Well, in fanfiction, the world is quite malleable. Writers might make Naruto Kushina's cousin to explore different family dynamics and how it could change the story. But remember, this is a departure from the canon where they have a mother - son relationship. Maybe the fanfiction author wants to play with the idea of different blood relations and how they would affect Naruto's growth and the overall story arc.
Yes, there are likely some fanfics out there with this concept. The Naruto and Ichigo universes are both very popular, and fans often like to create crossover stories. You can try looking on fanfic websites like FanFiction.net or Archive of Our Own to find such a story.
One major problem is that it may violate ethical and moral norms. Incest - like themes are generally not acceptable in mainstream values. Another issue is that it can distort the original intention of the Naruto series, which is mainly about friendship, growth, and ninja values.
If Naruto is Kushina's cousin in fanfiction, it would completely reshape the family - related storylines. For instance, Naruto's connection to the Uzumaki clan through Kushina would be more of a cousin - like bond. This could mean different training opportunities, as the family might treat him differently. Also, his relationship with Minato would need to be re - imagined, since Minato would not be his father in this scenario. There could be new power dynamics at play too, as the inheritance of certain abilities might be different compared to the original story.
Avoid fanfictions that use the 'cousin' relationship in an improper or unethical way, especially in the context of 'lemon' content. Also, stay away from those that have a lot of plot holes or inconsistent storytelling. A good Naruto fanfiction should have a coherent plot that respects the Naruto universe's basic rules, like the power system and the world - building.
One possible crossover could be in the area of combat techniques. Naruto's Rasengan could be combined with Rias's demonic powers in some way. Another could be in terms of leadership. Naruto, as a leader in his ninja village, and Rias, as a high - ranking devil, could share their leadership experiences. There might also be a crossover in terms of friendship. Naruto's friends like Sasuke and Sakura could interact with Rias's peerage members.
In such a fanfic, we might see Naruto and Ichigo initially not knowing they are cousins. When they find out, it could lead to a whole new dynamic. They could compare their experiences of protecting their worlds. Naruto defends Konoha from various threats, while Ichigo safeguards Karakura Town. Their families might also get involved, and there could be some interesting interactions between the ninja and Shinigami families. Plus, they could combine their powers in unexpected ways to fight common enemies that threaten both their universes.
Well, perhaps the plot could center around Naruto's cousin being sent to Rias' world on a mission of sorts. Maybe there's a disturbance in the balance of power in Rias' realm that has an impact on Naruto's world too. The cousin, with his knowledge of Naruto's adventures, uses some of those learned tactics in the new world. He and Rias could form an unlikely alliance and as they get to know each other better, they start to share their respective cultures and powers, leading to a stronger bond between them and their teams.
Naruto's cousin might be initially cautious around Rias. But as he sees her leadership skills and determination, he would start to respect her. He could offer his ninja skills to help her in battles, like using his stealth to gather information. And Rias would be curious about his different power set and would try to learn more about his world.
One possible good Naruto x Cousin Lemon fanfic could be those that focus on their unique bond. Maybe a fanfic where they team up for a mission and through that, their relationship deepens. It could explore how they support each other during tough times in the mission, like when facing a powerful enemy.