Another theme could be growth. As the story progresses, both Bella and Lemon might learn new things, whether it's a new skill like painting or a life lesson such as the importance of honesty. Their experiences in the fanfiction contribute to their personal growth.
One common theme is family bond. Since Bella and Lemon are siblings, stories often focus on how they support and care for each other through different situations, like dealing with school problems or helping around the house.
One common theme could be family dynamics. Since it involves a brother - sister relationship, even if one is an oc (original character), exploring how they interact within the family context can be a theme. For example, how they support or conflict with each other.
Friendship is a common theme. In many 'bella and lemon fanfiction' stories, Bella and Lemon form a strong bond that helps them get through various challenges. For example, they might support each other during a difficult time at school or in their family lives.
Family loyalty is a common theme. The brother will often go to great lengths to protect Bella, showing the strong bond of family. For example, he might face off against her enemies without hesitation.
One common theme is the exploration of their forbidden love. Since Jasper is a vampire and Bella is a human in the Twilight universe, there's often a sense of danger and secrecy in their relationship in the fanfiction. Another theme could be the struggle against their own natures. Jasper has his vampire instincts and Bella her human vulnerabilities.
One common theme is the forbidden nature of their relationship. Since Bella is associated with the Cullens and the Volturi are in a different, more powerful and often menacing position, their connection is seen as something that goes against the norm. Another theme is power play. The Volturi are very powerful, and how Bella navigates that power in relation to her feelings is often explored.
One common theme is the discovery of love. Bella and Logan often start off as strangers or acquaintances and gradually fall for each other. Another theme is the idea of overcoming obstacles in their relationship.
One common theme is the exploration of a forbidden relationship. Since it's a rather unusual pairing in the context of the original story, the fanfiction often focuses on how they deal with the social and moral implications of their feelings for each other.
One common theme is the idea of a forbidden or unexpected love. Since Bella and Damon are from different fictional universes, their relationship is something that goes against the norm in their respective stories.
One common theme could be family dynamics, as Bella and Renee have a mother - daughter relationship. Another might be self - discovery, especially for Bella within the context of her relationship with her mother.
Adventure is also prevalent. They might embark on quests together, face dangerous creatures or explore unknown territories. This adds excitement and action to the fanfiction. For example, they could be on a journey to find a lost magical artifact that has significance to their relationship or their world.