>>9024090
This is rare but interesting to regularly attempt. I'm not sure if this could directly answer your question
>good model to generate images featuring bondage
I was on this for a slight while, for several weeks. If you prefer prompt adherence, Illustrious models have been effective for me. Also knowing the basics of danbooru tags, prompts - i.e. bondage, shibari, bound wrists, arms behind back, arms up, and you could try and see how your first gen/base gen turns out. For rarer bondage positions, you might need to find loras. The typical positions that you can prompt immediately seems like arms behind back, that gives usually a boxtie. Also from my experience, the ropes tend to change and add up when you gen several times with the same seed.
But if your goal is visuals as well as realism, I'm unable to advise much, but like yes you can try the models mentioned by the earlier anons, img2img using a realistic model after getting a decent base gen perhaps.
I won't attach an image here but could include catboxes as this is a semi realistic model I used, that I think isn't suitable for this thread but liked it for its prompt adherence.
https://files.catbox.moe/j21uxz.png
Base gen
https://files.catbox.moe/9s1hin.png
Adetailer fixed, especially the eyes and nipples
https://files.catbox.moe/te39j9.png
Base gen
https://files.catbox.moe/fwvdka.png
Adetailer fixed for face.
>>9024840
Not thread related but there is a small community with the same interest
https://boards.4chan.org/aco/catalog#s=female%20bondage
Just only a precaution that a few cavemen/traditional art fans are against AI there.
>I didn't until
Strangely there were 90s cartoons of a girl character constantly captured and always a damsel in distress/DID. That piqued my interest but couldn't understand it when younger. Only later when films like Fifty Shades made this fetish more mainstream that I was finding communities and stumbled on that cartoon female bondage thread ultimately.