Katherine turning Elena into a vampire changes her life in many ways. For one, Elena's diet changes. She has to resist the urge to feed on humans. Socially, she becomes an outcast among normal humans. Her perception of the world also changes. She starts to see the vampire society in a different light and has to find her place within it.
A common theme is the struggle for power. Since both are strong - willed characters, many fanfictions explore who is more powerful or how they vie for power in different situations.
There are quite a few. Since Elena and Katherine are such iconic characters in the Vampire Diaries universe, fans often like to create their own stories about them. Some fanfiction might focus on a romantic relationship between them, while others could explore how they interact in different scenarios than in the show.
Elena is often portrayed as the more innocent and selfless one in fanfiction. She usually acts out of love for her friends and family. Katherine, on the other hand, is more self - serving. For example, in many stories, Elena will sacrifice herself for others, while Katherine will look for ways to save herself first.
One great fanfiction is 'The Doppelganger Dilemma'. It delves deep into the complex relationship between Elena and Katherine. It shows how their different personalities and experiences as doppelgangers create a unique dynamic. The story has some really interesting twists where Elena starts to understand Katherine's actions more, and Katherine, in a strange way, starts to protect Elena.
Another theme is power struggle. Since both Elena and Katherine have their own strengths and agendas, a lot of fanfictions play around with who has the upper hand in different situations. For example, in some stories, it might be about Katherine trying to outwit Elena in a battle of wits. And in others, it could be Elena using her newfound powers to stand up to Katherine.
She might want to manipulate Elena. Katherine is known for her devious ways, and by sharing her story, she could be trying to gain Elena's trust or sympathy for her own purposes.
In Vampire Diaries fanfiction, Elena is portrayed as the sweet and loving character. She values her relationships and is very empathetic. For instance, she'll comfort her friends when they are in trouble. Katherine, in contrast, is more of a survivor. She has a long history of manipulating people to stay alive. She might use her charm to deceive others, while Elena would use her charm in a more sincere way to build relationships. This difference in their personalities makes for some interesting storylines in fanfiction.
Jealousy could be one motive. Maybe Katherine is jealous of Elena's popularity and relationships, so she turns her into a vampire to make her life as difficult as hers. Another motive could be power. By turning Elena, Katherine might be trying to gain some sort of control over her or use her for her own plans.