Technically a mod of a mod, but whatever.
Basically, you need a special version of Figura included in the modpack - at least until they upload the version that fixes chat commands to curseforge - and you need a special Figura model.
Spoilers ahead, the included Figura model pretty much can do this:
Your weight is tied to your health, and your health is uncapped (as long as your hunger is above a certain amount). The more health you have, the bigger funny slime woman Chloe gets.
It’s also more than just visuals too, thanks to Figura’s extremely confusing yet surprisingly simple API, the more pinkish Chloe is, the slower and more susceptible to fall damage you are, and the more cyan Chloe is, the more agile you are.
Gaining lots of weight, holding it, then quickly losing it = fast, think about it.
It’s all based on automatic commands though - and more specifically commands exclusive to certain mods included in the modpacks. Make sure to have those mods, and make sure to play with Cheats on at all times, else things will break.
And guess what? It’s basically done - well as done as I’m willing to do it at least. It probably has a few bugs and leftover useless code that I’m not gonna bother with - but guess what? It’s all just lua and blockbench, quite easy to learn and modify yourself. Turn this into your futa furry oc or whatever i don’t care, and if you find any bugs fix them yourself, leave me alone.
here is the woman
here are your options:
figura file alone, no mods or anything
chloe.zip (44.9 KB)
A curseforge modpack including all of the required mods and the figura itself
Chloe_Barebones.zip (4.0 MB)
My personal extremely buggy modpack (usually disabling distant horizons fixes any issues), figura included as always.
huehuehuehuehuehue.zip (4.1 MB)
If you're having trouble trying to modify this shit heres the resources I used to learn how to make this:
Home - Figura Wiki
https://applejuiceyy.github.io/figs/
Old wiki with outdated code: Home · Moonlight-MC/Figura Wiki · GitHub
If you’re still stuck ask someone that isn’t me because I’m gonna go back to playing Overwatch, bye.
If you manage to make something, feel free to share it here. If I’m still reading this ill probably quote it in OP