One possible plot could be that the Demon Wolf is an outcast in the Naruto world and the Fem Kyu is the only one who shows him kindness. They then form an unlikely alliance and go on adventures together, facing various threats in the ninja world.
You can try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own. They have a vast collection of Naruto - related fanfictions and there's a good chance you'll find some stories involving a Demon Wolf and a Fem Kyu.
In a Naruto x fem wolf goddess x fem kyuubi fanfiction, the fem wolf goddess could represent a more spiritual or wild aspect. She might introduce Naruto to a different side of the ninja world, one that is more in tune with the natural order. The fem kyuubi, on the other hand, could have a more fiery and powerful personality. The story could revolve around Naruto trying to balance the influence of both characters while also dealing with his own growth as a ninja.
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.
One possible good 'naruto demonwolfx fem kyu fanfiction' story could be one where the demonwolf character forms an unexpected alliance with the fem kyu character during a mission in the Naruto universe. They start off distrusting each other but gradually learn to rely on one another's skills.
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.
Well, one key element could be the unique relationship dynamic. Since Naruto is in a 'wolf' form, it might change the way he interacts with the Fem Kyuubi. For example, in many fanfictions, there could be a more primal connection. Another element might be the exploration of their combined powers. The Fem Kyuubi's chakra and Naruto's new wolf - like abilities could lead to interesting storylines, like fighting against new and powerful enemies. Also, the character development of both Naruto and the Fem Kyuubi in this new context is often a major part. How does Naruto adapt to his wolf form while still being himself? And how does the Fem Kyuubi react to this different Naruto?
Yes, one popular trope is the 'unlikely allies' trope. Naruto in his wolf form and the Fem Kyuubi, who are different in nature, come together to face a common threat. Another is the 'forbidden love' trope. Given their different states and the complex relationship between Naruto and the Kyuubi in the original series, a love story between them in this new form can be a popular plot device. Also, the 'power - couple' trope is often used. With their combined abilities, they are seen as a very strong duo in the fanfiction world, taking on challenges that no one else can.
At first, there might be a misunderstanding between them. The fem demon foxes might mistake Naruto for someone who wants to harm them. But Naruto, through his actions of kindness and protection, clears up the misunderstanding. This makes the fem demon foxes feel guilty for misjudging him and they start to make amends, which is the start of a beautiful relationship.
One common theme is power. Since Naruto is a demon and Kyuubi is a powerful being as well, the stories often revolve around how they use and control their powers. Another theme is partnership, showing how they work together.