About Max Sick Gains

Skyrim SE mod to change Player Character (PC) body shape by training.
Many different shapes are possible by changing Bodyslide shapes at different fitness stages.

NPCs body shapes can be varied as well.

This mod's philosophy is to make people to look like they should according to their profession.
Warriors should be muscular and ripped, mages should be thin... or even fat and flabby.

Features

Change fitness levels (stages) by training.
Player can have a different body shape (Bodyslide preset) and/or muscle definition at each stage.
Unlimited fitness levels for PC.
Unlimited body types for NPCs.
Works for men and women alike.
All vanilla races supported.
Custom race support is possible with almost no hassle.
Optional use of normal maps to make characters ripped/fat/plain according to their body type (this means: no fat bodies with ripped abs).
Total control on how each NPC should look like. No randomness for the sake of randomness.
Training is gained based on what you do, not what skills you level up.
Casting magic won't have impact on your appearance per se, but adventuring will.
Swimming, sprinting, jumping and fighting using your body all contribute to your overall appearance.

It's as simple to use as it can be.

Powerful and flexible.
No patches.
No need to delve into arcane configuration files which have almost no public documentation. The companion app does that for you.