A theme that pops up a lot is the struggle between the light and the dark. Cal represents the light side, and Trilla has been on the dark side. Fanfics often show how they deal with this contrast and how it affects their relationship. Also, the theme of trust is important. Since they are on different sides originally, building trust is a big part of their story in these fanfics.
There's a fanfic called 'Trilla's Redemption through Cal'. In this one, it shows how Trilla, with Cal's influence, might find a way to break free from the dark side. It's a really interesting take on their relationship, as it not only focuses on their romantic potential but also on their personal growth.
A different plot could be that they are both on a mission to uncover a hidden truth about the Force. Along the way, they are forced to rely on each other's skills. Cal starts to teach Trilla about a different perspective of the Force, and as they bond over this knowledge, they are drawn to each other and finally kiss as a culmination of their emotional journey.
You can try looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms often have a wide variety of fan - created stories, including ones about Cal and Trilla having a kiss. Just use the search function on the site and type in relevant keywords like 'Cal and Trilla kiss' to narrow down your search.
There is a 'cal and trilla fanfic' that focuses on their backstories and how they came to be the characters they are. It delves deep into their pasts, including their training and early experiences. This gives readers a better understanding of their motives and personalities in the present. By exploring their origins, the fanfic creates a more complex and engaging narrative around them. It also shows how their pasts have shaped their relationship with each other.
One idea could be a story where Cal and Trilla have to team up against a new, powerful dark side threat. They start off distrusting each other due to their past but gradually learn to work together and in the process, discover new things about the Force.
Their relationship could develop through shared experiences. For example, they both have had to deal with the fall of the Jedi Order in different ways. By sharing these stories and the emotions associated with them, they can form a bond. Also, if they are forced to rely on each other in dangerous situations, it can strengthen their connection.
Well, it could be the unique dynamic between Cal and Merrin. Their personalities might interact in ways that are exciting to explore in fanfic. Maybe Cal's determination combined with Merrin's mysterious nature creates interesting storylines.
Fanfiction.net is also a place to look. There are many different categories and tags. Search for Merrin x Cal, and you might come across some interesting stories. However, the quality can vary, so you may need to read a few to find the really good ones.