There's also 'Kyuubi's Daughter and Naruto'. This fanfic focuses on the interactions between Naruto and the female Kyuubi character. It has some really good action scenes intertwined with their relationship building. The author does a great job of portraying the emotions and the power dynamics between them. However, the pacing can be a bit off in some parts, but overall it's an enjoyable read.
A good 'Naruto 18 x Female Kyuubi' fanfic should have a well - developed relationship. For example, it could show how they understand each other's powers and how they complement each other. The characters need to be in - character, so Naruto should still have his determination and the female Kyuubi should have her own personality traits related to her fox nature. Also, a great plot that isn't just centered around their relationship but also has some adventure or a greater threat to the Naruto world.
At first, it might be a relationship of mutual suspicion. Naruto is used to seeing Kyuubi as a source of power but also a potential threat. As the story progresses, they start to understand each other more. For example, through shared experiences in battles.
One common theme is power. Since Kyuubi is a source of great power, many fanfics explore how Naruto uses or struggles with this power. Another theme is friendship. Despite their initial enmity, they can become friends in the fanfics.
Typically, in such a fanfic, Naruto might be portrayed with more effeminate traits while interacting with the Kyuubi. This could include changes in his behavior, speech patterns, or even his appearance.
One possible aspect could be a story about Naruto befriending the female Kyuubi. In many fanfics, they might start with Naruto trying to understand the Kyuubi's female form better. Maybe he discovers that she has a different personality compared to what he expected from the regular Kyuubi. For example, she could be more gentle and protective in a way that surprises Naruto.
Typically, it starts with Naruto being surprised or even a bit scared of the Female Kyuubi at first. But as he gets to know her better, he realizes she has her own motives and feelings. Then they start to communicate more, which leads to a gradual trust - building process.
Their relationship could also grow through mutual respect. The female Kyuubi respects Naruto's strength and determination, and Naruto respects her power and the fact that she has been trapped for so long. This respect can lead to a friendship or even something more as they rely on each other more and more in difficult situations.
Yes, there are many non - adult 'Naruto x Kyuubi' fanfics out there. You can start by looking on popular fanfic websites like Fanfiction.net or Archive of Our Own. Just search for 'Naruto x Kyuubi' and filter out the inappropriate ones.
The theme of redemption can also be common. The fem Kyuubi may have a past that she is trying to overcome, and Naruto helps her in that journey. Also, the exploration of the unknown is a theme. The fem Kyuubi might have secrets about the ninja world that Naruto discovers as they interact more closely.