Give ME a Good Ride or I Will Install a Permanent Tail

Mistress T has come up with a solution to getting the most out of her horse slave. She has decided to threaten him with installing a permanent pony tail in his rear if he fails to give her a good ride. This includes her violently fucking him with a strap-on first to prepare his hole for the permanent plug. Naturally the pony is terrified of such treatment and tries very hard to please his rider.

But, Mistress T knows that her pony is terrified and she makes the ride even harder and harder because she secretly wants him to fail. Very good all-fours riding with exhausting donkey lifts and some shoulder riding.