Elsa is more reserved and cautious due to her past experiences of accidentally hurting people with her powers. Emma, on the other hand, is bold and impulsive. Their personalities would create an interesting dynamic. Emma would likely encourage Elsa to be more adventurous and take risks, while Elsa might teach Emma the importance of thinking before acting. For example, when they face a difficult situation, Emma would be quick to jump in, but Elsa would make sure they consider all the possible consequences first.
A really interesting plot could be that an ancient curse has been placed on both Emma's Storybrooke and Elsa's Arendelle. The curse is slowly draining the magic from both places. Emma and Elsa team up, using their combined magic knowledge and their strong wills. They travel to different magical realms to find the source of the curse and break it. They encounter many magical creatures and face various challenges that test their friendship and their magic skills.
In Elsa and Anna fanfiction, a prevalent theme is the exploration of their powers. For example, Elsa might learn to control her powers in new and unexpected ways, and Anna could develop some sort of magical ability as well. Redemption is another theme, especially for Elsa if the story is set in an alternate universe where she made different choices in the past. Also, there are fanfictions that focus on the two sisters dealing with political intrigue in Arendelle, adding a new layer to their characters.
One idea could be that Elsa discovers a new, hidden power that she doesn't understand at first. This power has the ability to transport her and Anna to different realms. They end up in a realm where all the seasons are mixed up, and they have to work together to restore order. Another plot could involve a mysterious character from their past coming back and causing trouble in Arendelle. Anna tries to figure out the mystery while Elsa uses her powers to protect the kingdom.
A creative plot could be that there is a prophecy in both their worlds about two powerful women coming together to restore balance. Elsa and Emma are initially unaware of this prophecy. Elsa's powers start causing strange weather patterns that are affecting Emma's town. Emma sets out to find the source of the problem and meets Elsa. They realize they are the ones in the prophecy. Together, they must face challenges like a powerful sorcerer who wants to prevent them from fulfilling the prophecy. They learn to trust each other and use their unique powers to overcome obstacles and ultimately restore balance to their respective worlds.
To develop their relationship in fanfiction, you could explore their different interests. Anna is more outgoing and loves adventures, while Elsa is more reserved. Have Anna introduce Elsa to new things like a local festival in a neighboring village. At the same time, Elsa can share her knowledge of magic with Anna. Also, create scenarios where they have to communicate better. For instance, if there's a misunderstanding between them caused by a new character in Arendelle, they need to talk it out to resolve it. This would deepen their understanding of each other.
Emma is often headstrong and determined. She can drive the action forward in the fanfiction, not afraid to take risks. Elsa, on the other hand, is more reserved but has great power. Her cautious nature can balance Emma's impulsiveness. For example, when they face a difficult decision, Emma might want to rush in, but Elsa could stop and think about the consequences, creating interesting tension in the story.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). There are a vast number of Elsa and Anna fanfictions there. Wattpad is also a good place. Just use the search function and type in 'Elsa and Anna fanfiction' and you'll get a bunch of results. Another option is FanFiction.net, which has been around for a long time and has a large collection of fan - made stories about various characters, including Elsa and Anna.
One idea could be that Mama and Papa take Elsa and Anna on a camping trip. During the trip, Elsa accidentally freezes a nearby stream, and they all have to work together to thaw it out. This could show their family bond and how they support each other through difficulties.
One popular 'Once a upon a time story' is 'Cinderella'. It's about a kind - hearted girl who is mistreated by her stepmother and stepsisters but eventually finds true love with the help of her fairy godmother. Another is 'Snow White', a beautiful princess who has to flee from her evil stepmother and finds refuge with the seven dwarfs. And 'Sleeping Beauty' is also well - known, where a princess is put into a deep sleep by a curse and is awakened by a prince's kiss.