A major plot point can be the change in their relationship dynamics. Before, Edward was the more powerful one in some ways. But once turned by Bella, there's a shift. They might have to re - learn how to interact with each other. Also, how the other vampires, like the Cullens, react to this unorthodox turning is very interesting. Do they accept it or oppose it? And then there are the challenges they face in the human world. How do they hide their new situation from Bella's family and friends? All these make for very engaging plot points.
In some 'bella turns edward into a vampire fanfic', a key plot point is the consequences of this act on the vampire community at large. It could stir up old rivalries or create new alliances. There might be a council of vampires that has to decide what to do about this situation. Also, the exploration of Bella and Edward's new powers is fascinating. Since Bella was the one who did the turning, there could be some unique aspects to Edward's new vampiric abilities that are different from the normal turning process.
Often, one interesting plot point is how Bella acquires the knowledge or power to turn Edward. Maybe she discovers an ancient spell or some new vampire lore. Another point could be Edward's initial reaction. He might be shocked, angry, or even a bit excited at the prospect of a new existence.
Well, a common plotline is Bella's discovery of new vampire senses. In fanfiction, it could be that she discovers she has a unique sense that other vampires don't have, like being able to sense the emotions of humans from a great distance. Also, there could be a plot where Bella has to hide her new vampire self from her human family and friends, which creates a lot of tense and emotional moments as she tries to keep her double life a secret.
In many such fanfictions, a key plot point could be the internal struggle Carlisle faces. He is a moral vampire, so turning Bella goes against his principles at first. He might worry about how Bella will adapt to the vampire life, with its bloodlust and the need to hide from humans. Another plot point could be Bella's reaction. She may be initially excited at the prospect of immortality and being with Edward forever, but then realizes the sacrifices she has to make, like leaving her human family behind.
There's also 'Twilight Reimagined: Bella's Choice'. Here, Bella turns Edward into a vampire out of a desperate need to save him from a new and powerful threat. The fic delves into the moral implications of her decision and how it alters the vampire world's view of their relationship.
One idea could be that Bella already has some latent vampire powers herself when she meets Edward. Maybe she can sense other vampires from a distance. This would add a new dynamic to their relationship as they both figure out what it means.
Often, other vampire clans that oppose Bella's transformation can be the main antagonists. They might see her as a threat to the vampire world order. For example, a traditionalist clan that believes humans should not be turned so easily could try to harm Bella or drive her away from Edward.
Well, some might involve their unique vampire-human relationship in new and exciting scenarios. For example, they could face challenges from other vampire clans together and how their love endures through that. Maybe there are plots where they discover new powers or abilities as a couple.
I'm not sure if there is such a specific fanfic. There are countless fanfics out there, and while the 'Twilight' series has a large fanfic community, this particular combination seems rather unorthodox. It might exist in the vast realm of fan - created works, but it's not a common or widely - known trope within the official 'Twilight' lore.
One interesting plot twist could be that Bella's transformation into a vampire gives her a unique power that no other vampire has. For example, she might be able to control the weather. Another twist could be that instead of joining the Cullen family right away, she runs off on her own to explore the vampire world. Maybe she discovers a whole new coven that has different values and ways of life compared to the Cullens.
In this fanfiction, perhaps there's a plot where Bella's transformation causes a stir in the vampire community. Some vampires might be jealous that Damon turned her, while others might see her as a threat. Also, her human friends could react in different ways. Some might be scared and avoid her, while others might be intrigued and try to stay close. And Bella could have to learn how to navigate this new world of vampire politics and secrecy.
One possible plot could be that Edward, now as a girl, has to deal with the different reactions of his friends. For example, Alphonse might be a bit confused at first but quickly adapts and becomes very protective. Edward could also face new challenges in his alchemical studies as some traditional alchemy is male - dominated. And he might have to struggle with his own self - identity, trying to figure out if he still has the same goals and values as before the transformation.