Attempt to have Pony create cuckold images, with one couple having sex while another man watches. It may work for other gender combos, but it isn't trained on them.

Recommendations:

Negative - putting "2girls" "1boy" "threesome" in the negative prompt helps to improve the output.

Prompt: Needs to be as specific as possible, see reference images for examples. Prompts such as "clothed man watching from a chair" are useful. The model works best for some sexual positions. Trial and error I'm afraid!

First version, and this concept is tricky, so it might not work well every time. Feedback welcome.