Some fanfictions focus on their backstories. Carlisle's long history as a vampire and how he came to create his 'family' and Edward's transformation and early days as a vampire. The exploration of their moral compasses, especially given their vampiric nature, is also a popular theme. They both have a certain code they live by, and fanfictions often delve into how they uphold or struggle with it.
A lot of Carlisle Edward fanfictions explore the idea of them facing challenges together. It could be something like dealing with a new vampire threat in their territory. Also, their interactions with other members of the Cullen family in relation to their unique relationship are often explored. For example, how Carlisle's relationship with Edward affects his relationship with Bella.
One popular theme is their father - son relationship. Since Carlisle is Edward's adoptive father in the Twilight universe, exploring the depths of their bond, how they communicate, and their mutual understanding is a common theme. Another is their different views on the vampire lifestyle.
Another theme is their struggle with being vampires. They both have different ways of dealing with it, and fanfictions often delve into how they support each other in this aspect. For example, Carlisle's more pacifist approach might contrast with Edward's sometimes more impulsive nature when it comes to dealing with their vampiric instincts.
One common theme is the family dynamic. Carlisle being the patriarch, his influence on Edward and Bella's relationship within the family framework is often explored. For example, in many fanfictions, he helps them navigate the difficulties of being part of a vampire family.
One popular Carlisle and Edward fanfiction could be 'A Father - Son Bond Renewed'. It delves into their relationship, exploring how they deal with modern vampire challenges while maintaining their family values. Another might be 'Carlisle's Lessons', which focuses on Carlisle teaching Edward some ancient vampire wisdom.
The theme of sacrifice also appears frequently. Edward might sacrifice his own desires or safety for Carlisle, and vice versa. In some fanfictions, this is shown through them protecting each other from other powerful vampires or from the human world's threats. It's really interesting to see how these themes play out in different fan - created stories.
One common theme is the exploration of family dynamics. Since Carlisle is sort of the father figure in the Cullen family, fanfictions often look at how he accepts or influences Bella's relationship with Edward within the family structure.
Another theme is the struggle with their vampiric nature in the context of their relationship. How their immortality and unique vampire qualities affect how they interact and love each other. For example, some fanfictions explore how they deal with the concept of time and change over the centuries.
One common theme is the exploration of their forbidden love. Since they have a father - son - like relationship in the original series, the fanfiction often delves into how they overcome this social and moral boundary. Another theme is the power dynamic, as Carlisle is older and more experienced in the vampire world compared to Edward.
One common theme is loyalty. Carlisle and Edward have a strong loyalty to each other and to their family. In many fanfictions, this loyalty is tested, for example, when faced with threats from other vampires or when making difficult decisions that could affect the family. Another theme is the struggle with their vampire nature. Carlisle, being more in control, often tries to guide Edward through his own internal battles.
Another theme is the moral and ethical aspects. Carlisle has strong moral beliefs, and in fanfiction, this can clash or align with Bella and Edward's relationship. For instance, some stories might explore how Carlisle's medical ethics come into play when dealing with Bella's transformation or the consequences of their relationships in the vampire - human world.
The theme of self - discovery is quite prevalent too. Bella is often portrayed as a character who is on a journey of self - discovery, especially when caught between Carlisle and Edward. This includes understanding her own feelings, her place in the vampire - human world, and her future with either of them.