Be very clear that creating, sharing, or saving sexualized images of real people without their consent is harmful, even if the image is fake. For minors, this can also have serious legal consequences.
You can say, “AI can make things that look real, but using it to embarrass, sexualize, or threaten someone is not okay. If you ever see something like that, or are asked to make or share it, I want to know so I can help.”