From a technical POV:
Idk if you've ever invested time in reading a story only to have your hard-on go limp when the writing takes a poor turn, but imho the risk with AI for this kind of thing is huge atm, so I wouldn't bother. I also like emotional and intellectual complexity, so I've never enjoyed simple plots that drop you right into the action. Most of writing lacks this complexity and I imagine most of AI writing will be based on it. So, not for me.
Thinking more broadly:
If technically the story was very good, I could enjoy AI-written work but I wouldn't want to know it's written by AI. Idk why it's important for me to know there's a person behind the writing, but it is. I guess it's about connection? Even in non-erotic writing, the author's identity counts for something.