One possible storyline could be a crossover where Naruto's world is threatened by a villain from the Sailor Moon universe. Luna could play a key role in guiding Naruto and his friends, perhaps using her knowledge of magic and the Sailor Guardians. Another idea is that Naruto somehow gains Sailor Moon - like powers and has to learn how to use them in his own world.
If we think about it, Naruto's shadow clones could be used in interesting ways in the Sailor Moon universe. He could send his clones to gather information about the villains while the Sailor Guardians are preparing their attacks. Luna's ability to communicate with Sailor Moon could be extended to also communicate with Naruto's clones. Also, Sailor Moon's transformation powers might be able to affect Naruto in a way that gives him a temporary boost in speed or strength similar to when she transforms.
In fanfiction, the idea of Luna and Artemis having a baby can be really interesting. It could bring a whole new dynamic to the Sailor Moon universe. Maybe the baby would inherit their powers and be a key figure in protecting the world from new threats. It could also have a unique appearance, perhaps with a mix of Luna's black and Artemis' white fur.
The character interactions are also quite unique. Imagine Naruto's brash and determined personality meeting Sailor Moon's kind - hearted and somewhat naive nature. It creates a whole new dynamic. Fanfiction writers can explore different relationships between the characters from both series, like friendship, rivalry, or even romance. This can lead to some very interesting storylines that you wouldn't find in the original series.
In Sailor Moon fanfiction, their baby could be a symbol of hope. Since Luna and Artemis are so important in guiding the Sailor Guardians, their baby could have an even greater role. It could have the ability to communicate with all the magical beings in the Sailor Moon world, not just cats. It might also have a special bond with Sailor Moon herself, acting as her sidekick in battles and helping her make important decisions.
Yes, there might be such fanfictions out there. Fanfiction is a vast world where all kinds of crossovers and unique concepts are explored. However, finding a specific 'Naruto father of Sailor Moon' one could be a bit of a challenge. You'd probably have to search on major fanfiction platforms like FanFiction.net or Archive of Our Own and use relevant keywords to narrow down the search.
Some fanfictions focus on their friendship in a more in - depth way. Maybe there's a story where Sailor Mars is feeling really down and Sailor Moon is the only one who can cheer her up. It shows how their bond is not just about fighting together but also about being there for each other through the tough times, like when Sailor Mars misses her family or is having a hard time with her studies.
One popular 'naruto x sailor moon fanfiction' is 'The Moonlit Shinobi'. It combines the ninja world of Naruto with the magical elements of Sailor Moon in a really interesting way. The characters are well - blended, and the plot keeps you hooked.
Maybe a corrupted version of one of the Sailor Scouts. She could be jealous of Naruto's attention towards the other Scouts in the harem. So, she makes a deal with a dark force from Naruto's world, like a powerful Orochimaru - like character. This combined power of dark jutsu and a twisted Sailor power would create a very interesting and complex main antagonist for this crossover fanfiction.
One idea could be that Naruto somehow gets transported to the Sailor Moon universe. In this new world, the Sailor Scouts initially see him as an oddity but gradually come to respect his ninja skills. As for the harem aspect, Naruto's kind heart and unique abilities attract the Scouts, leading to a series of adventures where they all have to work together to protect both their worlds from a common threat. Maybe a new villain emerges who combines the dark jutsu of Naruto's world and the dark magic from the Sailor Moon world.