Quite common on the continent. Either they come in one at a time, you get presented with a lineup, or you get taken into a room where they are all lounging around on sofas. Have to admit it can be a bit unnerving if you are not used to it. Good tip to go with one who puts the most effort into enticing you, rather than the best looking. As said, if she can't be bothered to entice you, she is unlikely to be much bothered in the bedroom.