First, I put clover clamps on my outer labia and spread them wide, so you can see everything. Then, I lubed up my stretched peehole and slid in a curved wearable vibrator, pushing it in until the tip entered my bladder. It feels wonderful, but I was impatient for a little more sensation in my urethra, so I reached for a big steel sounding rod. I played with my bladder sphincter for a bit, showing how it resists a little before the sound pushes past it. That feels incredible, popping in over and over! Then I slid the sound in as far as it would go, telling you about the sensation of having it pushing against the far wall of my bladder. My pinpoint vibrator on my big clit was the final touch, and I came hard, squirting piss as I took the sound out.