Well, it often involves imagining unique powers and circumstances. Maybe a special ritual or a rare encounter could trigger the transformation.
In some fanfictions, Naruto might start by trying to understand the Kyuubi's pain. He could use his own experiences of being an outcast in the village to empathize. As he shows this understanding, the Kyuubi begins to see him as different from the other humans who just fear it. They might start having conversations in Naruto's mindscape, gradually building a bond of mutual respect.
The Fem Kyuubi might be in trouble or weakened somehow. Naruto senses this and instead of taking advantage, he offers his help. He uses his own chakra to soothe her or protect her from whatever is threatening her. This act of kindness surprises the Fem Kyuubi. She has never experienced such a selfless act from a human before. This makes her lower her guard and start to trust Naruto. They then start to interact more often, with Naruto bringing her stories from the outside world and the Fem Kyuubi sharing her ancient knowledge with him, thus forming a friendship.
In fanfiction, Naruto might be influenced by Kyuubi in terms of enhanced physical abilities. The Kyuubi's chakra could make him stronger and faster, allowing him to perform more powerful jutsus.
A common scenario is when Naruto is on the verge of death. The Kyuubi realizes that if Naruto dies, it might also be in a bad situation. So, it decides to cooperate and in the process, they start to understand each other better and become friends. Another is when Naruto enters the Kyuubi's lair in his mindscape and instead of fighting, he tries to have a peaceful conversation, which leads to friendship.
At first, Naruto might see the Kyuubi as just a source of power. But as he starts to protect it, he realizes it's more of a partner. Their relationship evolves from a simple user - power source dynamic to a deep - seated friendship. He begins to understand the Kyuubi's emotions and past, which further cements their bond.
In this fanfiction, their relationship becomes more of a partnership. Instead of Naruto just using the Kyuubi's power, they work together as brothers. Naruto might start to understand the Kyuubi's feelings and motives better.
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.
In Naruto fanfiction, Kyuubi can help Naruto by providing him with extra power. For example, it can enhance Naruto's physical abilities like strength and speed during battles. This allows Naruto to face stronger opponents more easily.
Naruto might become more in tune with the Kyuubi's power. He could access more of its chakra easily and use it more effectively in battle. For Hinata, she may gain a new sense of boldness. The training could make her less shy and more assertive in combat situations.
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.