Does writing morally bad things in fanfiction make you morally bad?

I am in the middle of thinking about writing a new series of fanfiction. But it involves including alot of immoral and unethical things in the story. Like partners cheating, drunk sex, non con, etc. It is going to be completely different than anything I've written before. Like fluff or regular smut. But the thought of writing this had me thinking. Does writing about unethical/immoral things make the person who is writting it ethically or morally bad aswell? I know that there is two sides of this argument like one side could argue that writing about this kind of is a healthy way to explore one's thoughts/character. But the other side could argue "where does it end?" Is there a certain line that shouldn't be crossed or topics that shouldn't be written about?

I've mostly gotten idea on where my stance on this is. But I am open to hearing more viewpoints on this!