The latest version of the VRCFury prop/inventory manager now supports the Killer Kobold Vore system!
This significantly reduces the complexity of the install process and I STRONGLY recommend using it over the manual install process unless you have a reason to do otherwise.
An instruction guide on how to install the system using VRCFury is included with the default prefab located in VRCFury/Prefabs/Killer Kobold
Get it at: https://gitlab.com/VRCFury/VRCFury

Feature Overview:
-Stomach model with high quality materials, shaders, and an idle churning animation.
-Stretchy, interactable stomach walls with physbones!
-Substance Painter template to allow for easy customization of the stomach materials.
-Mobile seat for the prey that follows your avatar just beneath the floor along with the stomach within voice range for both involved parties.
-In-game stomach size and seat position adjustments!
-Camera system with highly adjustable settings that provides the predator with a moveable screen and selfie camera that can be placed in the world.
-toggleable and adjustable screen that can be placed in world showing an internal view of the stomach
-toggleable screen inside the stomach that shows the external view from the selfie camera.
-Digestive gurgle noises and burps with toggle animations and menu controls.
-Custom Burp animations for different avatar bases (WIP) Currently supports: Rexouoium, Wickerbeast, Nardo, Zairiza's Dragon, Zairiza's Cobra

More coming soon!
-Performance mode option to reduce load in crowded instances
-Fully set up FX controller with animations
-Fully set up parameters list
-Premade, organized menus that contain all of the inworld features and settings
-Premade animations that can be used to make your avatar's stomach churn and squirm as well as a guide to adding the required custom blendshapes in Blender.
-Prefab template for easy setup and updates
-VRCFury prop/inventory manager support for even easier setup
-Manual setup guide with pictures for advanced users
-A bottle of digestive supplements to help dinner settle.

Requirements:
This system requires an intermediate knowledge of Unity to set up, I have done my best to include a detailed install guide that walks you through the complete process.
The VRCFury inventory manager plugin if you wish to use the extra quick setup method: https://gitlab.com/VRCFury/VRCFury
You are allowed to do commissions to have it installed as long as both parties own a legally purchased copy.
Requires Mochi's Unity Shaders: https://github.com/MochiesCode/Mochies-Unity-Shaders

Known issues/limitations:
The stomach model appears below the ground underneath your avatar. If there are objects below the floor of the world they may clip through the stomach. If you eat someone on the second floor everyone below you is going to see a levitating stomach with your dinner inside.
The seat does work with full body tracking but there may be some issues/bugs due to the questionable nature of how stations work with Avatar 3.0. If your legs aren't working try toggling your full body off and on again in the VRChat settings menu.
The cameras are only viewable by people on your friends list. Others will only see a black rectangle where the screens are supposed to be. This is a hard limitation set by VRChat.
Your avatar will be very poor by default due to the number of audio sources as well as the requirement to include a light for the "water" shader.