This lora creates images of doms with a bigger body and subs with a smaller body. If you want to use this lora, use the prompt format from the sample images:

ILLUSTRIOUS

Strength: use it around 0.3-0.5 (negative strength creates extreme size differences, often very small dom and big sub, eg. tiny hulk and gigantic woman)

PONY

score_9,score_8_up,score_7_up, small sub and huge dom, size difference, 25 yo female sub hugging hulk dom in bed

--> keep the bold part intact, change the rest:

score_9,score_8_up,score_7_up, small sub and huge dom, size difference, ..... (some kind of) SUB ..... (doing something) ..... (some kind of) DOM

Works great with my PONY checkpoint:

https://civarchive.com/models/1133941/maxxxxponymix