Writers may develop their relationship through character growth. The Fem Kyuubi could change Naruto's view of the world and make him more empathetic towards the tailed - beasts. In return, Naruto's positive attitude could influence the Fem Kyuubi to be more open and less hostile. They could also have moments of vulnerability. For instance, the Fem Kyuubi might show her fear of being rejected by the ninja world, and Naruto comforts her. These moments of sharing and caring are crucial in developing a strong relationship in the fanfiction.
Some writers develop their relationship by exploring their mental connection. Since Naruto has a connection to the Kyuubi from the start, when it's a fem version, this connection can be deepened and explored in new ways. They might be able to communicate telepathically and share emotions. This leads to a more intimate bond. Also, the Fem Kyuubi might teach Naruto new jutsu or skills, which is a form of bonding as Naruto becomes more powerful with her help and they grow closer through the learning process.
At first, their relationship might be based on mutual need. Naruto, being the one who wants to right the wrong of her banishment, and the Fem Kyuubi, who may need someone to help her. As they spend more time together, they start to understand each other better. Naruto sees the Fem Kyuubi not just as a powerful being but as a sentient individual with feelings. The Fem Kyuubi, in turn, realizes that Naruto is different from the others who feared or hated her. This understanding gradually turns into a deeper emotional bond, which could develop into love over time.
At first, the relationship might be based on mutual benefit. The fem Kyuubi might see Naruto's mercenary skills as useful for her own goals, and Naruto might see her power as an asset. As time goes on, they could develop a deeper emotional bond. They might start to understand each other's pasts and traumas, which would bring them closer together.
At first, their relationship might be one of mistrust. Naruto is wary of the Kyuubi as he's always been taught to fear it. But the female Kyuubi, being different in this fanfiction, tries to reach out to him. Slowly, they start to understand each other. Naruto sees that she's not like the stories he's heard.
In many fanfictions, Fem Naruto might show kindness towards the Kyuubi. This kindness could be something the Kyuubi has never experienced before. For example, instead of just seeing it as a source of power, Fem Naruto might try to understand the Kyuubi's past and pain. This could lead to the Kyuubi gradually opening up to her and them developing a deeper bond.
Often, they portray it as a complex relationship. Since Naruto has a long - standing connection with the Kyuubi's power, in fanfiction with a fem Kyuubi, there could be a sense of mutual respect. Naruto might respect her power and she might respect his tenacity.
The fem Kyuubi could be initially attracted to Naruto's struggle with the Kyuubi inside him. She decides to help him. As Naruto's mental state improves due to her efforts, they could develop a romantic relationship. For example, she could teach him how to better control the Kyuubi's chakra, and in the process, they fall in love.
The development of their relationship would be full of twists and turns. Naruto is a hero, and the fem Kyuubi is a powerful entity. In the female world, social dynamics might be different. Naruto could initially be confused by the fem Kyuubi's presence and her femininity. But as he gets to know her better, he'll realize that she's not so different from the Kyuubi he knew in some ways. They could start to trust each other gradually. For example, they might team up to face challenges in the female world together, which would strengthen their bond over time.
Well, Naruto has always been alone in a way, and a Fem Kyuubi banished by Minato would also be alone. Their relationship could start from a place of mutual loneliness. Naruto might offer her protection, and in return, she could offer him her power and wisdom. They could bond over their shared experiences of being outcasts in a sense. The Fem Kyuubi could teach Naruto more about his own powers, since she has a connection to the chakra within him, and this could lead to a strong and unique relationship.
Their relationship might start with Naruto being curious about the fem Kyuubi. He's used to the regular Kyuubi, but this new, female form is different. As he gets to know her, he discovers she has a softer side. And she, in turn, starts to see Naruto not as just a powerful being but as someone with a kind heart.
At first, Naruto might be scared or wary of Fem Kyuubi. But as time passes, he starts to see her as a protector. She teaches him about his own power and the secrets of the chakra. Their relationship becomes more of a student - teacher one. Then gradually, it turns into a deep bond like a mother - son relationship. Fem Kyuubi starts to care for Naruto not just as a vessel but as a person she has a connection with.