One common theme is love and longing. Since Calypso was stuck on the island and had feelings for Percy, many fanfics explore the depth of those feelings and Percy's possible reciprocation. Another theme is adventure. They often go on new adventures together in fanfics.
The theme of redemption is also quite common. Calypso might be seen as seeking redemption for things she's done or for her situation. And of course, the theme of destiny. Whether their relationship was fated or not is often explored in these fanfics. Also, there's the theme of isolation, as Calypso was isolated on her island for so long and how Percy changes that state.
One common theme is the idea of freedom. Calypso is trapped, and Percy might be the key to her freedom. Another theme could be love against all odds. Given Percy's existing life and Calypso's situation, their relationship is not straightforward. Also, self - discovery can be a theme. As they interact, both Percy and Calypso might learn more about themselves.
The theme of second chances pops up a lot. Since Percy left Calypso once, many fanfictions explore the idea of giving their relationship a second chance. Another is the power of the gods. The gods' influence on their relationship, whether it's Zeus' curse on Calypso or Poseidon's influence on Percy, is a recurring theme. And finally, the theme of sacrifice. There are instances where either Percy or Calypso has to sacrifice something for the other, like Calypso sacrificing her chance at freedom for Percy or Percy sacrificing his own desires for the greater good which affects their relationship.
One common theme is redemption. Calypso has been through a lot, and in fanfiction, Percy often plays a role in her redemption or finding a new purpose in life. For example, in many stories, he helps her see the world outside her island in a new light.
One common theme is longing. Calypso is often depicted as longing for Percy after he leaves her island. Another theme is sacrifice. Percy may have to sacrifice his own desires or plans to be with Calypso. For example, in some fanfictions, he has to give up his quests to stay with her.
One common theme is the clash of different cultures. Naruto comes from a world of ninjas with its own set of values and traditions, while Calypso is from a more myth - based world. So, the fanfics often explore how these two different cultures interact.
Friendship is a common theme. Since Calypso and Piper are from different backgrounds, their journey of becoming friends is often explored.
Love and acceptance are common themes. Since Leo and Calypso come from different worlds, their journey towards accepting each other's differences and falling in love is often explored.
One common theme is the exploration of their relationship. Given their different backgrounds in the Percy Jackson universe, how they interact and grow closer is often a focus. Another theme is adventure. They might go on quests together, which is in line with the overall adventurous spirit of the original series.
One common plot point is that Percy discovers Calypso is in some sort of peril, like being trapped on an island or held captive by a powerful enemy.
One common theme is adventure. Since both Leo and Calypso have had eventful lives, fanfics often put them in new and exciting adventures together. Another theme is love and its challenges. Their relationship is not always smooth, and fanfics explore how they overcome obstacles in their love.