I mixed up an Ivory soap and 10% glycerin enema very early this morning. A total volume of 3-liters in my amber latex rubber bag. Lots of room for more, but I've learned that more than 3 liters is usually more than I can really effectively take, enjoy, and hold. Of course, in this bag there's enough room for two enemas.
I made sure that the enema was well mixed in the bag and the soap was dissolved. After inserting and inflating my latex double balloon catheter nozzle into my rectum, I waited until the time reached 0300 and then clicked open the clamp and allowed the solution to flow. As the solution flowed into me, my penis got very erect. There was some minimal internal obstructive material in my colon as I could feel the pressure rise briefly inside me and then feel the solution flow into the the next higher reach of my colon. As I lay on my back on a thick towel on the bed, I felt the solution reach the top of my descending colon and start flowing into my transverse colon.
As is typical for this nozzle and type of enema, I have a check valve inline so that when the inevitable powerful peristaltic contractions cum, it won't push the contents in my colon back into the bag. It's challenging, because the only place for the liquid to go is further up the colon as the muscles contract. When the muscles relax, I can feel and hear the churning about of all the enema volume within me. It adds to the dissolving and softening activity taking place within me.
The first few minutes was just the solution trying to make its way through my colon. The first set of strong contractions came seven minutes after opening the valve. These contractions were in my rectum and produced a very stimulating sensation in the area of my prostate. By rocking slightly, I could get the inflated balloon, the nozzle tip, and each contraction to stimulate me internally towards orgasm. By the 10 minute mark, more than two thirds of the volume was inside me and the flow had reduced to a trickle as the contractions were getting stronger and came from further up the colon. The only way to empty the bag was to raise it higher than what could be provided by this position. I could have gotten on the floor to allow the bag to drain completely, but I probably would have been greatly challenged to get back on the bed to finish this.
At 17 minutes, the waves of contractions were almost continuously churning my colon throughout much of its length. Now the rocking action was as much about keeping the inner balloon in as it was to stimulate my prostate. This DBC nozzle is in its last days and I didn't want to inflate it further for concern that it would rupture and I'd have a major blowout. It was a very thick towel under me, but once the flow started, I knew I could not stop it if the balloon ruptured.
OTOH, the other thing I couldn't stop was the stimulation towards cumming. I went "over the edge" with a very strong internal contraction and a nice flow of semen came spurting from the tip of my cock. I let run down my my cock, over my balls and around the inflated outer balloon as it flowed towards the towel. I looked at my watch to see it was 0321. I lay on the bed feeling the waves of contractions. If there was any flow of the enema solution into me, it was minimal.
I waited for a couple of minutes to see if the contractions were subsiding after I had cum. They seemed like they were getting more intense and that the ability to continue to hold this DBC nozzle would eventually be lost. I opted to pivot around and get off the bed and into the bathroom between the strongest contractions. There was probably 500 ml left in the bag, so I closed the clamp and managed to get myself to the bathroom.
Once on the toilet, I released the inner balloon. It was 0325 and the enema started flowing out of me. The strongest of the release contractions came starting at 0328. The soapy enema with glycerin had done its job in softening and dissolving the contents of my colon, now they were producing incredibly powerful contractions that took me to the edge of nausea. It was tempting to start rinsing to reduce the intensity of the contractions but I managed to hang on until most of the enema had emptied out.
Two warm water enemas to rinse out the soap and glycerin brought my contractions back in check and brought nearly clear expulsions. I settled into bed and drifted off to sleep, with the afterglow of a great orgasm and a clean colon. It was a great contrast to the more "soothing" enemas I have been taking recently.