A stern mistress takes control, transforming her eager slave into a human pony. She secures a tight harness around his chest, connecting it to a leash that she holds firmly in her hand. The slave's balls are strategically placed in a second harness, adding an extra layer of vulnerability and excitement. The mistress leads her pony boy around, occasionally giving him a sharp tug on the leash, making him walk on all fours. She uses a whip to guide him, the crack echoing through the air, and the slave's skin bearing the welts from her dominance.