One idea could be that their baby has a special power related to ice like Anna and Elsa. Maybe the baby can create beautiful ice sculptures at a very young age. This would add a new element to the Frozen world and also show how the family's powers are passed down.
You can try fanfiction websites like Archive of Our Own. There are often many different fanfictions about various characters and scenarios from Frozen, including those about Anna, Kristoff and their baby.
One great fanfiction could be where Anna and Kristoff's baby has a special connection to the magic of Arendelle. Maybe the baby can communicate with the spirits of the forest like Elsa. Another story might focus on the challenges of raising a baby in a kingdom with so much history and responsibility.
One plot idea could be that Anna and Kristoff get lost in a magical forest on their way back from a diplomatic mission. They have to rely on each other and their skills to find their way out while also facing strange creatures. Another could be a story where they have an argument over how to handle Elsa's new ice - related discovery, and it tests their relationship. Maybe a third idea is that Kristoff discovers a long - lost relative who doesn't approve of his relationship with Anna, and they have to work through that together.
In this fanfiction, the baby might be the key to uniting all the different tribes around Arendelle. Since Anna and Kristoff are from different backgrounds, their baby could symbolize a new era of peace and unity. For example, the Northuldra might see the baby as a sign of hope and start to work more closely with Arendelle.
One plot idea could be that Anna and Kristoff get into a big argument over how to handle a new threat to Arendelle. This causes a rift between them, but as they both separately try to solve the problem, they realize they need each other. Another could be a story where they go on a journey to a far - off land and discover a new magic that has an unexpected impact on their relationship. Maybe they find a magical flower that can show them their future together, but it also reveals some insecurities they both have.
There probably is. The Frozen fandom is quite large and diverse, so it's not surprising that there could be a fanfiction where Kristoff and Anna are pregnant. It could be an interesting read as it might explore how their relationship evolves with the new addition to their family on the way. Maybe it would also show how their friends in Arendelle react to the news.
One possibility in fanfiction is that they start a family right away. Kristoff would be a loving and protective father, teaching their children about the ways of the forest and ice. Anna would pass on her knowledge of the kingdom and how to rule with kindness. Their home would be a place full of love and laughter, with Sven often coming around to visit.
Olaf could be important. He might be like a fun - loving babysitter, always making the baby laugh with his goofy antics.
One possible plot could be that Anna discovers she's pregnant and she and Kristoff are overjoyed. But then they face challenges like how to keep Anna safe during her pregnancy in the sometimes - dangerous world of Arendelle. They might also worry about how to raise the child with all the responsibilities of ruling the kingdom.
One possible scenario could be that they share a kiss after a dangerous adventure. Maybe they were facing a powerful snow monster and Kristoff saved Anna. In the heat of the moment, filled with relief and newfound admiration, they kiss. Another could be during a celebration in Arendelle. After a successful harvest or a new alliance, the joy in the air leads to a spontaneous kiss between them.