A great plotline might be that they have to team up to save their friends from an ancient vampire threat. They'd use their combined powers and unique bond to fight off the danger. In this kind of fanfiction, their relationship could grow stronger as they face this common enemy. For example, they might have to figure out the weaknesses of a powerful vampire that has been awakened from a long slumber and is targeting their friends. Their different perspectives - Edythe's long - lived experience and Bella's fresh view - could play an important role in devising a strategy to defeat the enemy.
Another plotline could be that they go on a journey to discover the origin of their kind. Along the way, they encounter various other supernatural beings and have to learn to co - exist with them. This would test their relationship as they face new and unexpected situations, like having to negotiate with a powerful werewolf pack or a coven of witches.
One interesting plotline could be Edythe and Bella exploring different dimensions together. Maybe they find a way to travel to a parallel world where their relationship has different challenges and opportunities.
In some fanfiction, their relationship develops quickly. They might share a moment of intense eye contact and instantly feel a deep connection. From there, they start spending all their time together, getting to know each other's likes and dislikes.
One interesting fanfiction could be where Emmett and Bella go on an adventure in the forest that's not part of the original story. In this fic, Emmett shows Bella some secret spots known only to the Cullens. It's a story full of discovery and newfound friendship between them.
One interesting fanfiction could be about Bella and Alice going on a shopping spree together in a human - vampire friendly town. They could bond over choosing outfits and sharing fashion tips, which is quite different from the usual intense situations in the original series.
One interesting fanfiction could be about Bella having special powers that Carlisle discovers and they go on a journey to understand them. It might involve them traveling to different vampire covens to seek knowledge.
In some Bella Swan pregnant fanfiction, the plot could revolve around Bella's human friends' reactions. They might be shocked and scared at first, but then gradually come to accept the situation. And there could be a lot of drama about how Bella is going to balance her human life with this new, very different situation of being pregnant with a half - vampire baby. There could also be a focus on her relationship with Edward during this time, like how they grow closer or face new challenges in their relationship because of the pregnancy.
In some 'Bella Swan as a Vampire' fanfiction, a great plotline is her exploration of her new vampire senses. She could find that her sense of smell leads her to discover things about the past of the places she visits. And in terms of relationships, her bond with Edward could change in a really interesting way. Since they are both vampires now, they might have different power dynamics and new challenges in their relationship. For instance, they could compete in terms of their vampire skills, which could either strengthen or strain their relationship.
One interesting plotline could be Bella being reborn with some sort of supernatural power. For example, she might be able to control the elements. This would completely change the dynamic of her relationships in Forks. Another could be that she remembers her past life and uses that knowledge to avoid some of the dangerous situations she got into in the original story, like with the Volturi.
Another interesting one is 'Alice and Bella: A New Alliance'. In this fanfiction, Alice and Bella team up to solve a mystery in the vampire world that even the Cullens are not fully aware of. It shows their intelligence and determination.
One great 'Bella Swan Alice Cullen Fanfiction' is 'The Unforeseen Bond'. It explores a unique friendship between them that goes beyond the typical storylines. Another one is 'Alice's Vision for Bella', which focuses on how Alice's visions play a role in Bella's life in new and interesting ways. There's also 'Bella and Alice: A Different Path' where they take on challenges together that are not part of the original plot.
A plot could revolve around Carlisle and Bella going on a secret mission together. Maybe they have to find a lost ancient vampire artifact that could change the future of the vampire world. Along the way, they develop a deep bond and respect for each other.