Llama3 has dropped and it seems quite a step up in intelligence. I've tried it and I'm surprised that the official instruct-tuned variant will engage in erotic roleplay! It sometimes refuses but it's not by any means as strict as the previous versions.
The base variant of course has no guidance built in and will complete any text. But I've noticed that both variants aren't exactly trained on NSFW texts. They are "intelligent" but seem to lack in knowledge. Also they seem to be very agreeable per default.
If anyone finds a well-made version of it, fine-tuned to teach it adult content, please tell me.