They can act as a plot device. For instance, if Naruto releases pheromones that make others more aggressive, it can start a conflict among his friends or within the village.
One possible fanfiction could be about how Naruto's released pheromones unknowingly affect his friends and comrades. For example, it might make them more protective of him or more in tune with his emotions. Another could be that the pheromones attract a particular enemy who is sensitive to such things and it leads to a unique battle scenario.
Some 'Naruto Pheromones' fanfictions could explore the romantic aspect. Picture Naruto unknowingly emitting pheromones that attract a certain character. This could lead to a whole new love story within the Naruto setting, with all the usual challenges of ninja life and the added complication of these pheromone - related feelings.
By adding pheromones, it can also expand the social and cultural aspects of the Naruto world. For example, there could be rules or taboos around using pheromones in certain situations. This would create more depth in the world - building. Also, in terms of relationships, it can add new layers. Characters might be attracted or repelled by pheromones, which can lead to different group dynamics and storylines.
It could be about Naruto finally letting go of Kurama in a very emotional way. Maybe it shows his journey of coming to terms with the loss, and how it changes his relationship with the other villagers.
A frequent theme is the relationship aspect. The pheromones could play a role in his romantic relationships. For example, they might make him more alluring to his love interests. Also, in some fanfictions, the pheromones can be a source of conflict, like if villains try to use them against him or if his use of them causes misunderstandings among his friends and allies. This adds a layer of drama to the story.
In addition to the well - known characters, there could be new characters introduced in the fanfiction. Maybe there are some ancient ninja clans who have knowledge about the 'fem Kyuubi' and they send their representatives to interact with Naruto. These new characters could bring in new plot twists and conflicts. For example, they might try to manipulate Naruto to use the 'fem Kyuubi' for their own purposes, which would put Naruto in a difficult situation where he has to decide who to trust.
Obviously, Naruto is the main character as he is the one releasing the Kyuubi. Sasuke could also be involved, perhaps as an ally or an antagonist depending on the plot of the fanfiction. Sakura might be there too, trying to support Naruto in controlling the Kyuubi's power or dealing with the aftermath.
One interesting scenario could be Naruto learning to control the Kyuubi's power in a unique way that wasn't shown in the original series. For example, he might use it to create new jutsu that combine his own skills with the Kyuubi's raw power.
Well, in fanfiction when Naruto releases his power, it could result in some wild and creative scenarios. He could end up using his power to explore new dimensions or time - travel. His power might also attract the attention of ancient and powerful entities. Imagine Naruto using his power to communicate with the spirits of past Hokages in a more profound way, getting advice and unlocking even greater powers from their wisdom.