One common theme is the bond between the sisters. Even as babies, they have a special connection that is often explored in these fanfictions. For example, how they comfort each other when they are scared or how they share their little joys.
One common theme is sisterly love. The kiss is often used to show the deep and unbreakable bond between them.
Another common theme is ruling the kingdom together. Fans like to write about how Elsa and Anna, as a married couple, use their combined powers and wisdom to lead their people. For example, they might face a new threat to the kingdom and have to work together to overcome it. There are also themes about family, as they are now part of a new family unit. They might be thinking about having children or taking care of the family they already have within the castle.
One common theme is the internal struggle of Anna. Since she secretly loves Elsa, she often has to deal with her own emotions and the fear of how Elsa will react. For example, in some stories, Anna might be afraid that her feelings will damage their sisterly bond.
One common theme is family. It shows how Jack and Elsa form a family with their baby and all the love and care that comes with it. Another theme can be the combination of their powers in the baby. Their baby may have a unique blend of Jack's wintery powers and Elsa's ice powers.
One common theme is family. The stories often focus on how Elsa and Jack build their family with the new baby, and all the joys and challenges that come with it.
Sisterly love is a very common theme. Since Anna and Elsa are sisters, these fanfics often focus on how deep their bond is and how far Anna will go to save Elsa because of that love.
One common theme could be the exploration of their relationship in a new light. It might involve them overcoming the challenges that their new relationship might face within the context of the story's world. Another could be the discovery of new feelings for each other.
One common theme is sisterly love. Writers often explore the deep bond between Elsa and Anna, how they support and care for each other through various challenges. Another theme is self - discovery. For Elsa, it could be about further exploring and controlling her powers, and for Anna, it might be about finding her own place in the kingdom. Adventure is also a theme, like going on quests outside of Arendelle to help others or solve mysteries.
Love is a very common theme. It shows how Anna and Bates' love for each other extends to their love for their baby. Their relationship becomes even more profound as they share the experience of raising a child.
One common theme is the adjustment to motherhood. Elsa, being a powerful character, might have to learn how to balance her powers with taking care of a baby. Another theme could be the relationship between Elsa and the baby's father, if there is one in the fanfiction. Also, the protection of the baby from any threats, real or imagined, within the fictional universe.