It depends on what you mean by 'hurt'. If you're referring to the story or characters, it might not necessarily hurt it. But if it's about the popularity or reception, that could vary depending on the changes made.
No, it is not appropriate. 'Steven Universe' is a family - friendly show aimed at a wide audience including children. Writing sex fanfiction related to it goes against the intended spirit of the show and can also be considered inappropriate and unethical in the context of fan - created content.
Drawing backgrounds for Steven Universe comics can be challenging. One tip is to break it down into steps - outline the basic shapes, add shading for depth, and incorporate鏍囧織鎬 elements from the series. Another thing to keep in mind is to maintain consistency with the overall aesthetic of the comic universe.
In the context of the show's universe, it's a bit of a strange concept. Since fanfiction exists in our real - world fandom and not in the show's world directly. But if we were to imagine a meta - situation where he could access it, I suppose it could be possible. However, it would be a very surreal situation for him.
He would probably have a very mixed reaction. On one hand, seeing how fans view his world and his story could be really cool. He might enjoy seeing different versions of himself and his friends. However, if there are inaccuracies or things that go against his values in the fanfiction, he could also be a bit put off. It really depends on the nature of the fanfiction he's reading.