Had a bunch of enemas as a kid. The one I always remember was the day I was in the bathroom and my mom walked in (I forgot to lock the door) and found me touching our red bag over by the tub where she kept it. Guess I was about 10 or so. She asked what I was doing and I turned beet red.
Then, she closed the bathroom door and said, "Well, if you are so interested, let me show you what it does." Told me to take off my pants and sit on the toilet, while she took the bag and hose from its hoot, turned on the hot water tap, and then stuck the bag under the faucet. She filled the bag about half way, the screwed on the hose, and let some water out into the sink through the hose.
She told me to stand up, then she sat on the closed toilet, and told me to get over her legs. Took some Vaseline from a small jar she had close by, and put some lube on my butt, eventually sticking her finger inside me. Then came the end of the hose. I quickly felt the warm water, and wanted to get up right away. She put her hand on my back and told me to stay where i was.
I started to get a cramp and told her. She stopped the water for a second.
"This is called an Enema, Jack. You get them when it is hard to go to the bathroom." Soon, the water seemed to stop, and she took out the tube, then stood up, opening the toilet.
"You can sit down now, and let the water out." She said. I did that fast and everything came out.
"Now you know what this is. If you ever have problems going to the bathroom, I will give you another. For now, don't play with the bag. This is medicine, not a toy." She put the bag and hose in the sink, opened the bathroom door, and walked out, closing the door behind her.
I reached over and felt the wet bag. The feeling was interesting. I had to figure out how to get her to give me another one.