The auction is selling various catgirls, whom are busy being bored in cages, waiting their turn on the lovely stage. Most of them are sleeping off whatever fun they had back home, as one after another is put on the stage to be sold via the classic auction. Each catgirl is described by the auctioneer. Basic information like weight, bust size, if she is a virgin, how trained she is, etc etc. A virgin kittengirl sells for at least 1000 gp, with a well trained house cat getting around 500-700. A virgin house cat is at least 2000 gp, as one of those is just now getting yanked onto stage.