Your time at the roller rink is interrupted when you see a s.. (OnlyFans)

Your time at the roller rink is interrupted when you see a sexy woman approaching your area. You watch the droplets of sweat roll down her back, ending at the waistband of her tight shorts. Hugging to every curve, the material getting more clingy as it becomes damp. 

You offer to help her with her laces as they've gotten tangled, kneeling in front of her. Glancing up at the hot moist spot between her legs, her shorts climbing high and outlining the crease in her pussy beneath. 
Noticing your staring she pushes you down, startling you too much for you to react when she spins around and sits heavily on your face.

Your face engulfed in the heat of her ass, gasping for breath between her cheeks and smelling her sweaty asshole through her clothes. 
She grinds herself down on your face telling you how useless you are as an assistant, so you better hold still and make a decent chair for her.
Lightheaded and overwhelmed by the feeling of this curvy goddess using you as a stool in public, humiliating you and rendering you to just furniture for her to use.