Power and power struggles can be a theme as well. If one sister has a special power or is turned into a vampire or a witch, it can create a power dynamic between the sisters. Some fanfictions explore how they handle this, whether they use their powers to protect each other or if there are jealousies and rivalries. Also, the theme of redemption can come up. If a sister has made mistakes in the past, perhaps by getting involved with the wrong vampires, she may seek redemption through her relationship with her sister.
One common theme is loyalty. Sisters in the fanfiction often show unwavering loyalty to each other despite the supernatural challenges they face. Another is sacrifice. They might be willing to sacrifice their own happiness or safety for their sister. For example, in many stories, a sister will put herself in danger to protect her sibling from a vampire or a witch's curse.
Family secrets are also a prevalent theme. In 'Vampire Diaries' fanfiction about sisters, there are often hidden family secrets that the sisters uncover. These secrets can change their understanding of their family history and their own identities. And of course, love is a big theme too. Not just sisterly love, but also romantic love that can sometimes complicate the sister relationship, like when they both fall for the same vampire or other character in Mystic Falls.
One common theme is family loyalty. The sisters often have to stick together in the face of the many threats in the vampire - filled world. Another is power struggles. The sisters may have unique powers that others want to control or use for their own gains.
Love is also a common theme. It could be romantic love for her character or platonic love within the family. In some fanfictions, Klaus's sister falls in love with a character from the show, and this love story is intertwined with her relationship with Klaus. For instance, in 'Love and Blood', her love interest is a werewolf, which creates a lot of drama considering the vampire - werewolf dynamic in the Vampire Diaries.
One common theme is her struggle to fit into the world that has been turned upside down by the presence of vampires. She often has to deal with the danger that vampires pose to her and her loved ones while also trying to understand their complex nature.
Often, it can be a theme related to the exploration of forbidden or controversial relationships. In some fanfictions, the act of spanking might be used to symbolize a deeper, more complex emotional connection between the sisters. It could also be a way to add a bit of shock value and draw readers in, especially when exploring the darker or more edgy aspects of the Vampire Diaries world and the relationships between the sisters.
One common theme is the struggle for self - identity. Since the sister is compelled, she often has to fight against the actions she's forced to do and figure out who she really is outside of the compulsion.
A common plotline is the sister's adjustment to the new world she's come back to. Things might have changed a lot since she died, like new vampire lords or different witch covens in control.
Love is a very common theme. Reincarnation often brings back characters who had a strong connection in a past life, and their love story gets a new chance in the Vampire Diaries world. Another theme is redemption. Characters may get a second chance through reincarnation to make up for their past mistakes.
One common theme is the battle between good and evil. In both shows, there are clear lines between the heroes and the villains, and this is often explored in fanfiction. Another theme is the power of friendship and family. Characters in both shows rely on their friends and family members, and this is also a big part of the fan - created stories.
One common theme is protection. Since vervain is known to harm vampires in the Vampire Diaries, many fanfictions use it as a means of protection for the human characters. For example, a character might wear vervain jewelry to keep vampires at bay.
One major theme is the struggle between good and evil. In these fanfictions, we often see characters who are trying to do the right thing in a world full of dark and dangerous supernatural forces. Family also plays an important role. We see how family bonds are tested and strengthened in the face of all the chaos in the vampire - filled worlds. For example, the Cullen family in Twilight and the Salvatore brothers' relationship in Vampire Diaries are often explored further in fanfictions.