Their relationship could start as a cautious alliance. Rimuru, being a slime who has built his own community, would be wary of Luminous at first. But as they face challenges together, they start to respect and trust each other more.
One great fem Naruto x fem Kyuubi fanfiction could be one that focuses on their unique bond. It might explore how they interact in a world where Naruto is female and the Kyuubi also takes a female form. For example, it could show them teaming up against common enemies and how their combined powers are different from the original story.
One possible plot could be that the female werewolf is an outcast in her own world. Naruto, with his kind heart, befriends her. Meanwhile, the fem Kyuubi has a connection to Naruto due to the Kyuubi within him. They all come together when a common enemy threatens the Hidden Leaf. The werewolf could use her unique abilities, like enhanced strength and speed, to help Naruto in battles, while the fem Kyuubi might offer her own brand of power, perhaps related to chakra manipulation. As they fight side by side, a deep bond forms between Naruto and the two female characters.
A prevalent theme is also acceptance. Naruto has to accept these two unique entities into his life, and they in turn have to accept him and each other. It's about how different beings from different backgrounds can come together. And there's often the theme of adventure as they go on various quests or face threats in the Naruto world.
The relationship between Naruto and the fem werewolf could start as a friendship based on mutual respect for each other's abilities. Naruto would be intrigued by her werewolf powers. With the fem Kyuubi, Naruto already has a complex relationship due to the Kyuubi inside him. As the story progresses, the fem werewolf might develop romantic feelings for Naruto, which could make the fem Kyuubi a bit envious at first. But eventually, they could all form a strong, platonic bond where they support each other in different ways, like in battles or in dealing with the politics of the Hidden Leaf.
A lot of 'guy x guy fanfic' are based on existing fictional universes. Take a popular fantasy series, for instance. Some fanfics create relationships between two male characters that the original story didn't explore, adding new layers of drama and romance to the world.
The plot should be engaging. It could involve a new threat to the ninja world that only fem Naruto and fem Kyuubi can stop together. This could lead to a lot of action - packed scenes and also some really touching moments between them as they rely on each other. A good fanfiction might also explore their backstories in this new context, like how fem Naruto came to terms with having the Kyuubi inside her as a female.
Well, I'm not sure if it's still around, but 'The Trio's Adventure' was a great 'naruto x fem wolf x fem kyuubi fanfiction'. It focused on their journey across different lands in the Naruto world. There were parts where the fem wolf's instincts and the fem kyuubi's power complemented Naruto's skills, making for a very engaging read.
Rimuru is very strong in the manga. He starts off with some unique abilities and keeps getting stronger through different events and encounters. His strength is not just physical but also in his strategic thinking and leadership skills.