I too was just admitted to the hospital for another procedure. Since the reason for being there had no relation to my bladder, I thought perhaps it was an error when I saw that there was a Cathy kit and a disposable enema on the adjustable table in my room.
After lots of questions and notes, the nurse told me to change intolerable the gown, and that she would be back in a few minutes so that we could "get started". I did as she said, and still was thinking that the supplies were in the wrong room.
After a few minutes, she returned, not alone but with another cute young woman. She said since I was going to be given a general anesthesia, I was going to be catheterized, and that the other nurse was a student nurse and she would be performing the procedure. At this point it was clear I was not going to escape the fate. I remember flushing with immense embarrassment as I lay back, and the gown was lifted.
They both donned gloves. The older nurse stood above me and told me to give her my hands. She told me I could squeeze her hand as hard as I needed to; I said ok not really understanding why that might be necessary. She then asked if I was ready, and I replied yes. She nodded to the younger nurse, who then asked me to scoot down in the bed as she stood between my legs.
The student nurse then began to clean my penis, and for a few moments I actually began to enjoy myself. Soon after completiing the prep, she opened the catheter. She then inserted it into something I had never seen and haven't seen since - it was shaped like a small pistol, but with two rollers top and bottom. As she put the catheter into the device, I could see that as she pulled on a lever where the trigger would be, it would advance the catheter. It also had a tube of surgilube attached, so that it would apply lubricant as the catheter advanced. She asked if I was ready, and I nodded yes. With one hand she took my now slightly hardened penis, and then rubbed the tip of the apparatus until it gently came to rest at the end of my hole. I was thinking at this point I might enjoy what was coming next, but I couldn't have been more mistaken. She pulled the trigger, and it felt like a giant rod was searing into my penis. The senior nurse held me down as four or five more squeezes moved the catheter to my bladder. I felt it pop past the valve in one final moment of agony. Thinking it was over, I began to relax, but the young nurse began to twist the unit and pull on my penis, causing even more pain. The older nurse asked what was wrong, and the student replied there was no return. The lead nurse said that she was sorry, but that they were going to have to withdraw and do it again. I knew it was in the right spot, and pushed for all I was worth. The young nurse said wait, I have some urine return, and so I was done with the first part. Shortly after, I became hazy and actually passed out, learning later it was from a vasovagal reaction.
To my surprise, in subsequent years, I have engaged in catheter play numerous times, always with good result and causing very plesant sensations.
The enema was another story in itself; One for when I have more time.