Peegasm, Also Known as Pissgasm

So far, I've attained 'peegasm' also known as 'pissgasm' only twice. Every now and then, I'll try it again. The goal is simple, to emit urine and semen at the same time. In practice, it's so nearly impossible that it's exactly the kind of challenge I like. The male body is specifically designed to block the flow of urine while ejaculating. The urinary sphincters clamp down tight. My job is to thwart that. So, after trying a few different things, I finally settled on the following technique: 1. I wait until my bladder is uncomfortably full. One time I went too far with this and found out the body will start leaking out spurts of urine despite all efforts to keep it in. As I went running to the bathroom, urine spilled out on the floor leaving a trail behind me. 2. Then I start jerking off. As the 'gonna cum' feeling starts to build up, I try to maintain that feeling, but also try to let go and pee. Almost always one of four things happens: a. The orgasm that's starting to build subsides. b. The urge to urinate subsides. c. The piss starts flowing but I don't cum. d. I have an ejaculation, but didn't pee. Of course the last variation is the worst, because then the fun is over. 3. I go through a few cycles of building up to orgasm while really feeling the urge to pee, hopefully avoiding ejaculation until I'm actually urinating. Quite often, I'll start to urinate, but the orgasm doesn't happen, or the orgasm will shut off the flow of urine. I've tried letting the orgasm happen, then opening the pee valves. That doesn't work. I've tried stimulating my cock really vigorously while peeing, hoping to instigate an orgasm. That mostly doesn't work, but sometimes the orgasm will happen. Unfortunately, that shuts off the flow of urine. The magic seems to be mental. You want to just let go. To really relax the urinary sphincters. The first time it worked, my wife was asleep inside the house. I was outside on a hill in an orchard late at night at the edge of my front yard. There was traffic on the road nearby, but unless someone shined a spotlight sideways right at me, they would not see me from their cars. I think this semi-exhibitionism heightened my experience and may have made the peegasm possible. I was standing, jerking off vigorously, and really, really had to pee. And then it happened. The pee was flowing, and then, it switched from a steady stream to orgasmic and very fluid spurts. I couldn't see clearly in the dark, but I'm certain I was ejaculating while still peeing. The other time, I was sitting on the edge of the bathtub. The tub was dry. The light was on, so I could watch clearly. Again it started with urine flow. That smooth flow was interrupted by spurts of white cum. 'Interrupted' isn't quite the right word. The urine flow never shut off. The flow became chunky as the output was the mixed thin yellow fluid of urine interspersed with white sections of cum. Very exciting! It was a super-strong orgasm. Oddly, when it was over, I still had quite a bit of piss in my bladder, yet I couldn't continue peeing for a minute. Finally, the muscle tension let go, and I was able to finish the urination. That's it for now. I've gotta keep practicing. In fact, I have a male friend who I think I'd like to practice this with. I'm not sure exactly what we'd do or how we'd accomplish it, but I can imagine it might start with us both sitting on the edge of the tub, but holding huge amounts of urine in our bladders, and maybe wanking each other, with a lot of feedback, like "Hey, wait a second..." and "OK, go on..." and so on.