Sasuke would probably be very confused at first. He has spent so much time hating Itachi for what he did to the Uchiha clan. Seeing Naruto befriend Itachi would make him question his own long - held beliefs. He might initially be angry with Naruto for seemingly siding with his enemy.
Naruto might initially be shocked and angry. He has a strong sense of justice and being kidnapped goes against everything he stands for. He would likely try to fight back immediately, using his basic ninja skills and his determination. For example, he could try to use his Shadow Clone Jutsu to create distractions and escape.
One possibility for a Naruto and Itachi best friends fanfic could be that Itachi, instead of massacring his clan, finds a way to resolve the conflict with the help of Naruto. Naruto, with his unwavering belief in friendship, could convince the Uchiha clan and the village elders to come to a peaceful agreement. Itachi, seeing Naruto's positive influence, becomes his close friend. They could then train together, with Itachi teaching Naruto some of the more advanced Uchiha jutsu, and Naruto in turn sharing his own unique ninja way with Itachi.
One great fanfiction could be 'The Unlikely Bond'. In this story, Naruto discovers a side of Itachi that no one else knew. It shows how their friendship could have developed despite the initial differences. Naruto's optimistic nature starts to break through Itachi's cold exterior.
Itachi would probably be very calm and composed. He might see Sarada as a symbol of the new generation of ninjas in the village. He could be gentle with her, perhaps sensing her potential and her desire to grow as a ninja.
Their friendship could also lead to a different perspective on the Uchiha clan's situation. Itachi's actions were complex and his friendship with Naruto could have made Naruto more involved in the Uchiha clan's affairs. This might have led to a different solution to the conflict between the Uchiha clan and Konoha, preventing the massacre. In turn, this would have a huge impact on the political situation in the ninja world.
Naruto would probably be very confused at first. He's always seen the Akatsuki as the enemy, so being taken there by Fem Itachi would be quite a shock. He might be on guard and constantly looking for a way to escape.
Well, in 'possessive Itachi x Naruto fanfiction', the story could delve into how Naruto reacts to Itachi's possessiveness. Does he accept it? Resist it? Itachi's possessive behavior could also cause conflicts with other characters who have their own relationships with Naruto. This kind of fanfiction often offers a fresh take on the original characters' personalities and relationships.
I think a 'Genius Naruto x Itachi' fanfic can be really interesting. It could explore their different powers and how they might interact in new and unexpected ways. Maybe Naruto's unwavering determination and Itachi's complex motives could lead to some great character development and plot twists.
One great 'Naruto x Itachi fanfic' is 'The Unlikely Bond'. It delves into a scenario where Naruto and Itachi have to team up for a mission that could change the fate of the ninja world. The story is really engaging as it shows their different perspectives and how they gradually come to understand and respect each other.