband gets to watch, and the 3 guys get free pussy. If she is a prostitute, then maybe she gave them a group rate, haha.
.. need friends like this