At first, it might be a relationship full of mistrust. Naruto has always seen the Kyuubi as a powerful and somewhat scary force inside him. But as they interact more, they could start to understand each other. For example, the Kyuubi in human form could show Naruto his past and the reasons for his anger, which would make Naruto see him in a new light.
At first, Naruto might be a bit scared or hesitant. But as the female Kyuubi shows her care and concern for him, he would start to trust her. They would gradually develop a mother - son type of relationship. The female Kyuubi could be strict at times to make Naruto a better shinobi, but also very loving.
At first, their relationship might be one of wariness. Naruto, with the Juubi's power, is a force to be reckoned with, and the Female Kyuubi is a powerful entity on her own. But as they interact more, they could start to respect each other. For example, when they face a powerful enemy together, they see how each other fights and starts to appreciate their skills.
In such fanfiction, their relationship often develops through mutual respect. Naruto no longer sees Kyuubi just as a source of power but as a friend. Kyuubi, in turn, starts to value Naruto's determination and kindness. They might have heart - to - heart conversations in Naruto's mindscape, sharing their past traumas and hopes for the future.
The relationship development can also be influenced by external factors. If the village starts to view Naruto's connection with the Kyuubi in a more positive light, it can ease the tension between them. This allows for more open communication and deeper training sessions. Eventually, they might reach a point where they are like comrades, fighting side by side not just physically but also in terms of their shared goals for the village and the ninja world.
Their relationship could start with Kurenai being cautious around Naruto as he is now the Kyuubi. But as she sees his struggle to control the power and his good intentions, she warms up to him. She might become a mentor - like figure, guiding him on how to use his new abilities for the greater good. And Naruto would respect her for her knowledge and kindness, leading to a strong bond of trust between them.
It could start with suspicion. The human might be afraid of Knockout as he is a Decepticon. But as they interact more, if Knockout shows some kindness or if the human helps him in some way, like fixing a minor damage, they might start to trust each other. For example, the human could offer Knockout a new paint job in a color he likes, which makes Knockout more friendly towards the human.
Often, the relationship development begins with Kyuubi being a menacing presence in Naruto's mind. However, as time passes, Naruto's determination and the fact that he is just a baby stir something in Kyuubi. Kyuubi might start to see Naruto as a potential ally or even a friend in the long run. Maybe there are times when Naruto is in distress, like when he is ill or being bullied in the orphanage, and Kyuubi unconsciously sends some of its warm chakra to comfort Naruto. This act of kindness, even if it's involuntary at first, starts to change the dynamic between them.
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.
Their relationship could develop gradually. At first, Naruto might be a bit wary of the Kyuubi daughter because of her connection to the powerful Kyuubi. But as he sees her good intentions and her growing love for him, he starts to open up. They could start off as friends, sharing stories about their experiences with the Kyuubi's power. Then, over time, their friendship could turn into something more romantic as they face challenges together and rely on each other more.
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.