When I was in my 40s I was living with a gorgeous girl from the Eastern Europe who was 23 years old. It was the tail end of the communist era and she had never been abroad.and was really awed by our lifestyle in Europe.
After a while we managed to get a visa for her mother to visit and stay with us for a couple of weeks. The mother was actually a year younger than me and quite attractive. A trifle bizarre really. A few days into her visit she was feeling unwell probably because she over indulged in the rich and varied food.
Now, although I come from a predominantly medical family, enemas were not something we resorted to very much at home. In fact I only remember my eldest brother getting one once, and this was done at the clinic which was part of the family business.
I digress. She decided that she needed an enema and asked if I had any equipment in the house, which I didn't. She was surprised because she expected every household to have it. Enemas were routine in her country and asked her daughter if she'd had one since she moved in with me. This was still quite early in our relationship ( which lasted for 5 years) and the girl was shy to discuss such matters in front of me. She admitted sheepishly that she was too embarrassed to tell me. Mama was annoyed.
A kit was acquired and they were in the bathroom where she insisted on administering to her daughter. I was downstairs but could hear that there was some altercation going on and the girl was protesting loudly. The mother called me to go upstairs and into the bathroom. I stopped in surprise! My girlfriend was bottom up, naked on all fours on a towel on the floor with the nozzle inside her and the bottle hanging from the shower rail. My heart was pounding and I found the whole scene incredibly erotic. She was so exposed! She was complaining vigorously with Mama, because she didn't want me to see her like that. She turned her head away and buried her head in the towel in shame. I made to leave and give them some privacy but the mother insisted I follow the procedure so that I would know what to do when she returned home. She withdrew the nozzle and showed me how to reinsert it and open the valve. The girl was trembling with embarrassment and although she was really uninhibited and she'd walk uninhibitedly naked around the house and we had been intimate, she was truly unhappy that I should see her like that. Her mortification further excited me. It's one of my erotic triggers. She was let up and told to stand still before she sat on the toilet. Assuming it was all over, I was was about to leave the room but the mother stopped me and said she wanted me to give her her enema. I didn't object as by this time I was on fire and was relishing the whole thing. I was in erotic paradise. She washed the equipment and set it all up. Then she removed her jeans and panties and assumed the same position her daughter had been in. Oh my God!
I really didn't know what to think and it was so arousing and exciting, my hands were shaking as I inserted the nozzle gently. Deeper, deeper she insisted. My head was spinning and I was feeling giddy. My penis was about to burst out of my trousers. The girl suddenly gave a yelp, sat down quickly on the toilet and let go, gushing noisily. It was almost too much of an experience. Too much all at once.
So there I was, nozzle in hand, a grown woman's naked backside and fully exposed genitals in front of my face and a younger naked woman evacuating her bowels a metre away! Her vagina was dripping! The damned woman was loving it and in front of her own daughter!
Wow! After her shower I rushed my girlfriend into the bedroom and we had some incredible sex. I'm pretty sure Mama could hear our noisy lovemaking. I was so turnedon.I I really wanted to have a go with her too, but thought it politic to refrain. It happened at a later time. But that's another story.
I didn't develope any fetish after this experience and the girl gave herself enemas in private. She made no secret of it but she preferred her privacy. I was comfortable with that.
And that long winded account, ladies and gents, is my only ever experience with enemas.