This is the video I've been working on editing, "ureter releasing piss into bladder"!
Do you love looking inside me as much as I do? I made my piss much darker than usual but used a catheter to fill my bladder with clear saline. Then I used an endoscope to look inside and watched one of my ureters releasing pee into my bladder. It's not a steady stream, instead it looks a little like a tiny mouth that intermittently opens. The contrast between my dark urine and the clear saline made it easy to see what was happening. I emptied my bladder and refilled it, then watched my ureter a while longer. The inside of my body looks so alien! After a while of watching, I just had to reach for my vibrator. Finally, after a satisfying orgasm, I removed the endoscope and the catheter from my bladder, spread my labia with my gloved fingers, and pissed out the mix of saline and tinted pee.