The stall-girl needs to be punished.

After a brief period of thought, I decided to use the stall-girl. Fucking someone who was there to be fucked willingly was always nice, but it is not every day you could fuck someone bound and gagged like that. Seeing her tied up and helpless just screamed "kinky".

I walked into the stall and closed the door behind me. I locked the door closed, giving us our privacy. She muttered something, her words lacking language as they were censored by the horse-gag in her mouth. I grabbed at her covered cock as she hyperventilated, feeling my stroking but unable to derive pleasure from it thanks to her chastity belt.