Perhaps in this fanfiction, the child has some sort of special power. Female Obi - Wan, Anakin, and Ahsoka must figure out what this power is and how to control it. Along the way, they have to deal with their own personal issues. Anakin might struggle with his fear of losing those he loves, while Ahsoka tries to prove herself as a capable Jedi. The female Obi - Wan could be the guiding force for them all.
One possible storyline could be that the female Obi - Wan discovers a lost child during a mission. Anakin and Ahsoka then help her take care of the child. They face many challenges like protecting the child from the Sith. As they do this, they also learn important lessons about family and loyalty.
One interesting storyline could be that Female Obi - Wan takes on a more maternal role towards Anakin and Ahsoka. She could be the one to help Anakin better control his emotions, which was a struggle in the original story. For Ahsoka, she could train her in a different way, perhaps focusing more on the spiritual side of the Force. This would change the dynamics of their relationships and lead to new adventures where they work together more harmoniously as a family unit.
The presence of a child would likely make their relationships more nurturing. Female Obi - Wan might take on a more motherly role towards the child, and Anakin and Ahsoka would be influenced by her example. They would become more protective of each other as they are all responsible for the child's well - being.
One possible storyline could be that Anakin, under the influence of the dark side, accidentally uses too much force during a training session with Ahsoka, physically hurting her. This could lead to a rift in their relationship as Ahsoka struggles to understand what happened and Anakin feels guilty.
One great storyline could be Anakin and Obi - Wan teaming up against a new Sith threat that is more powerful than they initially thought. They have to put aside their differences and combine their skills, with Obi - Wan's calm and calculated approach and Anakin's raw power. Another could be a pre -quel type of fanfiction where we see their early days of training together in more detail, like how they overcame certain challenges during their training sessions.
Some fanfictions might explore a situation where Anakin is being manipulated by a powerful dark force or a Sith Lord. This dark influence makes him see Obi - Wan as a threat to a grander plan. So, he kills Obi - Wan as part of this dark scheme, not fully in control of his own actions. And this can lead to a lot of complex emotions and plot developments later in the story, like Anakin's further descent into darkness and how the other characters react to Obi - Wan's death.
Female Obi - Wan might develop a more nurturing side. Instead of the more stoic Obi - Wan we know, she could be more openly affectionate towards Anakin and Ahsoka. Anakin, with this different influence, might not be as quick to turn to the dark side. He would have more emotional support. Ahsoka would grow to be more confident, as she has two strong role models in Female Obi - Wan and Anakin. She would be able to learn from their different styles of using the Force.
One interesting storyline could be exploring their relationship during Anakin's early days as a Padawan. It could show Obi - Wan's struggle to train a headstrong Anakin while also dealing with his own insecurities. Maybe there are adventures where they face a new Sith threat together and Anakin has to learn to control his emotions in the heat of battle.
In the fanfiction, it might be that Anakin has been poisoned. As the poison takes effect, he collapses into Obi - Wan's arms. Or perhaps Anakin has just learned some devastating truth about his past or the Jedi Order that shocks him to the point of physical collapse.
In many fanfictions, Obi - Wan might use his deep knowledge of the Force. He could reach out to Anakin through a Force - bond, calming his inner turmoil and guiding him away from the dark side. For example, he might remind Anakin of their past together, their training, and the values they once held dear.
One interesting storyline could be Ahsoka and Anakin going on a mission together that takes them to a mysterious and dangerous planet. They have to rely on each other's skills and the bond they share to survive.