The original story of The Incredibles centers around a family of superheroes who try to balance their normal lives with their superpowers and face various challenges along the way.
" The Incredibles 2 " was a follow-up film that followed the story of the first " The Incredibles ". It told the story of the fierce battle between the righteous Superman and the evil superhero. At the same time, there was a series of new story lines. In the second movie, Justice and his allies had to fight against the evil superpowers to save the Earth. In addition, there was also the origin story of the Superman family and how Superman and his new allies dealt with the threat from the evil forces. The whole story was very rich.
No. Fanfiction involving sexual content related to family - friendly franchises like 'The Incredibles' is not appropriate. Such content goes against the family - oriented nature of the original work and can be considered unethical and inappropriate for general audiences.
One alternative could be creating family - friendly fanfic that focuses on the adventures of the Incredibles family. For example, you could write about a new mission they go on to save the city from a new supervillain.