Yes, there are. You can look for fanfics that focus on the relationship between the characters outside of a sexual context. For example, some may explore the deepening of friendships among the group as they face more challenges together. Another type could be about the characters' personal growth and how they overcome their inner demons.
Rather than seeking sex - related fanfics, it would be better to explore the official Outerbanks content. There are many exciting storylines about friendship, mystery - solving, and the search for treasure in the original show that are far more worthy of our attention.
The idea of sex cartoons involving horses raises serious ethical and moral issues. It goes against societal norms and values, and can have negative impacts on mental health and the perception of appropriate behavior.
Naruto sex Kushina comics are not something to be explored as they go against the intended themes and values of the Naruto franchise. They are likely unethical and might even be illegal in some contexts.
Overall, the anime of 'Mikakunin de Shinkoukei' is a faithful representation of the manga. Some changes might be made for better animation or pacing, but they don't significantly deviate from the core of the manga.