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.
There's a fanfiction titled 'Sister's Compulsion: A Vampire Diaries Tale'. In this one, the sister character is compelled to do various things that have far - reaching consequences in the world of Mystic Falls. The author does a great job of staying true to the feel of the Vampire Diaries while adding their own unique twists.
A common plot element is the mystery surrounding the amnesia. Usually, the 'ofc' (original female character) has no memory of important events, and the vampires in the story are often involved in either causing or trying to reverse it. For example, a vampire might have compelled her to forget something crucial, and the story then unfolds as she tries to piece her past back together.
Well, you can try searching on fanfiction websites like Archive of Our Own. There are likely many stories with this theme there. Just type in the relevant keywords in the search bar and browse through the results.
One popular 'Ofc Compelled Kidnapped Vampire Diaries' fanfiction might be the one where the original female character (Ofc) gets caught up in a power struggle between two vampire factions after being compelled and kidnapped. It often delves into her struggle to break free from the compulsion and survive in the dangerous vampire world.
Well, Damon Salvatore is often involved. Given his complex and sometimes dark nature, he could be either the one doing the compelling and kidnapping or the one trying to rescue the Ofc. Also, Stefan Salvatore might be in the story, perhaps as a moral compass or as someone who has a connection to the Ofc's situation.
One plot idea could be that the sister, after being drugged, has some sort of psychic connection with the vampires in The Vampire Diaries world. Maybe she can see their memories or feel their emotions, which leads to a series of adventures where she tries to use this new - found connection to help or hinder the vampires' actions.
The drugged sister could start off as a very vulnerable character. But as the story progresses, she could develop a sort of inner strength. For example, she might initially be terrified of the vampires and the strange things she's experiencing due to the drug. But then, she could learn to use the drug - induced changes in her perception to her advantage, like being able to sense when a vampire is near even before they show up.
Well, the theme of redemption can be found in many 'Ofc Reincarnated Vampire Diaries Fanfiction'. Maybe the Ofc had a dark past life and now in her reincarnation, she is trying to make up for it. This can be intertwined with the relationships she forms, especially with the morally ambiguous characters like Damon. Also, the exploration of the afterlife and the cycle of reincarnation itself is a theme. How does one come back? What are the rules of this reincarnation? These are questions that often pop up in such fanfictions, adding a layer of mystery and intrigue to the story.
Well, in these fanfictions, the autistic ofc can add a new layer of depth to the relationships. For example, her way of thinking and perceiving the world of vampires, werewolves, and witches might be different from the norm. This can lead to unique character dynamics, like how she might form alliances or fall in love in ways that the original series didn't explore much. Also, it can be a great way to raise awareness about autism within the context of a popular fictional world.