You Will Be My Pony

Down on your knees with you! Mistress Mercedes wants to rail. How fortunate that her little pony is such a subordinated stud, willing to be used by her the way she wants it. Mercedes very much enjoys riding her pony, but she is angry because the pony cant trot as fast and as persistent as she would like it to and demands. Well, then, she is dealing out blows to get it going!