Well, there are several common themes. The theme of transformation is quite popular. Bella might transform in some way, either physically or mentally, due to her association with the Lost Boys. Another theme is the battle between good and evil. The Lost Boys often have to face off against various threats, and Bella gets caught up in these battles. And of course, there's the overarching theme of love and relationships, as Bella forms a special bond with the Lost Boys.
One common theme could be the idea of forbidden love. Since Bella is from a different world than the Lost Boys, their relationship might be seen as something not allowed. Another theme might be adventure, as Bella gets involved in the wild and dangerous world of the Lost Boys.
The 'bella is the lost boys mate fanfiction' might be centered around Bella's journey as the mate of the Lost Boys. It could explore their unique bond, perhaps with elements of romance, danger, and the supernatural. For example, they could be facing off against other supernatural beings while also growing closer as a couple.
One common theme is the discovery of self. When a character finds their mate among the lost boys, they often start to understand themselves better. Another theme is loyalty. The mates are usually very loyal to each other and to the group of lost boys. For example, in many stories, they will stand by each other in times of danger.
In a lot of these fanfictions, the theme of transformation is present. Bella might transform in the way she views the world and her place in it because of the Lost Boys. And the Lost Boys might also transform from being wild and carefree to having a more serious and committed side because of their love for Bella. It's really interesting to see how these themes play out in different stories.
Obviously, Bella and the Lost Boys are the main characters. Bella is the key figure as she is the mate, and the Lost Boys play an important role as her partners in the story.
One popular story could be 'Bella's Encounter with the Lost Boys'. In this fic, Bella stumbles upon the Lost Boys' hideout and a whole new adventure begins. There's a lot of character interaction and the author does a great job of building tension between Bella and the boys.
One common theme is the allure of the supernatural. David being a vampire, there's the mystery and danger that comes with being involved with him. Another theme is transformation, both in terms of the reader perhaps being turned into a vampire and also in their personal growth as they enter this new relationship. And of course, love against all odds is a big theme, as the reader is getting involved with a vampire which is not exactly a normal or safe relationship.
Power is a common theme. Since Voldemort is a very powerful dark wizard and Bella is his devoted follower, their relationship in fanfiction often revolves around power sharing or Bella gaining power through her connection to Voldemort.
In 'bella and paul mate fanfiction', the theme of transformation is often present. Not just Bella's potential transformation into a werewolf's mate, but also the transformation of their relationship from hostility or indifference to love. There is also the theme of protection. Paul is a werewolf and has a natural instinct to protect, and this plays a big role in how he relates to Bella. And of course, the theme of love against all odds, as their relationship is not an easy one considering the complex world of Twilight that they are a part of.
The theme of self - discovery is also prevalent. As Bella gets involved with her mate, she often discovers new things about herself, her desires, and her place in the world.
One common theme is the exploration of a unique relationship. Since Bella and Tanya are not the most obvious pairing in the original lore, fanfictions often focus on how they come to terms with being mates. Another theme is the struggle against society's expectations. Vampires in these stories might have certain views on who should be with whom, and Bella and Tanya have to fight against that.