Tell me /ic/ , this is something that has been kind of "worrying" me for quite some time.
How risky is to create hentai, adult content from Nintendo's characters?
We all know what happens with fanmade videogames or pirating their games but

>It all started some years ago, in tumblr there were these fanatics who reported every single fan art from Zelda, Samus or Peach. There was even a cease and desist letter posted everywhere.
>I read many times about Nintendo taken down twitter accounts just for that
>But at the same time I keep seeing lots of hentai pictures on pixiv, on twitter, japanese artists themselves, doujins and so on.
>I understand it would be illegal to do it if you just rip the 3D models, reuse their assets, textures or any kind of material owned by them, but just a drawing?

How true is this? Its just a roulette thing? Are they really pissed off fans who dont want to see their favourite characters sexualized? Is there any official communicate from Nintendo? How legal would it be?