Mary and Sir, she must obey, the start.

Mary stood in the corner of the hotel room. 
“Pull up your skirt” sir ordered.
Mary did as she was told and pulled up her short tartan skirt, to reveal a pair of deep red cotton knickers.
“Part your legs” sir ordered.
Mary obeyed.
Sir was sat in the hotel room arm chair and about 5 feet from where Mary was standing and had the perfect clear view of her waiting nervously for her next order.
“You may release, slowly” sir ordered.
Her belly was slightly swollen and firm with her extremely full straining bladder.
It took all of herself control not to release a full flow of her pee into her waiting knickers.
But sir had been an excellent teacher and disciplinarian.
Mary had been in contact with sir over the last two weeks or so, it was a friend of a friend who was also in to her piss needs and kinks, who had put her in touch with sir, and he had not disappointed her.
She had never done so much marking, and loved every drop, so exciting, so kinky and so dirty.
Sir had made her mark and pee on a train in her car, in her works canteen and restroom floor, she had pissed over her clothes in drawers on her desks , worktops, she couldn’t think of a cup, glass, vase or dish that had not received her hot golden nectar. Anywhere sir ordered her she would obey without question. And every time he had made her hold as long as possible, making her knickers soaking wet  with that slight leak from her pussy lips. Nearly every time he wanted to see evidence of her perverse work, not her actually pissing but the results of her urination work.
So now she stood there before sir her knickers slowly starting to show the release of her pee and the slow spread of wetness and then the steady drip on to the carpeted floor, some of her yellow pee started to run down the inside of her legs, stopping at her white socks.
Sir had booked them into the penthouse suite, which meant there was so many potential areas and things to have piss fun with.

If you want me to carry on with this piss filthy story, please let me know, and I would love to hear any ideas or wishes you would like Mary to do for you. 
All comments will be welcome and answered.