In some fanfictions, Naruto might obtain the Kyuubi's bloodline through a special ritual. This could be a ceremony performed by a powerful shinobi or a sage who has the knowledge to transfer the essence of the Kyuubi's power into Naruto's genetic makeup, thus giving him the bloodline.
In some fanfictions, Naruto might obtain the bloodline through a magical or spiritual connection with the Fem Kyuubi. Maybe during a moment of extreme danger or a special ritual where the power of the Fem Kyuubi is transferred to him, allowing him to gain a new bloodline.
In the fanfiction, Naruto could gain the power of enhanced perception. The Kyuubi's bloodline might give him the ability to sense things from a much greater distance, whether it's the presence of other ninja, hidden traps, or even changes in the environment. Additionally, he might have better control over his own emotions and be able to resist mind - control techniques more effectively. This is because the Kyuubi's bloodline could strengthen his mental fortitude, making it harder for enemies to manipulate his thoughts or feelings.
Well, in some fanfictions, Naruto might obtain the sword through a special bond or trial. Maybe Kyuubi decides that Naruto needs this weapon to face a new and powerful enemy. So it could be that Naruto proves his worth in some way, like showing great courage or a new level of control over his chakra, and as a result, Kyuubi gives him the sword.
One potential power could be the ability to manipulate fire in a unique way. The Kyuubi has a lot of raw power and in a fem form, it might manifest as a different type of elemental control. Naruto could use this newfound power to create more powerful fire - based jutsus or even combine it with his existing techniques in a more effective manner. Another power might be enhanced speed. The Fem Kyuubi's bloodline could give Naruto the ability to move at blinding speeds, making him a more formidable opponent in combat.
In some fan theories, it could be due to a unique chakra interaction. Maybe the Kyuubi's powerful chakra somehow mutates Naruto's own ocular abilities and triggers the emergence of the Sharingan. But this is just a wild fanfiction idea.
In some fanfiction concepts, the chakra of the Kyuubi is not just pure fox chakra but also contains remnants of the Sage of Six Paths' power. Since the Rinnegan is related to the Sage of Six Paths, when Naruto reaches a certain level of power and harmony with the Kyuubi, the dormant Rinnegan - like power within the Kyuubi's chakra awakens in Naruto. This could be a result of Naruto's strong will and his journey to master the Kyuubi's power which eventually leads to him obtaining the Rinnegan.
Well, if Naruto got a bloodline from Kyuubi in fanfiction, it could make him even more powerful. He might have new abilities like enhanced speed or strength related to the Kyuubi's nature. His appearance could also change, perhaps with some fox - like features. This would definitely change how he interacts with his friends and enemies. For example, Sasuke might view him as an even greater threat or rival, and his friends might be in awe of his new powers.
In some fanfiction concepts, it might be due to a unique chakra interaction. Maybe the Kyuubi's powerful and ancient chakra somehow triggers a latent ability within Naruto that results in the manifestation of the Rinnegan. It could also be part of some kind of prophecy or destiny within the fan - created world of the story.
In fanfiction, the 'godlike naruto kyuubi bloodline' often makes Naruto more confident. Since he has such powerful abilities, he doesn't have to doubt himself as much. For example, he might be more assertive in battles and in his interactions with others.
Naruto could gain the ability to manipulate fire in a unique way. Since the Kyuubi is associated with a certain element - like energy, it could translate into Naruto having a new form of elemental jutsu. He might also be able to heal faster. Kyuubi's chakra has shown to have regenerative properties, and with a bloodline, this could be enhanced in Naruto, allowing him to recover from injuries more quickly.