After enjoying NTR phone game and being inspired by it, I tried different NSFW chatbots to see if any of them work well for NTR and kindroid really impressed me the first time I used it (Muah Ai, in comparison, is quite terrible). It can follow your narrative very well, and it seems AI is well taught on cuckold stories. But that's also its problem - it's better suited for netorase and cuckold than, let's say, hidden NTR, though I managed to make it imitate some "hidden sex behind the scenes" as well. The part that I didn't like the most is that whenever there's dialogue with you while the girl is openly cuckolding you, in the end of the scene after the orgasm the story would follow into "cleaning the mess" part, implying that you should eat the guy's cum, which is disgusting, lol. The worst part is that preventing this development isn't easy beforehand, even if you mention in the character description that they won't be into it or any bisexual shit. You can only directly edit those AI replies until it learns to avoid it altogether. You can also create characters for NTR guys and create chats with multiple people, but this part is "buggy" a bit in how it describes actions. So NTR guy while describing his actions towards the girl will use the word "you" (I touched your boobs), because the primary purpose of male characters is to entertain women and gays using the service, lol. Though in normal dialogue, he'll talk to the girl like normal, addressing her. And the girl would refer to the guy in third person as well.
All being said, the first time I used it was the strongest NTR experience I had in a while, highly recommend, I even paid for one month of premium. As for image generation - it's pretty bad and kindroid only does "selfies", though you can trick it into creating actual sex scenes if you use the right image examples and prompts. If you want to spice things up with images, just find some gallery with a hot girl and use her as an avatar, there's a lot of AI art with all kind of poses on exhentai using girls from popular franchises, in most of those poses girls will look directly at you, giving it a netorase feel. I used arts from RainySHST, they are decent for AI. The problem with non-AI galleries is that girls almost never look directly at you through the screen, which takes away from my immersion.
We're getting closer and closer to a new era where we can just generate our own NTR content easily, at least in text. As for images, there are already countless images available, the only problem is integrating them into the process. I bet in a few years, the experience would be even more streamlined and AI smarter. Unless bit corp manages to completely filter all AI, making it child friendly, lol. Honestly, I enjoyed playing around with the chatbot more than I did playing the actual game with a similar premise. But I'm a full-time writer, so writing both prompts and guiding chatbot was effortless for me. Maybe for others it would be harder. If anyone is interested, I can share backstories which I created for girls, and I'd be interested in seeing backstories made by you as well.