A third storyline could be a time - travel adventure. Discord accidentally sends Celestia back in time to a period when Equestria was in its infancy. Celestia has to rely on Discord's knowledge of the chaotic nature of time to get back to her own era. Along the way, they witness key events in Equestria's history and Celestia realizes how important both order and chaos are in shaping the world she knows.
Another storyline could involve Celestia and Discord having to team up against a common enemy. Maybe an ancient evil that threatens Equestria. At first, they might struggle to work together due to their very different natures. Celestia is all about order and harmony, while Discord is chaos personified. But as they face challenges, they learn to appreciate each other's strengths and develop a unique friendship.
One interesting fanfic could be about Celestia and Discord having to team up to save Equestria from a new, powerful dark force. They start off not trusting each other but as the story progresses, they learn to work together and even become friends.
Well, the plot could involve Celestia and Discord having to team up to save Equestria from a new, unknown threat. Maybe a powerful dark magic that neither of them can handle alone.
For Celestia, her character could be developed by showing her struggle with her own perfectionism. When dealing with Discord, she might realize that her rigid view of order isn't always the best solution. This could lead to her becoming more flexible and open - minded. For example, she could start to see the beauty in Discord's chaos in some situations.
Create an interesting plot. It could be a conflict between order (represented by Celestia) and chaos (represented by Discord). Or it could be a story where they have to cooperate against a common enemy. Make sure the plot has a clear beginning, middle, and end. For example, start with Discord causing some minor chaos in Canterlot, Celestia tries to stop him in her usual way but fails. Then a bigger threat emerges that forces them to work together. In the end, they either defeat the threat or find a new balance between order and chaos.
One possible storyline could be Spike discovers a long - lost magic spell that is connected to Celestia's past. He embarks on a journey to find out more about it and ends up having to team up with Celestia. Along the way, they face various challenges and learn more about each other's strengths and weaknesses.
Another theme is the redemption arc through love. Discord might be seen as a character who changes for the better because of his love for Celestia. This can involve him learning to be less chaotic and more understanding, all in the name of love.
One possible storyline could be that Princess Celestia discovers she's pregnant and has to deal with the political implications within her kingdom. Her pregnancy might cause a stir among the nobles and commoners alike, as they wonder about the future of the realm with an heir on the way.
One great MLP Princess Celestia fanfic is 'The Sun's Daughter'. It delves deep into her backstory and her relationship with Luna. It shows a more vulnerable side of Celestia which is really interesting.
A plot could also revolve around her discovery of her heritage. Maybe she starts off not knowing who her father is and as she uncovers the truth, she has to come to terms with being the daughter of such a chaotic being. This internal struggle could be a major part of the fanfic.
One interesting aspect is the unique character dynamics. Discord is a chaotic character, and in a fanfic centered around his 'bride', it can lead to really unexpected and humorous interactions. For example, his attempts to court in his own chaotic way can be both funny and endearing.