I'm new at writing erotica. For most of my stories, except "The Conversation" and my latest -"Larrin" - I wrote the core parts and used AI to generate the narrative scaffold to produce a full narrative. I would not consider that "AI generated," but I'm willing to accept the forced "AI generated" tag as about 40-50% of the text was AI generated [It is still odd to see "AI generated" given that almost all the characters in my stories are based on people that I know IRL. I even retained many of the names!].
But for my latest story, I purposefully wrote the ENTIRE narrative text myself, and only then used AI to polish the final product. Less than 10% of the text was even touched by AI, and those parts were simply "polished" based on my own original writing. It is a big stretch to call that AI generated!
I will give this benefit of the doubt: I find that my own writing style has been informed by how AI had adapted my earlier stories.