One aspect of Carlisle Cullen x Bella fanfiction could be the exploration of their unique relationship within the Twilight universe. Carlisle is an old and wise vampire, while Bella is a young human. Fanfictions might delve into how Carlisle's self - control and moral code interact with his growing feelings for Bella. It could also show how Bella views Carlisle in a different light compared to Edward, perhaps seeing him more as a father figure or a source of guidance at first, and then developing more complex emotions.
In a fanfiction, Carlisle Cullen might meet a vampire from a different coven. This vampire has a very different view on life compared to Carlisle. They initially clash but as they get to know each other more, Carlisle starts to see the world in a new light. Their love story could be about how they overcome their differences, like her more carefree attitude towards human blood in contrast to Carlisle's strict self - control, and find love in each other.
I also like 'The Healer's Touch'. In this fanfiction, Carlisle uses his medical skills not just to heal Bella physically but also to help her through some emotional traumas. It's a heart - warming story that shows a side of their relationship that we don't often see in the original series. It's full of tender moments between them.
There's also 'The Bond with Carlisle'. The OC in this one, Sophia, is a vampire hunter who falls in love with Carlisle. It's an interesting take as it goes against the normal dynamic. The story delves into how they overcome their differences and build a relationship. The fanfiction has detailed descriptions of their emotions and the struggles they face, making it a great read for Carlisle Cullen x OC fans.
The theme of protection also often comes up. Carlisle, being the ethical and caring vampire he is, may feel a strong sense of protecting Bella from various threats in the vampire world. Additionally, there can be a theme of self - discovery for Bella. Through her interactions with Carlisle, she might learn more about herself, her values, and her place in this strange new world she's been thrust into.
You can start by looking on fanfiction.net. It has a large collection of Twilight - related fanfictions, including many about Carlisle Cullen. Another good place is Archive of Our Own (AO3). It has a wide range of fan - created stories, and you can easily search for Carlisle Cullen fanfiction there.
One common theme is the exploration of a forbidden relationship. Since Carlisle is much older and in a different position in the vampire hierarchy compared to Bella, it creates an interesting dynamic. Another theme is the idea of mentorship. Carlisle often acts as a mentor figure to Bella, guiding her through the vampire world.
The theme of sacrifice often appears. Carlisle may have to sacrifice his principles or his position in the vampire community for Bella. And Bella might sacrifice her normal human life for Carlisle. Also, the theme of self - discovery is common. As Bella gets involved with Carlisle, she discovers new aspects of herself, like her ability to adapt to the vampire world. And Carlisle discovers new emotions and a different way of loving through his relationship with Bella.
Characterization is key. A good Carlisle Cullen x OC fanfiction should have a well - developed OC. The OC should have unique traits, not just be a generic character. For example, if the OC has a special ability or a distinct personality that interacts interestingly with Carlisle's calm and noble nature. Also, the relationship between them should develop realistically. It can't be love at first sight without any proper build - up. They should have shared experiences, conversations, and challenges that bring them closer together.
Well, it depends on the context of the fanfiction. Maybe Carlisle bites the reader to save their life. If that's the case, the reader would then be transformed into a vampire. They would likely be under Carlisle's guidance as he is known for his self - control and moral code. The reader could potentially become a part of the Cullen family, which has its own set of rules and relationships to navigate.