Perhaps the magic baby has some special powers that are connected to Swan and Queen's own magic. For example, the baby's power could be the key to restoring balance in a magical realm that has been thrown into chaos. So, Swan and Queen have to figure out how to help the baby control and use its powers while also keeping it out of the wrong hands. This could involve a lot of adventures, facing off against other magical beings who either want to use the baby's power for evil or are simply afraid of it.
In some fanfictions, the magic baby could be a symbol of the union between Swan and Queen. The story could focus on how they come to terms with their new roles as parents. They might face challenges like society not accepting their relationship or the unique situation of having a magic baby. But through it all, their love for each other and the baby grows, and they fight to create a normal and happy life for their family.
The main characters are obviously Swan and Queen. Swan is often depicted as having a certain grace and inner strength, which is important when it comes to dealing with the magic baby and the challenges that come with it.
One popular swan queen baby fanfiction could be 'A New Beginning for Swan and Queen'. It might focus on their journey as new parents and how they handle the challenges that come with raising a baby in their unique situation.
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.
One popular plotline could be the challenges they face as new parents. Maybe the baby has some special powers inherited from them, and they have to protect the baby from those who might want to use those powers for evil. Another could be a more comical one where Killian is completely clueless about baby - care at first, but Emma finds his attempts endearing.
There could also be a plotline where Bella tries to understand why she was made the unwanted bride in the first place. She delves into the history and politics of the vampire or werewolf world (depending on the context of the fanfiction) and uncovers secrets that not only help her deal with her current situation but also change the entire power dynamic in that world.
One interesting plotline could be Rosalie and Bella becoming best friends and helping each other out in the vampire - human world. For example, Rosalie could teach Bella how to better defend herself against other vampires using her own unique skills. Another plotline might be them teaming up to change some of the rules in the Cullen family. Maybe they work together to make it easier for Bella to be more involved in vampire matters without always being in danger.
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.
A plotline could involve Jasper and Bella forming a closer bond as friends first. They might start sharing their deepest fears and secrets, which in turn leads to a different kind of relationship. For example, they could confide in each other about their struggles with being a vampire (Jasper) and being in a world full of the supernatural (Bella). This could gradually develop into a romantic relationship that is based on a strong foundation of friendship and mutual understanding.