Perhaps Theo kidnaps Lydia because he's being controlled by some other force. He doesn't really want to harm her but can't resist the compulsion. Lydia, during her captivity, tries to find a way to break the control over Theo. She might use her banshee powers in a new and unexpected way to free both of them from the situation.
Another plot could be that Theo kidnaps Lydia as a way to get back at the McCall Pack. Since Lydia is an important member of the pack, taking her would be a major blow. As she's held captive, Lydia discovers Theo's deeper motives which are related to some past event involving her friends. This could lead to a tense stand - off when the pack comes to rescue her.
It could also be an unseen force controlling Theo. In this case, the real antagonist is this hidden entity that uses Theo to kidnap Lydia. The story could then be about Lydia and her friends not only rescuing her from Theo but also uncovering and defeating this greater threat.
One possible plot could be that Theo kidnaps Stiles to use him as a bargaining chip with the pack. Maybe Theo wants something from Scott, like the alpha power or a powerful artifact that the pack has in their possession, and he thinks Stiles is the key to getting it.
It could also be for power. Perhaps Stiles has some knowledge or ability that Theo wants to use for his own gain. In the show, Stiles was quite smart and resourceful, so Theo might kidnap him to get access to that intelligence or those skills. In some fanfictions, Theo might be trying to use Stiles as a bargaining chip to get something from the other characters like Scott or Derek.
One possible plotline could be that Stiles' friends immediately start a search. They might follow clues like strange footprints or a mysterious note left behind. Another could be that Stiles manages to outwit his kidnappers in some way while being held captive, perhaps by tricking them into revealing their weaknesses. Maybe the kidnappers are after something Stiles knows, like a secret about the supernatural world in the fanfiction's setting.
There's a fanfic called 'Stiles and Lydia: A New Beginning'. In this story, they start anew in a different town away from all the chaos. It's really refreshing to see them build a normal life together while still having that underlying supernatural connection. Also, 'Lydia's Choice' is good. It focuses on Lydia having to make some tough decisions regarding her relationship with Stiles and how it affects their future together.
Well, in Stiles and Theo kiss fanfiction, it often explores a different side of their relationship. Maybe it's a way to show a deeper connection that wasn't fully explored in the original show. It could be a creative way for fans to express their desires for these two characters to have a more intimate bond.
Title: 'The Abduction of Lydia by Theo'. In this fanfiction, Theo might have his reasons for kidnapping Lydia. Maybe he believes she holds the key to some power or knowledge he desperately wants. He could be a complex character, not entirely evil, but driven by his own motives. Lydia, on the other hand, would be a strong - willed victim. She'd use her wits to try and outsmart Theo, leading to a tense cat - and - mouse game throughout the story.
Perhaps Stiles is killed as a sacrifice in a dark ritual. His death could be part of a much larger conspiracy. His friends might start seeing strange visions of him after his death, which they initially think are just their minds playing tricks on them, but later realize are actually Stiles trying to communicate from the afterlife to help them stop the forces behind his death.
One great Stiles x Theo fanfiction is 'The Unexpected Bond'. It delves deep into their relationship, starting from their initial animosity and gradually evolving into something more. The character development in it is really well - done.
A great one is 'Kiss in the Moonlight'. Here, the setting for their kiss is really beautiful. It takes place during a full moon while they are alone in a forest clearing. The author describes the atmosphere in great detail, making the kiss seem even more magical. The story then continues to explore how this kiss changes their relationship dynamics, both in the romantic sense and in how they face challenges together in their supernatural - filled world.