I really enjoy the CYOA games that are more of hypothetical game or mental exercise. My only issue is that I seldom see CYOAs of stuff like weight gain, inflation, expansion, etc. Usually they are only tangentially related from what I’ve seen.
I suppose this topic about sharing whichever CYOA you enjoy and perhaps create new ones.
Examples of what I am talking about (NSFW)
https://www.reddit.com/r/nsfwcyoa/ (Where you can find most the lewd CYOA games)
Hyper Body Cyoa v1 - Album on Imgur (General bigness)
Isekai Form CYOA Completed - Album on Imgur (Can choose up to pretty silly weights)
The Boob Note V4 - Album on Imgur (Breast Expansion)
Most the CYOA games of this type are more of a thought experiment than a legit game you can play.