I tried to train this slider to enhance just the butt and not so much thighs and the rest of the body.

On Pony the image might change slightly depending on weight, seems like it has two sections it works in -2 to 1 and from 1 to around 3.

Minimal picture impact from around -2.5 to 2.5 on SDXL, If you go lower or higher the image might change more drastically.

Works great with SDXL as well.

It does not require a trigger word, but adding ¨Bubble Butt¨ seems to help.

Hope you enjoy!

As always any feedback and submitted images are welcome, thanks :)