Leia would be a mix of furious and calculating. She would be furious at being kidnapped by Vader, the symbol of the Empire's tyranny. But she would also be calculating, looking for ways to escape or send a signal to her allies. She might also try to get into Vader's head, using her knowledge of the Force (even if she is not as trained as Luke) to disrupt his thoughts or plans.
Leia would most likely be defiant. She has always been a strong and feisty character. She would probably resist Vader's every move and not be easily intimidated by his presence.
One possible plot development could be that Leia uses her wits to try and outsmart Vader during her captivity. She might attempt to manipulate the situation to her advantage, perhaps by feigning cooperation while secretly planning an escape. Another development could be that Luke and the Rebel Alliance launch a rescue mission. They would face numerous challenges, like penetrating Vader's stronghold and evading his forces. And Vader himself might be conflicted about his actions, given his relationship with Luke and the knowledge that Leia is his daughter, which could lead to some internal struggle within him.
Since 'lemon' often implies adult themes, it's not appropriate to discuss. But in general non - lemon fanfiction about them might have themes like family, redemption, and the power of the Force. For example, the theme of family is huge as Vader is Leia's father, and their relationship is complex.
Well, there might be some darth vader and leia fanfiction out there, but the 'lemon' tag usually indicates something more adult - themed. I would suggest looking for more general, family - friendly fanfiction about their relationship instead. For example, stories that focus on their complex family ties in the Star Wars universe without the sexual undertones. It would be more in line with the spirit of the original story and also more widely accessible.
One idea could be a story where Darth Vader discovers Leia's true identity earlier and struggles with his loyalty to the Empire and his newfound knowledge of his daughter. He could secretly protect her from the Emperor's wrath.
There might be some out there that are not overly adult - themed. However, in the official Star Wars lore, their relationship is one of enmity. Fanfiction that doesn't cross into inappropriate territory could explore different aspects like an alternate universe where they have to work together against a greater threat, perhaps with Leia trying to understand Vader's fall to the dark side in a more empathetic way.
In fanfiction, if Luke and Leia were captured by Vader, one possible scenario could be that Vader tries to turn them to the dark side. He might use his knowledge of their true parentage as a tool, revealing it in a way that shakes their beliefs. Maybe he offers them power and a place by his side in ruling the galaxy.
They could use the Force to overpower their captors. Luke is quite strong in the Force and together with Leia, they might be able to create a distraction and break free.
One idea could be that Darth Vader discovers his connection to Leia earlier and secretly tries to protect her from the Emperor's more sinister plans. He might use his position within the Empire to subtly divert threats away from her.
In some fanfiction, there could be a scenario where Leia discovers her connection to Darth Vader much earlier. Maybe she has a vision or some sort of Force - related encounter that reveals the truth. This would lead to a very different dynamic in the story as she grapples with this knowledge and how it affects her fight against the Empire. For example, she might try to reach out to the good in him, creating an internal struggle for Vader between his loyalty to the Emperor and his newfound connection to his daughter.
If Darth Vader raised Luke and Leia, Luke could be more introverted. He'd have to constantly grapple with the knowledge of his father's actions and his own potential for darkness. His training would be intense, and he might be less likely to trust others easily. Leia would be a more complex character. She would have a love - hate relationship with Vader. On one hand, he's her father, but on the other, he represents everything she hates about the Empire. This would make her personality more unpredictable, sometimes showing compassion towards Vader and other times being extremely hostile.