Perfect timing

We had met once in the past and it was fucking intense! She'd really played with me the first time by getting me blind drunk and pissing on me in front of a park full of people and if you know London in the summer you know how crowded green spaces can become. The problem was this never stopped me going back for more.
Miss C has never been one for regular conversation, it has always been on and off over the years and always on her terms. She has never ever had any interest in seeing me regularly, in a way I guess I have just been a casual booty call but I'm good with that, it works for me. So, if an opportunity arises where I can be of use to her I can't lie, I jump at the opportunity...
So one evening Miss C sends me a text letting me know that she was in a pub in Shepherd's Bush that evening and that I should come by and be her toilet. Coincidentally, I was in that part of west London myself that night so I made my excuses to my mates and made my way to the pub she said she was going to be at. By the time I got close she began to blank my texts and I was scared that I had missed her, it would not be the first time that she had bailed last minute! Lucky for me this wasn't one of those times. As soon as I approached the door I could see her pink hair straight away, her back was to me and she was laughing away with friends and family as she sat at the bar. It was although she sensed I had arrived because as soon as I entered she turned to face me, downed the last of her pint and made a comment to her friend which they both laughed at whilst looking right at me. I was led straight back out of the same door I had entered through and I asked her where it was she was taking me, to which I of course received a blunt reply. With a twisted smile on her face she comes out with "perfect timing really, I have been bursting for a piss for some time."
Miss C knew it shouldn't be wasted , She is cruel when it comes to using me, especially if I look back on past experiences. Not only is she completely selfish but she can be very aggressive when using me for her benefit, there are no subtleties, no compassion, just her will. From what I have experienced and the few discussions I have had with Miss C, I know that she is a huge fan of humiliation and degradation. It gives her great joy the more I say no, I've learnt that she will quickly exploit my weaknesses so it is best to do as I am told before things become far worse. It was my embarrassment that she thrived off of last time, this time I will do my best to do exactly as I am told.
She gives absolutely nothing away as she leads me blindly through the back roads of west London, we reach a park where there is a group of 5-6 chilling in the play area and we walk across the grass to the opposite end, to a corner with a few small bushes. I look back towards the group as we go behind this bush to make sure that they can't see what is about to happen - she couldn't give two fucks. Luckily she hasn't got the thirst to show me up in front of people again. I'm instructed to lay down on the dry patch of dirt between the pitiful bushes and wooden fence. I start taking off my jumper so not to get it covered in piss and then begin to remove my t-shirt. I am quickly told that it has to stay on! I'm laying in the dirt propped up by my elbows looking up at her as she unbuttons her boyish jeans, she positions herself over my face, a foot either side of my head. Her jeans come down followed by her underwear and then this jet of hot salty piss flows straight out of her before I even have the chance to open my mouth to gulp it all down I quickly realize she isn't aiming for me to drink it all like last time, she couldn't care less if it spills everywhere, that's why she isn't squatting close, she wants my face and clothes covered...! Piss quickly begins to sting my eyes as I chased this golden fountain with my open mouth swallowing as much as I could, I must have looked totally pathetic and desperate to consume her urine but I was there for that purpose and that purpose alone.
She asks for my jumper which I really did not want to part with, however, I knew better than to disobey. I put it in her hand she proceeds to wipe her ass and dripping pussy all over it, then mops up the remaining liquid trailing down her inner thighs, throws it back at me as she pulls up her knickers and buttons up her jeans. I of course was brought up with manners, and know to thank someone when they give you something and that is exactly what I did. I pulled my jumper over my now see-through white t-shirt and stood there smelling and looking like a public urinal. She laughed.
I escorted her back to the pub and it was like nothing had happened, no mention of it on the walk back, no passing comments, no nothing. Miss C really does have something about her, I've felt so used on the occasions that she has used me, unfortunately it has just been once in a blue moon. On my walk back to meeting my friends I contemplated what my next meeting with her may be like and when it would be, but I'm still waiting...