Have anybody tried or mayby someone is doing such requests : based on series of photos, learn AI to use certin face for generated images ?

I'm asking because I'd like to see my wife (on photo) hugely pregnant with big breasts. For some reason she has suddenly becamed against everything connected with pregnantcy, no pretending, no talking, no pre sex teasing - eventally no sex.

Knock yourself out with this amazing tutorial; I followed it with great success.
https://education.civitai.com/using-civi...a-trainer/

Also, please talk about it to your wife, if it was a part of your sex life she enjoyed before. It could be important. This isn't just about the fetish, and the subject matter is very sensitive. More importantly, it's not only about your enjoyment.

Thanks, with my wife , it's hard thing. Women sometimes just hae somthing like that "no, and deal with it, I don't fee the need and that's your problem, I don't care". So that's going to be my solution .

In addition to LoRA, you can simply try to do face-swap (e.g., ReActor, etc.) with 1 image of your wife. The generated image may not be as accurate as the one generated based on trained LoRA though.