Another theme is the exploration of new powers or abilities. Sometimes in these fanfictions, Bella's friendship with the gang unlocks new powers within her or she discovers something about herself she didn't know before. It could be related to her latent supernatural abilities or just her own strength of character.
Another great one could be the fanfiction where Bella's friendship with the TVD gang starts off rocky. She has to prove herself to them as they initially think she's just a normal human who can't handle their supernatural world. But as time goes on, she shows them her strength and they become a tight - knit group.
Another theme is the discovery of their unique relationship. They might realize as they grow up that their friendship is something more special and deeper than just a normal childhood bond. For example, in some fanfictions, they start to notice their feelings changing as they enter adolescence. And this exploration of new feelings while still having that childhood base is really interesting.
A major theme is growth. As they become friends, both Bella and Leah grow as individuals. They learn from each other's strengths and weaknesses. Also, the theme of female empowerment is often seen. They support each other in achieving their goals, whether it's Bella getting better grades or Leah standing up to a bully. There's also the theme of forgiveness, as in some stories they have misunderstandings that they need to forgive and move past.
In many 'bella edward best friends' fanfictions, the theme of self - discovery is prevalent. As they are friends, they help each other to learn more about themselves. Also, the theme of protection is common. Edward, with his abilities, often tries to protect Bella in these stories. For example, in some fanfictions, when there are threats from other supernatural beings, Edward is always there for Bella. And this kind of situation also deepens their friendship.
One common theme is the struggle with identity. The OC, being pregnant, may question who she is now and how it changes her role in the TVD world. For example, is she still a fighter against the vampires or does the pregnancy make her more vulnerable and change her priorities.
The theme of sacrifice is often present. She may have to sacrifice her own desires or safety for the sake of her unborn child. In some fanfictions, she might even have to make difficult choices between her love life and the well - being of her baby, all while dealing with the vampires, werewolves, and witches that populate Mystic Falls.
One common theme is the clash of different power systems. In both The Vampire Diaries (TVD) and Harry Potter (HP), there are unique forms of power. In crossovers, it's interesting to see how the magic of HP and the supernatural abilities in TVD interact. For example, how would a vampire react to a Patronus charm? Another theme is the exploration of different cultures. The wizarding culture in HP and the vampire - werewolf - witch culture in TVD are very different, and crossovers often explore how characters from one world adapt to the other.
Another theme is protection. Given the dangerous nature of their world, protecting the unborn child from various threats is often a central plot point. Enemies might try to harm the baby because of its potential power or to get revenge on Caroline and Klaus.
A sense of adventure is also common. The gang usually goes on some sort of journey or mission, like exploring a new part of the Twilight world or trying to solve a mystery. This gives the story an exciting element. And, there is often the theme of self - discovery. As they face different situations, the characters learn more about themselves and their powers or abilities within the context of the gang.
Self - discovery is also often seen. As they interact with each other, both Bella and Will learn more about themselves, their strengths, weaknesses, and what they truly want in life. This theme makes the characters more relatable and the story more engaging.