The relationship could develop in a complex way. Since Vader has captured Luke, there's a power imbalance. However, as they interact, Luke might try to reach out to the good in Vader. Vader, in turn, might be conflicted. He could start to protect Luke from the Emperor's harsher plans, leading to a strange alliance within the captivity.
In this fanfic scenario, the relationship would be full of turmoil. Initially, Luke would be angry and scared of Vader. But as Vader reveals some of his motives and his own internal struggles, Luke might start to pity him. Vader, realizing Luke's purity of heart, could begin to question his own actions. This could lead to a slow transformation in their relationship, from captor - captive to something more like mentor - student, with a lot of emotional and moral conflict along the way.
One possible plot in such a fanfic is that Vader has been ordered by the Emperor to capture Luke alive. He does so, but during the capture, Luke discovers some long - hidden secrets about his father. Vader, on the other hand, starts to have second thoughts about handing Luke over to the Emperor. This creates a complex dynamic between them, with Vader torn between his loyalty to the Emperor and his new - found feelings for his son.
In fanfiction, their relationship could develop more quickly towards mutual understanding. Maybe Luke could convince Vader to turn away from the dark side much earlier, and they could start training together as Jedi. This would be a huge shift from the original story.
Vader might initially be shocked. His son reaching out to him is unexpected. He could respond with a moment of silence, trying to process what is happening.
There's a fanfic titled 'Vader's Redemption'. In this story, Vader starts to question his loyalty to the Emperor much sooner, especially after some profound encounters with Luke. It's a great read as it shows the internal struggle of Vader while also exploring the bond between father and son in a new light. It's full of action-packed scenes and deep emotional moments.
This would be a huge twist. It might mean Luke is seduced by the dark side's power or has some ulterior motive for joining Vader. It could change the course of the entire story.
A good fanfic about Luke and Darth Vader should first and foremost have a strong understanding of the characters. They need to stay true to their personalities as seen in the movies. For example, Vader's internal struggle between the light and dark side should be well - represented. Also, a great plot that ties into the existing Star Wars mythology is important. Maybe it could involve a new threat that forces Luke and Vader to work together, or explore their relationship in a different time period.
Often through his internal thoughts. The fanfiction might describe Luke seething with anger whenever he thinks of Vader. For example, in some stories, when Luke is meditating, his thoughts are constantly interrupted by visions of Vader and his past actions, and he can't focus because of his hatred.
One reason could be that Vader represents the dark side which has brought so much destruction in the galaxy. Luke, being on the side of the Jedi and good, would naturally despise the evil deeds associated with Vader.
In certain fanfictions, Luke sees Darth Vader's fall symbolically. For example, he might see the destruction that Vader has caused on a planet or to a group of people. This destruction represents Vader's fall from grace. It could be that Vader has ordered the massacre of innocents, and Luke witnesses the aftermath. This makes Luke realize the true nature of the dark side that Vader has embraced and how far he has fallen from being a Jedi.
In some fanfiction, if Luke and Darth Vader teamed up, they could be an unstoppable force for good. They could use their combined Force abilities to fight against a greater evil in the galaxy. Maybe they would start by taking on the Emperor together, using Vader's knowledge of the Sith and Luke's purity in the Force.