How would Naruto and Sasuke's relationship change if they travel to the past in fanfiction?

Their relationship might become stronger. Going through time travel together, facing new and old challenges, would force them to rely on each other more. They would see different sides of each other and gain a deeper understanding.

If Sasuke's sister was in the picture, Naruto and Sasuke's relationship might soften more quickly. Naruto would see another side of Sasuke through his sister. He might also feel more of a connection to Sasuke's family. Sasuke, on the other hand, would see Naruto's genuine care for his sister, which could make him trust Naruto more.

If Sasuke kidnapped Naruto, it could initially seem like a huge betrayal. However, Naruto is known for his ability to forgive. He might see this as Sasuke still caring about him in his own, twisted way. This could make their relationship more complex, with Naruto constantly trying to reach out to Sasuke and Sasuke struggling with his own emotions and reasons for the kidnapping.

It would likely become more cooperative. They'd have to communicate more often to take care of the pregnancy - related matters.

Naruto's relationship with Sasuke would likely have a new layer of respect. Naruto, having been trained by Itachi, would understand the Uchiha clan more, which is a big part of Sasuke's identity. This could make Sasuke see Naruto in a different light too. Instead of just seeing him as a rival, he might start to view Naruto as someone who is also connected to his family in a way. They could start to communicate better, with Naruto being able to speak more knowledgeably about Sasuke's family and their history.

This change could bring them closer in a strange way. Naruto, with Sasuke's eye, might start to see the world more like Sasuke does. He could understand the reasons behind Sasuke's actions better. Sasuke, on the other hand, might be a bit shocked at first but then realize that Naruto is now even more intertwined with his being. This could lead to them having more in - depth conversations and a rebuilding of their trust.

Well, their relationship would likely become more confident. Since they are already married, Hinata wouldn't be as shy around Naruto as she was in the original timeline. Naruto would also be more aware of Hinata's feelings and his own for her. He would probably be more protective of her right from the start.

Well, it would be quite different. If Sasuke was the village - bound one and Naruto the outcast, Sasuke would probably be more frustrated with Naruto. He'd see Naruto's actions as irresponsible and dangerous. Naruto might view Sasuke as naive for still believing in the village.

The relationship would be very different. Instead of Naruto chasing after Sasuke to bring him back, it might be Sasuke trying to reach out to Naruto. Sasuke would be the more empathetic one, constantly trying to break through Naruto's cold exterior.

On the other hand, it could cause some strain. Maybe Sasuke would start to feel trapped in this eternal existence with Naruto and long for some solitude. Or Naruto might feel that Sasuke is becoming too distant because of their immortality. However, in the end, they would likely work through these issues because of their deep bond.