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.
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.
One popular 'nibi x naruto fanfic' could be 'The Bond of Nibi and Naruto'. In this fanfic, it might explore a unique relationship between Nibi, the two - tailed beast, and Naruto. It could show how they interact, perhaps Nibi helping Naruto in a different way compared to the other tailed beasts. It might also include some cool fight scenes where Naruto and Nibi work together against a common enemy.
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.
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.
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.
There are also nibi naruto fanfics that re - imagine the entire Naruto world in a different setting. For instance, a modern - day AU (alternate universe) where Naruto and his friends are high school students with ninja - like abilities. This kind of fanfic can be really interesting as it gives a fresh take on the well - known characters.
One popular trope is the 'Powerful Fem Nibi' trope. In many fanfics, Fem Nibi is depicted as having extraordinary powers that she uses to protect Naruto or help him in his journey. Another is the 'Fem Nibi as a Mentor' trope, where she takes on a guiding role for Naruto, teaching him about the world of the bijuu or some hidden ninja techniques.
One main theme is friendship. Naruto forms a bond with the Kyuubi and the Nibi, which is not common in the original series. This bond is based on mutual understanding and trust.