Download and install CBBE 3BA (3BBB) via your mod manager ( Vortex or Mod Organizer 2 ). The BodySlide Workflow: "Building" Your Body

Install XP32 Maximum Skeleton Extended (XPMSSE) . This provides the necessary "bones" for the physics to attach to.

Ensure you have Nemesis or FNIS installed to handle the custom animations required for the physics to function correctly.

Once installed, the physics won't appear until you "build" the meshes in . Skyrim mods tutorial - how to use 3BBB

You generally need both CBPC (for collision-based "jiggle") and FSMP (Faster HDT-SMP) for more complex, fluid movement.

3BBB is not a standalone mod; it is an enhancement for the (Caliente's Beautiful Bodies Enhancer) base body that adds advanced physics to the breast, belly, and butt (hence the "3B" naming).