@OTK4fun said,
Somewhere around ten or twelve years old Dad took over the job of giving me and enema.
The same thing happened to my siblings and I around the same age. Only it wasn't our dad, it was our RN grandmother who taught us personal hygiene. Once we were responsible for ourselves, we started swapping enemas with each other, primarily for convenience. Sharing a bedroom, because mom and dad's house only had two bedrooms. Nudity wasn't and issue with us, seeing one another naked on a daily basis. It was simply more convenient, taking less time, than doing enemas solo. Besides, when we were younger, mom gave us enemas in the bedroom together, something we were used too. On top of that, as preteens, being given an enema is a lot more pleasant than doing one yourself.
Grandma had unknowingly set the stage, when as preteens, she taught moms two younger sisters personal hygiene. Afterwards, giving the girls responsibility for our evening bath including enemas. They used grandma's big downstairs bathroom with a large dual head walk-in shower. Making it convenient for the girls to put us in the shower together, then get in to keep order while they bathe us. So, on evenings when the girls gave us enemas, like us, they were naked. Having received enemas together from the girls for a number of years, quite frankly, we preferred being given enemas. We were quite comfortable with someone giving us enemas, because we were accustom to it, opposed to doing solo enemas.