Thanks. I paid attention but still didn't see how:

realistic images of a child engaged in sexually explicit conduct or realistic images of the sexual organs of a child, for primarily sexual purposes;

covers the example in question:

If you take a picture of a 14 year old girl (age of consent is 15) and use Grok to give her bikini, or make her topless, then you are most definately producing and possessing CSAM.

How about you?