In a 'kol kidnaps elena fanfiction', Kol might kidnap Elena as part of a larger plan to disrupt the balance in Mystic Falls. He could see Elena as a symbol of the order that he wants to break. Kol may take her to a remote location, and as Elena tries to escape, she discovers that Kol has some unexpected motives. Maybe he is actually trying to protect her from a greater threat, but his methods are extreme. And throughout the story, there would be a lot of tension between them as Elena tries to figure out his true intentions while also trying to get back to her friends.
Well, in a 'kol kidnaps elena fanfiction', perhaps Kol kidnaps Elena because he believes she holds the key to some ancient power or secret. He might have discovered some old prophecy that involves her and decides to take matters into his own hands. He could be trying to force her to help him unlock this power, which could lead to a series of events where Elena has to outwit him while her friends search for her.
One possible plot could be that Kol kidnaps Elena to use her as bait for his enemies. He might think that by having Elena in his custody, her friends, especially the Salvatores, would come to rescue her and he could then ambush them. Another idea is that Kol has some sort of vendetta against Elena because of her connection to the doppelganger bloodline. So he kidnaps her to extract revenge on the entire line.
The Salvatores, Damon and Stefan, are likely candidates. They have always been protective of Elena and would do anything to save her. They could use their vampire skills and knowledge of Kol's weaknesses to stage a rescue.
The plot might involve Kol falling in love with Elena. Kol, being the wildcard among the Originals, could try to win Elena over in his own unique way, which might create a lot of drama with the other characters like Damon and Stefan who are also interested in Elena.
One possibility is that Stefan is under some dark spell or influenced by an evil force. Maybe he kidnaps Elena to protect her from a greater danger that he believes only he can handle, but his actions are misinterpreted. For example, there could be a new vampire hunter in town who has a special weapon that can kill vampires instantly, and Stefan thinks the only way to keep Elena safe is to take her to a hidden location.
One possible plot could be that Kol, being the charming and somewhat dangerous vampire he is, initially catches Elena's eye in a moment of unexpected encounter. Maybe at a supernatural gathering. He starts to show her a different side of the vampire world, full of ancient secrets and forgotten powers. This new perspective intrigues Elena, and as they spend more time together, they develop feelings for each other despite the many obstacles like the existing relationships Elena has and the disapproval from other vampires and her friends.
One possible plot could be that Kol and Elena meet by chance in a place outside of Mystic Falls. They initially clash due to their different personalities and pasts. Kol is intrigued by Elena's tenacity and her kind heart despite all she has been through. As they are forced to spend more time together, perhaps because of a common threat, they start to understand each other better. Elena begins to see Kol not just as one of the bad guys but as someone with his own complex story. Their love could develop gradually as they share their secrets and fears, and finally, they realize they are in love.
Perhaps Katherine kidnaps Elena out of jealousy. Elena has the love and attention of many people that Katherine once had or desired. So, Katherine might take Elena to a remote location, taunt her about all the things she doesn't have, and try to make her feel inferior. In this fanfiction, Elena could then try to outwit Katherine using her own wits and the help of her friends she manages to contact secretly.
The other vampire clans might be antagonists. They could see the baby as a threat to the vampire hierarchy or fear that the baby will have powers that could disrupt the balance among vampires. For example, the Originals' siblings who don't trust Kol might try to stop Elena from having the baby.
One plot idea could be that Kol kidnaps Caroline because he wants to use her as bait to draw out Klaus. He might think that Klaus has a soft spot for Caroline and will come running to save her. Another idea is that Kol is actually in love with Caroline in his own twisted way and kidnaps her to force her to see his side of things, away from the influence of her friends in Mystic Falls.
One possible storyline could be that Kol and Elena's relationship starts in a rather unexpected way. Maybe they are forced to work together to defeat a common enemy in the supernatural world. During this time, they gradually develop feelings for each other. And when they find out Elena is pregnant, they face a lot of challenges. Some vampires might oppose their union because of Kol's past actions. But they decide to fight for their family and the future of their baby.
I'm not sure specifically as it depends on the particular fanfiction. It could be a story where a character named Kol kidnaps Bonnie within the universe of the show or book that the fanfiction is based on. Maybe it's part of a complex plot involving magic, power struggles, or personal vendettas.