In this fanfic, perhaps Ahsoka might use their past connection. She could remind Vader of the good in him, of Anakin Skywalker. By showing him that there is still a chance for redemption and by appealing to the remnants of his former self, she starts to turn him good.
In the Star Wars universe, such a scenario would be highly complex and out of the ordinary. Ahsoka has a deep connection with the Jedi teachings, and Darth Vader is on the dark side. If she were pregnant, it would likely be a situation full of moral and ethical dilemmas. She might struggle with protecting the child from the Sith and Vader's influence, and also deal with how the Jedi Order would react, as they have strict rules about relationships and attachments.
One common theme is redemption. Writers often explore the idea of Darth Vader being redeemed through his connection with Ahsoka. Another theme is the struggle between the light and dark side, as Ahsoka represents the light and Vader the dark. Also, the theme of broken relationships is present, given their past as master - apprentice.
One good 'Vader protects Ahsoka' fanfiction could be where Vader has a moment of clarity about his past with Ahsoka and decides to shield her from the Emperor's wrath. Maybe he secretly diverts Imperial forces that are after her.
In some fanfictions, their relationship develops through a series of battles. Each encounter makes them more aware of the other's strength and weaknesses. For example, Vader might initially see Ahsoka as a mere nuisance but as they fight more, he starts to respect her skills, which in turn makes him question his own choices more deeply. And Ahsoka, she begins to understand the depth of Vader's fall and feels a sense of sorrow for him.
Well, in Darth Vader and Ahsoka fanfiction, the dynamic between them can be really interesting. Ahsoka knew Anakin, and now facing Darth Vader, she has this internal struggle. Fanfic writers may show how she grapples with the fact that the person she once looked up to is now a Sith. And Vader, he may have some remnants of his feelings for Ahsoka from his Anakin days, which could lead to some very emotional and action - packed scenes in the fanfiction.
One great 'Ahsoka Vader fanfic' is 'The Meeting'. It delves into a possible encounter between them, filled with tension and unspoken history. Another good one could be 'Ahsoka's Choice' which explores how Ahsoka might react to facing Vader, her former master in a new, dark form.
Yes, there are likely some fanfics with this concept. Fanfic writers often explore unique and alternative storylines. They might be interested in exploring what would happen if Ahsoka, who was Anakin Skywalker's apprentice, ended up in a situation where she worked for Darth Vader (Anakin's Sith persona). It could involve complex character dynamics and a re - imagining of the Star Wars universe.
In a 'Ahsoka meets Darth Vader' fanfiction, there could be an intense battle. Ahsoka, with her Jedi skills, would be a formidable opponent to Vader. Maybe she tries to redeem him, recalling the Anakin she once knew. Or perhaps Vader sees her as a threat to the Empire and attempts to eliminate her quickly.
Well, one possibility is that Ahsoka tries to redeem Vader. She might see a glimmer of Anakin still in him and strive to bring him back to the light side. It would be a very emotional encounter, full of memories of their past as master and apprentice.