Pixeldrain
So, here's an example of this proof-of-concept for monster-on-monster sex. It just has some placeholder animations for imps. I tried to figure out how to create a Stable Diffusion model for HDoom, but it's too hard to try to exactly nail down the style. AI tech just isn't there yet. But, the coding works pretty well for somebody else who's better at me at animation to use.
I also figured out how to color-map the missing imp animations (anal, lifting). A lot of manual fixing up to get it right, but hey, there's six new animations we didn't have before. The shothumper's (black imp) blush face could use a bit of fixing up, though. A bit too much red, which doesn't match the face well enough.