After a day of mountain trekking and using her human mat for exercise (view previous video), Lady Scarlet is ready to wind down for the evening. Her hiking boots are caked with mud from the mountain trails, and she decides to publicly humiliate her slave by having him clean her soles. She scrubs her feet thoroughly, determined to make them spotless and gleaming. As a result, her slave’s tongue turns an disgustingly black from all the dirt and grime.