Suppose the girl is a kunoichi from a rival village. Naruto meets her during a ninja summit. At first, they are at odds due to their villages' history. But as they get to know each other better, they realize that they have more in common than they thought. Naruto shows her that there can be peace between their villages, and they end up falling in love, becoming a symbol of unity between the two ninja communities.
In a fanfiction, Naruto could pretend to be a girl to surprise his friends. He might do it as a prank during a festival in the village. He would put on a girl's outfit, with a long wig and a pretty dress. His friends' reactions would be hilarious. Sasuke might be initially confused, while Kakashi would probably see through the disguise right away but play along for fun.
Well, in this fanfiction scenario, they could team up. Anakin and Kylo Ren could realize that they have a common enemy, perhaps some new dark force that has emerged in the galaxy. Together, they could combine their skills and knowledge of the Force. Anakin's mastery of lightsaber combat and Kylo Ren's more unorthodox fighting style could make them a formidable duo. They would also have to overcome their differences in ideology, with Anakin believing in the Jedi way (even after his fall) and Kylo Ren having a more muddled view of the Force.
Imagine a fanfiction where there's a power exchange. The Powerpuff Girls gain some ninja abilities like chakra control, and Naruto gets some of their powers like flying for a short time. This would lead to some really interesting battles and character development. The Powerpuff Girls would have to learn how to use their new skills in a different way than they're used to, and Naruto would have to adjust to his newfound powers.
Kiba could end up having a whole new set of skills or abilities as a girl. In the Naruto world, different genders might have different natural affinities for certain types of jutsu. So, as a girl, Kiba could discover she has a better connection to, say, healing jutsu or some other form of ninjutsu that she didn't have before. This could be really interesting as it would change her role in the team and in the village.
In this fanfiction encounter, Naruto could be the first to approach Gaara. He might start by asking some simple questions, like what Gaara likes to do. Gaara, who is not used to such friendly approaches, would be taken aback. However, Naruto's genuine kindness could make Gaara lower his guard a little. They might end up sitting together in silence for a while, just being in each other's company. This small moment could be the foundation for a relationship that would grow over time, as they both realize they are not alone in their struggles.
One possible thing that could happen is that Roger would tell Luffy about the real origin of the Devil Fruits. Given that Roger had explored so much of the world, he might know secrets about these strange fruits that no one else does. This knowledge could give Luffy an edge in his battles and his journey. Another aspect could be that Roger shares his experiences with the ancient weapons. Luffy might then be more aware of the power and danger they pose, which could be crucial in his future adventures.
In the fanfiction, their pre - Hogwarts encounter could be a catalyst for Hermione to become more interested in international wizarding cultures. Since Viktor is from Bulgaria, she might start researching Bulgarian magic and traditions more. This could then lead to her being more open - minded when it comes to the Triwizard Tournament and the different cultures it brings together. And for Viktor, meeting Hermione could inspire him to pursue academic knowledge more rigorously, as he sees her dedication to learning.
When Team Minato meets future Obito, there could be a clash of ideologies. Obito, having seen the harshness of the future, might have a more extreme view. Minato, on the other hand, is more idealistic. This could lead to intense debates within the group. Also, Rin's reaction would be interesting. She might be the one to try to bridge the gap between the old Obito and the new, more hardened Obito.
Well, in this fanfiction scenario, Grogu and Yoda's meeting could be filled with wisdom - sharing. Yoda might teach Grogu some advanced Force techniques. Maybe he'd show Grogu how to better control his levitation skills or how to communicate more clearly with other Force - sensitive beings. Grogu, on the other hand, could show Yoda his unique way of using the Force that he has developed during his time with Din Djarin.
In a fanfiction where Sansa and Daenerys meet, they could initially be wary of each other. Sansa, having seen so much political intrigue in the North, might be cautious of Daenerys' power. Daenerys, on the other hand, could see Sansa as a potential ally or threat in Westeros. Maybe they start by exchanging stories of their hardships. Sansa could tell of the horrors she faced during the Bolton rule and Daenerys of her journey across the sea. Eventually, they might find common ground in their desire to rule justly and protect the people. They could join forces, with Sansa's knowledge of the North and Daenerys' military might, to face a greater threat like the White Walkers.