She orders him to lick up and down her entire ass crack and also swirl his tongue around her ass cheeks to catch any stray filth. Then she orders him to do some deep cleaning as she continues to degrade him. She moves through various positions so he can have good access to the depths of her asshole. At the end, she checks that her ass is perfectly clean and presents it to the camera so you can see how clean it is too. She parts her cheeks wide for your inspection. Then she puts the clamps back on her slave's tongue and leaves him secured in the bathroom until the next time he must perform his duties.