What are the main themes in 'naruto kyuubi nibi fanfic'?

Sure. One great 'naruto kyuubi nibi fanfic' is 'The Bond of Nine and Two' which explores the unique relationship between Naruto and the Nine - Tailed Fox and the Two - Tailed Cat in an alternate universe. It has really interesting character developments.

One common theme is power. How Naruto harnesses the Kyuubi's power and grows stronger. Another theme is friendship, as the relationship between Naruto and the Kyuubi can be seen as an unusual form of friendship. And there's also the theme of redemption, like when the Kyuubi tries to make up for its past misdeeds.

Another common theme is growth. Naruto is constantly growing as a ninja, and in 'nibi x naruto fanfic', Nibi can play a role in that growth. Whether it's Naruto learning new jutsus from Nibi or becoming more mature in his understanding of the ninja world because of his relationship with Nibi, growth is often a central part of these stories.

A possible plot is that the Fem Nibi and Fem Kyuubi are reincarnated in human forms and they meet Naruto by chance. They initially don't remember their past as tailed beasts but feel a strange connection to Naruto. As they start to regain their memories, they discover that they have a shared destiny with Naruto to save the ninja world from a dark prophecy. Along the way, they have to overcome their own differences and learn to work together, all while Naruto is trying to figure out his feelings for these two unique characters.

Another theme is identity. Naruto has to figure out who he is now that he is the Kyuubi incarnate. Is he still the same Naruto? Or has this new power changed him? And how do others see him? For instance, some people might be afraid of him now that he has the power of the Kyuubi, while his friends try to support him through this change.

Power is a major theme. The Kyuubi gives Naruto immense power, and in the DxD world which is also full of powerful beings, the exploration of how this power is used and controlled is often central.

When writing the Fem Nibi and Fem Kyuubi characters in a Naruto fanfic, start with their core identities. The Fem Nibi could be portrayed as more of an enigma, with a calm exterior but a complex inner world. The Fem Kyuubi, being a symbol of great power, can be written as confident yet also a bit lonely. In relation to Naruto, show how they are drawn to his unwavering spirit. For example, the Fem Nibi might be intrigued by Naruto's ability to see the good in everyone, and the Fem Kyuubi might admire his tenacity. Their character arcs should be about not only their relationship with Naruto but also their own self - discovery within the context of the ninja world.

Obviously, Nibi is a main character. And Naruto is often there too. They usually have a strong connection in these fanfics.

One common theme could be cooperation. Given Naruto's nature of befriending others and Yugito's connection with Nibi, they might come together to achieve a common goal. Another theme could be the exploration of the tailed - beast's power in relation to the characters. For example, how Nibi's power affects Yugito and Naruto's interactions with them.

I'm not sure specifically what that particular 'naruto nibi lemon fanfic' is about as there could be many different interpretations. It might be a fan - created story related to Naruto and the Nibi (Two - Tailed Beast) with some sort of unique plot or character development.