In a fanfiction, Black Panther and Wonder Woman could be summoned to a neutral ground by a powerful being. This being tells them that they must work together to stop a time - traveling villain who is changing the past to gain ultimate power. They have to put aside their differences and use their unique abilities, like Black Panther's stealth and Wonder Woman's lasso of truth, to track down and defeat the villain.
They could form an alliance when their worlds are invaded by a common enemy from another dimension. Black Panther uses his tactical mind and Wakandan resources while Wonder Woman uses her combat skills. Result? A badass team - up against the invaders.
A possible plot in the fanfiction could be that Batman gets lured into Wakanda due to some strange technology or mystery related to a WayneTech experiment that has connections to Wakandan Vibranium. There, he meets Black Panther, and they initially have a tense encounter as they don't fully trust each other.
A fanfiction idea could involve Wonder Woman visiting Wakanda. She is amazed by the advanced technology and the unique culture. Black Panther shows her around and they start to exchange ideas about leadership and protecting their respective peoples. Then an outside threat arrives, perhaps in the form of a group of villains who want to steal Wakanda's vibranium. Together, they fight off the invaders and in the process, Wonder Woman and Black Panther become good friends and allies.
A simple alliance in this fanfiction could be that Baiken helps Naruto with her sword skills. Naruto is mainly a ninjutsu user, so her sword - based combat knowledge could be a great addition to his fighting repertoire.
Another aspect in a fanfiction could be their cultural differences. Naruto comes from a world of ninjas with strict honor codes, while Shego is from a more modern - ish world with different moral values. This could lead to many comical or thought - provoking situations. For instance, Naruto might be shocked by Shego's casual attitude towards stealing or using underhanded means in combat. However, as they spend more time together, they begin to see the value in each other's perspectives. They might even influence each other's ways of thinking and acting, with Naruto making Shego more empathetic and Shego teaching Naruto to be a bit more flexible in his approach to problems.
A fanfiction could also explore the idea of Starkiller and Ahsoka meeting in a post - Empire world. Starkiller, having broken free from his Sith past, and Ahsoka, who has seen so much of the galaxy's turmoil, could join forces to help rebuild and protect the newly - emerging peaceful systems. They would have to overcome their differences, as Starkiller has a more aggressive style while Ahsoka is more in tune with the Jedi's peaceful ways. But their shared goal of a better galaxy could bring them together. They could start by training a new generation of Force - sensitive beings, combining their unique teachings to create a more balanced approach to the Force.
In fanfiction, Neji and Sakura could form an unlikely alliance against a common foe within the Hidden Leaf Village. This could be due to some political intrigue where they have to trust each other despite their different personalities.
Another interesting alliance could be between Ron and Keroberos. Ron, with his love for food, might be constantly bribing Keroberos with treats to get information about the Clow Cards or to ask for his help in some comical situations. Keroberos, being a bit of a glutton himself, would be easily swayed by Ron's offerings.
A simple fanfiction plot could be that Peter accidentally stumbles into Wakanda while on a mission. Shuri finds him and at first is suspicious. But then she realizes his good intentions. They start to exchange ideas about technology and hero - work.
In some fanfictions, there could be a time - travel element. What if Draco and Hermione are sent back in time? They might have to work together to ensure the future they know doesn't change. This could lead to some interesting character development as they are forced to rely on each other in a completely different time period, and they may see each other in a new light as they face challenges together.
Perhaps the fanfiction focuses on a parallel universe where Snape, Harry and Lucius are all on the same side from the start. They are part of a secret group that is trying to reform the wizarding world's education system. Their different perspectives - Snape's strictness, Harry's compassion and Lucius' cunning - combine to create a powerful force for change.