I did look into @Gummybear 's Nikki and Sarah series and it seems like a good one. I only read the first part but I will continue.
I’m not so sure about that 
I do quite like fantasy and/or magical elements. It doesn’t have to be realistic, only hm, internally consistent, would be the wording I guess?
Some of them are in deed interesting, and a silly story is a nice change.
Edit: Now I know I made a huge mistake.
I tried to write this to the best of my abilities. English is my second language, and I mostly write by feeling and google translate. I can’t write fast, and I don’t know many grammatical rules.
What I tried to convey was, that because I had my own experience with things like dementia in my family, I have trouble to understand this. It confuses me. I think about an illness that I never would wish anyone had to experience. Not something I would wish for someone to have, or to fantasise about it. I saw people suffer from this…
I don’t want to hide it, I don’t know what to do, but I certainly don’t want to insult anyone else that reads this…
This is the old text, and I can’t repeat how ashamed I am. I would prefer to delete this.
The Story “Her Mother in Diapers” can even serve as an example of how I view many types of regression.
As a disease and nothing good or desirable.
But many stories picture this in the complete opposite way. Sure, some of reasoning behind that are even understandable for me. But as soon as you put pleasure or sexual desire into that mix, it seems like a contradiction for me. That happens a lot…You can see it even in many err “other diaper related media”.
Do you know the feeling you get if you watch some of these optical illusions? Or magic tricks? The ones that seemingly defy the laws of physics? Thats what I feel with these stories.
That also does not mean there can’t be any of it the story. In small quantities it can be totally fine. But in many cases it is a central part and than it is probably too much for my taste.
Anyways, I didn’t want to delve too deep into that. It is just something that very much affects what I like to read.