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.
A great topic would be Ahsoka's role in restoring peace and justice in the galaxy. You could also focus on her growth as a character from her early days as Anakin's Padawan to her independent and strong - willed self. Another idea is to write about her interactions with different species and how she learns from them.
In fanfiction, Ahsoka and Anakin can represent different things. Anakin, with his powerful Force abilities and his tragic fall, can be a symbol of the consequences of unchecked emotions. Ahsoka, on the other hand, can be seen as a symbol of hope and redemption. Writers might use their interactions to show how these two opposing concepts can coexist and influence each other.
Ahsoka and Barriss could be on a mission together on a far - flung planet. During this mission, they face many challenges, like dealing with local hostile forces and difficult terrains. As they struggle through these difficulties, they grow to understand and respect each other more deeply. For example, Barriss might use her medical skills to heal Ahsoka when she gets injured, and Ahsoka could use her combat skills to protect Barriss from danger.
They might face the challenge of raising a child in a galaxy that is often at war. Finding a safe place to live and provide for the child would be difficult. Also, they have different heritages. Rex is a clone, and Ahsoka is a Togruta. Their child might face discrimination or confusion about their identity. They would need to figure out how to teach the child about both of their cultures.
Ahsoka resists mind break through her strong will. She has been through a lot as a Jedi, and that has toughened her mental state. Her connection to the Force also plays a big role. She can use it to shield her mind from external influences.
One aspect of Ahsoka in dark side fanfiction might be her change in appearance. She could start wearing darker robes and her lekku might even seem to have a more menacing look. Her fighting style would also likely change, becoming more aggressive and less about defense. Writers often explore how her relationships with other characters, like Anakin, would be affected. Anakin might be torn between trying to save her and seeing her as a threat.
One possible story could be Ahsoka leading the 501st in a daring rescue mission. She uses her unique skills and connection with the clones to outwit the enemy and save a group of civilians. The 501st, with their unwavering loyalty, follow her every command.
Ahsoka and the 501st could be in a story where they are sent on a secret mission to infiltrate an enemy base. Ahsoka disguises herself and the 501st clones use their stealth training to get in. Once inside, they have to find and destroy a powerful weapon that the enemy is developing.
Such fanfiction is not suitable. Star Wars, where Rex and Ahsoka are from, is a franchise that has a broad and diverse fan base. Creating or promoting sexual fanfiction about its characters disrespects the original intention of the story and can make many fans uncomfortable.