Urethral Play

I don't remember exactly know how I became excited about urethral play, but I think it was when a nurse I was dating told me that sometimes she has to catheterize patients. She promised to bring a catheter home from work, but it never happened. A year or so later, I was hanging out with some musicians who went on a small road trip in a funky converted school bus. It had narrow cots toward the front where we slept, and a sort of kitchen / living area in the back. On the first day, I had been flirting with Amy, a beautiful blond, curly-haired short and skinny singer. Naturally, we ended up in one cot together. We were trying to get it on under the covers. All we were doing is kissing and touching each other's genitals, which got me very hard. Something about trying to be quiet so the others could sleep, made it terribly exciting. I realized she had skinny fingers, and that gave me an idea. I whispered that she should try sticking her little finger into my peehole. She was a bit shocked, but then after a moment the idea grew on her, and she started trying to jam it in. I was leaking precum by then, but it was not sufficient lubrication. She didn't make much progress, getting the tip of her finger in only a few millimeters. Then Rich, the owner of the bus, said from his cot, "Hey, no sex on the bus." That embarrassed us both, so we quit fooling around, and Amy went back to her cot. For no particular reason, Amy and I never got together after that. Another year went by, and after a performance, I met Sue, another short, skinny girl, with Asian features. We got to fooling around in the motorhome I had recently purchased. She was excited by the idea of any sexual play that was out of the ordinary. In fact, during the year we traveled together, we seldom fucked, but we did everything of a masturbatory nature that you could ever imagine. So, she got some alcohol and cleaned her finger and my glans, and followed that up with KY once the alcohol dried. She started pressing and wiggling her finger into my prick. But it wasn't really going in, and was starting to sting a bit. I was just about to ask her to quit, when I felt a pop, and her finger slid in past the first knuckle. This was so exciting to me that I came right away. The cum was blocked by her finger, which should have scared me, not knowing what happens when an ejaculation is blocked. It turns out nothing happens. Or nothing bad, that is. It felt tremendous. The contractions seemed to last longer, although I did feel a sort of uncomfortable pressure in my dick. She was about to start pulling her finger out, but I asked her to leave it for a moment. While she did, I was pressing on the underside of my penis, and could feel the cum squishing around inside. But a minute later, the inside of my penis started to itch. Not much, but it was a genuine itch. Very strange. So I asked her to pull her finger out, which she did slowly, with a twisting back and forth method. Now that hurt! Fortunately, only for a moment. My cum flooded out in a gush once her finger was removed. The next day, the tip of my penis stung when I peed, and the area around the peehole was just a bit swollen, and then the day after that, everything was back to normal. One day, yet another year or so later, I was in an auto parts store and noticed they had some clear plastic tubing in various diameters. My mind went immediately to you-know-what, and so I bought two-foot lengths of 1/8-inch, 1/4-inch, 3/8-inch, and just in case it was at all possible, 1/2-inch. If you are interested, leave some interesting comments below, and I'll be glad to write up Part Two for you.