One common theme is family dynamics. Since it's about Bella's sister, it often explores how the sister fits into the family structure, especially with Bella being so central in the original Twilight story. Another theme is love triangles. Just like in the original, but now with the sister involved in some way.
Love and friendship are also common themes. The baby sister may find love among the supernatural beings or form strong friendships. For example, she could become friends with some of the werewolves while also having a connection with the Cullens. It adds a new layer to the existing relationships in the Twilight world.
A common trope is the twin having a different supernatural ability. For example, she might be able to control the elements while Bella has her mind - shield. Another is the love triangle, but instead of Edward - Jacob - Bella, it's between different characters involving the twin. Often, the twin also has a secret she's keeping from Bella which drives the plot.
In 'Twilight Bella's brother fanfiction', a frequent theme is the struggle for normalcy. Despite the presence of vampires and werewolves, he tries to maintain a normal life, like going to school and having a social life. Another common theme is the exploration of power. Sometimes he might gain some sort of power or ability, and the fanfiction then focuses on how he copes with it. There's also the theme of acceptance. He has to accept the new reality of the Twilight world, whether it's accepting the existence of vampires or his sister's new life. This acceptance can be a long and difficult journey in many of these fanfictions.
One common theme is power struggle. Since the Volturi are so powerful, fanfictions often explore how Bella either challenges or is influenced by that power. For example, she might try to assert her own will against their rules.
In Twilight quil and Bella fanfiction, a frequent theme is the transformation of relationships. It could be Bella's relationship with Quil evolving from friendship to something more. Another theme is the exploration of cultural elements within the Twilight world related to Quil. For example, how his heritage affects his relationship with Bella. And there's the theme of redemption. Maybe one of the characters has made mistakes in the past and their relationship with the other is a way to find redemption. It gives a new depth to their characters and the story.
One common theme is the mother - daughter like relationship. Esme often takes on a maternal role towards Bella. Another theme is protection. Esme wants to protect Bella from the dangers of the vampire world.
A prevalent theme is also the idea of destiny. In the 'Twilight' world, destiny already plays a big role, and when Bella becomes a goddess, it often ties into a greater destiny she has to fulfill. Maybe she has to save the vampire - werewolf - human world from a great evil. Also, self - discovery is a key theme. As a goddess, Bella has to figure out who she really is and what she stands for, which is different from her human self.
Well, the common themes in 'Twilight Bella and Emmett fanfiction' are quite interesting. First, there's the theme of self - discovery. Bella might learn more about herself through her interactions with Emmett. Second, family. Since Emmett is part of the Cullen family, stories can show how Bella fits into that family dynamic in a different way when Emmett is more involved. And third, power dynamics. Emmett is physically powerful, and how that affects his relationship with Bella, whether it's in a protective way or in terms of her learning from his strength, is often explored. For instance, in some fanfictions, Bella becomes stronger herself by emulating Emmett's confidence and power.
Many badass Bella fanfictions explore themes of her leadership. She could be leading a group of vampires, humans, or a combination of both against common enemies. There's also often a theme of her breaking free from the traditional gender roles in the Twilight series. Instead of just being the love interest, she becomes a force to be reckoned with, making her own path and decisions that impact the entire world of Twilight.
Love is a very common theme, just like in the original series. The intense, all - consuming love between Edward and Bella is often explored further in fanfiction. It might show different scenarios where their love is tested or strengthened.