I can strongly recommend this story:

https://www.fimfiction.net/story/492172/return-of-puffony

I've already read the finished product, and it's got hypnosis, silliness, diapers and a lot of the common features in the stories I write. So go over and give it a read!

(Plus, it's by two authors I've worked with in the past to make many of my stories in the first place.)