A type of BDSM animal roleplay where the submissive participant dresses and plays the role of a pony and the dominant participant plays the role of handler/rider. It can broken up into at least 3 subcategories:
Cart Pony where the pony pulls a cart their handler rides
Riding Pony where the pony carries the handler (either while on all fours or standing on two legs)
Show Pony where the pony is shown off in various decorative attire by the handler.
