Friendship is also likely to be a theme. Even if it starts as a simple friendship in the fanfic, it can gradually transform into something deeper. The fanfic might focus on how they support each other, have fun together, and overcome obstacles as friends, which then could lead to a more complex relationship.
One common theme could be friendship evolving into something more. Since they might start as friends in the original context, fanfics could explore how their relationship deepens romantically.
One common theme is the exploration of their family bond in a different way. Since they are siblings in the original show, fanfiction might play with the idea of a closer, more romantic - like connection while still keeping the family essence in a way. Another theme could be growing up together and facing challenges as a 'couple' within the family setting.
A common theme is family support. Since they are siblings in the Loud House universe, many fanfictions explore how they support each other within the family dynamic. For example, Lincoln might help Leni with her fashion business ideas, or Leni might be there for Lincoln during his school problems.
One common theme could be family drama. Given their relationship, there might be complex family - related issues explored in the fanfiction.
In leni x clyde fanfic, a prevalent theme could be the exploration of emotions. They might be trying to figure out their feelings for each other, which can lead to a lot of emotional turmoil and discovery. There could also be themes related to family and how their relationship fits into their respective family dynamics. For instance, how their families react to their growing closeness. Another possible theme is the power of support, where they support each other through difficult times, which strengthens their bond.
Well, friendship could be a theme. Their friends might play a role in how they deal with the pregnancy, either by offering advice or practical help. Also, personal growth is a likely theme. Both Lincoln and Leni may have to grow as individuals to handle the new situation. They might learn new skills or develop different aspects of their personalities to be ready for the upcoming changes in their lives.
I'm not sure about specific 'leni x lincoln fanfic' works. But you can try looking on some popular fanfiction websites like Archive of Our Own. They usually have a wide range of fanfics, and you might be able to find some about this pairing there.
Romance can be a theme as well, especially in fanfics that explore a more developed relationship between them. It could be about their first crush on each other, or how they gradually realize their feelings are more than just friendship. Some fanfics might also touch on themes of self - discovery, where through their relationship, they learn more about themselves and what they want in life.
One common theme is growth. Lincoln and Lily often grow as individuals through their relationship. Another is family support, as they rely on each other within the family dynamic.
One common theme is mutual understanding. Since they have different personalities, the fics often explore how they come to understand each other better. For example, in many fics, Lincoln learns to appreciate Lucy's gothic nature.