One interesting plot could be their journey to understand each other's pasts. Since they are mates, they might have to deal with the traumas and experiences that each has had before coming together. For example, Jasper's military past might be a point of contention or a source of strength in their relationship. Another plot could be them facing challenges from the vampire community. Maybe some vampires don't approve of their union, which would lead to a series of events where they have to prove their love and loyalty to each other.
One interesting plotline could be Jasper helping Bella to control her new - found vampire abilities in a unique way. Maybe he uses his own experience with self - control to guide her.
The main characters are obviously Bella and Jasper. Bella is often a central figure in many fanfictions, and here, as Jasper's mate, she would play a crucial role in their relationship. Jasper, with his unique abilities and his own backstory, is also a main character. Their relationship and how they interact with each other form the core of the story.
One interesting plotline is the idea of Bella having to choose between Jasper and Carlisle based on more than just love. It could be about choosing a future for herself in the vampire world. For instance, Carlisle might offer a more stable and 'ethical' vampire life, while Jasper could represent a more passionate and unpredictable option.
One interesting plot could be where Edward and Bella face a new supernatural threat together that tests their relationship in ways not shown in the original story. For example, a new type of vampire with unique powers arrives in Forks.
A third plot could be about their journey of self - discovery within the relationship. Bella might learn more about her own powers or abilities because of Irina. And Irina could become more in touch with her emotions through Bella, leading to a deeper and more meaningful relationship.
One interesting plot could be that Klaus and Bella meet in a mysterious forest. They initially clash due to their different natures but gradually find a connection. Another plot might involve Bella having some special power that Klaus is intrigued by and he tries to figure it out while falling in love with her.
One interesting plot could be their journey of understanding each other's powers. For example, if Jane has her unique vampire abilities and Bella has her own set of skills or traits, they might have to figure out how to combine or work with them. Another plot could be them facing challenges from the vampire coven. Maybe some members don't approve of their bond and they have to fight for their relationship.
Some fanfictions might have a plot where Bella and Stefan try to integrate their lives. Since they come from different fictional universes (Twilight and The Vampire Diaries), they could face difficulties in getting along with each other's friends and families. There could be a lot of drama as Bella tries to understand Stefan's past with Katherine and other vampires, and Stefan tries to understand Bella's connection with Edward. This exploration of their relationship in the context of their complex pasts can make for a really engaging plot.
One interesting plot could be that Bella discovers a hidden connection with Eleazar that goes beyond her relationship with the Cullens. Maybe she finds out they have a shared power or a special destiny together.
One interesting plot could be where Edward and Bella face a new kind of vampire threat together. They have to use their unique bond as mates to overcome it. For example, a group of vampires with special powers that can disrupt their mental connection.