You (or whomever you may choose) desire a bigger tush, but how exactly will this be accomplished? Just one name anyway from the results you crave, butt do not expect anything amazing! Well, maybe. Extremeness and NSFW-ness of results may vary.
this is an alternate version of the body expansion scenario shindan, which includes breast expansion as well as belly and hip/thigh/butt expansion. this generator is meant for all genders, and uses they pronouns for the name entered.
Translation of https://shindanmaker.com/a/581501An ero trap dungeon simulator focused on growing breasts.The translated original description is too long to fit in here so please see this link for instructions: https://pastebin.com/aKPVtbNG
This was just an experiment by me to see how this worked. I tried to get a bit of everything in here so it may be a little bit of a mess. Let me know of any suggestions you have and I can add them! This Shindan is meant only for female names.