https://civitai.com/models/1196877/immobileblob-ussbbw-concept-lora-for-illustrious-xl

Model that creates basically blobs, extremely fat individuals that have become immobile,

I recommend using hi res fix as the faces/eyes look better.

I also suggest mixing it with my other "Fat" lora as it might produce some interesting results, Was trained on mostly solo images and i have not test multiple subjects in a scene to see how well it is.