Another plot could be that in a different dimension or alternate reality, older Naruto meets young Sasuke. They have no prior knowledge of each other, but Naruto senses something special in Sasuke. They start training together, and Naruto helps Sasuke unlock new powers. As they grow closer, they face threats to this new world they are in, and their bond becomes the key to saving it.
One possible plotline could be that older Naruto, having achieved great things in the village, takes young Sasuke under his wing. He tries to teach Sasuke the values he has learned over the years, like the importance of friendship and protecting the village. Sasuke, being young and headstrong, might be initially resistant but gradually comes to understand Naruto's point of view.
A fanfiction could also be set in a scenario where older Sasuke and young Naruto are accidentally sent to a different dimension. In this strange new world, they have to rely on each other to survive. Sasuke's calm and calculated nature combined with Naruto's boundless energy and optimism would make for an interesting dynamic. They'd have to find a way to get back home while also dealing with the unique challenges of this new dimension.
One possible plotline could be Naruto constantly making inappropriate comments or gestures towards Sasuke, which would create a lot of tension between them. Another could be Naruto having some sort of strange obsession with Sasuke's abilities or appearance in a perverted way. Maybe he tries to follow Sasuke around all the time just to be near him for the wrong reasons.
One possible plotline could be that Naruto, being older, has to take on the role of mentoring Kakashi in some new form of ninja art or strategy. Since he has more experience in this fanfiction, he passes on his knowledge.
One possible plotline could be that Naruto, having a fundamental difference in ideology with Sasuke, decides to take a stand. Maybe Sasuke is on a path that Naruto believes will destroy the village or their friends. So Naruto uses his newfound powers, perhaps a combination of Sage Mode and Nine - Tails chakra, to directly confront Sasuke. Naruto could try to break Sasuke's resolve through sheer force and the power of their friendship memories.
In some fanfictions, the plot could start with Naruto and Fem Sasuke having a deep emotional connection that leads to a physical relationship resulting in pregnancy. Then, they might have to deal with the social implications within their respective clans. For example, the Uchiha clan might have certain expectations or reactions to Sasuke being pregnant outside of marriage. Naruto, on the other hand, might have to face the judgment of his friends like Sakura or Kakashi. The story could also revolve around how they plan for the future of their child, whether it's about training the child to be a great ninja or just providing a normal life away from the chaos of the ninja world.
In a fanfic with a female Sasuke, the plotline might include her using her femininity as a strength in the ninja world. She could be more in tune with nature - based jutsu, for instance, and use that to her advantage. Her journey could also involve breaking gender barriers in the Hidden Leaf Village. She might be the first female to attempt certain high - level ninja training or missions. And her relationships with other characters like Sakura could be more complex, with a mix of competition and sisterly support as they both strive to be great ninjas in their own ways.
One possible plotline could be a comical situation where Sasuke is exasperated with Naruto's silly behavior and decides to 'spank' him as a form of discipline in a very light - hearted and friendly way. It could be part of their banter and growth as friends.
Another plotline might be exploring Naruto's past more deeply. Maybe there are secrets about his parents that were never fully revealed in the original. In the fanfiction, he could discover something new about his father's time as Hokage or his mother's Uzumaki heritage that changes his perspective on his own powers and responsibilities.
One possible plotline could be that Sasuke has been misled by some false information. Maybe he believes that the female Naruto is in some way a threat to Konoha's future. So he kidnaps her to keep her away from the village. However, as he spends time with her, he realizes his mistake and they end up working together to clear up the misunderstanding.
Well, perhaps Naruto and Sasuke are forced to join Orochimaru. Maybe Orochimaru has some kind of leverage over Konoha that makes them comply. In this fanfiction, they could start to learn unique jutsus from Orochimaru but also have to constantly resist his more evil intentions. They might also meet some interesting characters within Orochimaru's lair.