Okay playtoy, go get me a cup. When you return, tell me this... have you ever drank your own pee before? You can be honest with me, I won't tell anyone... you are going to take care of that for me. Have you gotten your cup? Good. Take that little needledick out and empty your bladder into it. Do it NOW!
Did it feel good to take a pee? At least that little thingy of your got SOME kind of relief. I want you to raise that cup to your lips and pour your piss into your mouth. Do it! Fill up your mouth with your warm liquid. Hold it in there. Do NOT swallow it. While you hold your piss in your mouth, I want you to begin to stroke your cock. Do it slowly for five minutes. You see, when it comes time for you to swallow that piss in your mouth, I want you to WANT to swallow it, and not just do it because I am telling you to. If you swallow your piss before the five minutes it up, I want you to fill your mouth up again and start the five minutes over.
All done stroking? Good job. Now you may swallow. Mmmmmmm, I hope that tasted good slave, because I want you to fill your mouth up once more. Hold that piss in your mouth again and pick up your pen. Now, write, "When I masturbate, I sometimes do it with a mouth full of my own urine. In fact, I have some of my pee in my mouth as I write this. When I am finished writing this sentence, I will swallow it and probably enjoy it."
Did you swallow it as you wrote you would? If not, swallow it NOW. Very good job slave. I think you deserve a reward for being so obedient to me. Stroke yourself for five minutes however you like. You better not cum.
When you are done, take your hands off of yourself and continue...