One popular plotline could be the challenges they face as new parents. Maybe the baby has some special powers inherited from them, and they have to protect the baby from those who might want to use those powers for evil. Another could be a more comical one where Killian is completely clueless about baby - care at first, but Emma finds his attempts endearing.
Well, having a baby changes everything. They now have a shared purpose that is bigger than just themselves. Their relationship shifts from a more romantic - adventure - based one to a more stable, family - centered relationship. There's more planning involved in their lives. They might not be as impulsive as they used to be because they have to think about the baby. Their relationship also becomes more public in a way, as the people around them start to see them as a family unit, and they have to deal with the expectations and joys that come with that.
Another common theme is growth. Both Emma and Killian grow as individuals and as a couple. Parenthood forces them to face new challenges and they develop new skills and understanding. For example, Killian might become more patient and Emma more nurturing.
Love is also a big theme. The love between Emma and Killian grows deeper with the presence of their baby girl. And of course, their love for their daughter is central. There are often sweet moments of them expressing their love for the baby. For instance, Killian whispering words of love to the baby girl while she sleeps. Another theme is growth. Both Emma and Killian grow as individuals as they take on the responsibilities of parenthood. They learn new things about themselves and each other. This is often shown through their interactions with the baby girl, like when Emma realizes she can be more patient because of her daughter.
Well, perhaps Killian could be a stranger who stumbles upon baby Emma. He might be instantly charmed by her innocence. Maybe he has some sort of premonition that she will grow up to be an important person in his life. He could then decide to protect her from any harm in the area, starting a connection that would later develop into a more complex relationship as Emma grows up.
Obviously, Killian and baby Emma are the main characters. Killian could be a character with a mysterious past, and his encounter with baby Emma might be a turning point in his life. Baby Emma, being so young, represents potential and new beginnings. The story might focus on how Killian's actions towards the baby shape both their futures, and we could expect other secondary characters to interact with them as the story progresses.
One interesting Killian and Emma baby fanfiction could be about their journey of becoming parents. It might show how they adjust their lives to take care of the baby, like Killian learning to change diapers and Emma dealing with sleepless nights. The story could also involve their friends in Storybrooke helping them out and giving advice on parenting.
To develop their relationship, you could have a scenario where Killian Jones is tasked with looking after young Emma for a short time. At first, they are both a bit wary of each other. But as time passes, Killian discovers Emma's love for stories and starts sharing his own. They also cook together, and in the process, they learn about each other's likes and dislikes. As they face a minor crisis in the village, like a small - scale monster attack, they realize how much they rely on each other and their relationship evolves from there.
One popular 'emma and killian baby fanfiction' is 'A New Beginning'. It beautifully portrays Emma and Killian adjusting to life with a new baby. The story focuses on their love growing even deeper as they face the challenges of parenthood together.
Archive of Our Own (AO3) is a great place to find Killian and Emma baby fanfiction. It has a large collection of stories written by various authors. You can easily search for the specific tag related to Killian and Emma and their baby to find relevant stories.