I was with my (ex) Master at a very famous racecourse in the UK. The day was fabulous, dressed to impress (white skintight dress, bare legs, heels, my "day collar (slim, leather, one ring)).
Getting towards the end of the day Master pulled me to him and whispered in my ear "Sir needs you". I giggled and ran my hand over his crotch; I could feel all 10 inches of his hard on throbbing beneath the trousers of his suit.
Sir walked me outside, when we got to a relatively private part of the grounds he reached into my handbag and pulled out my leash. Attaching it to my collar he roughly pushed my to my knees and unzipped his trousers. Taking his cock in my mouth I very quickly went to work, licking down the shaft, kissing the tip, engulfing it with my warm wet mouth. Sir started thrusting his hips, pulling the leash tighter so I could not escape; what followed was a full on face fucking. Eyes streaming, gagging, drool escaping from my slut mouth.