Mistress Anna has her pony slave under her absolute control. Bridled, he is ready for his riding mistress. Mistress Anna sits on his back and rides him. Today she will judge his performance as a pony and determine whether he can be used as a riding horse or is just a lame stupid horse. With the crop she pushes him forward and rides him faster and faster, lap after lap. Only through this rigorous training can she find out if the pony slave is good enough!