Sure. There could be. Adventure Time has a large and creative fan base. Some writers might focus on the cute or comical aspects of Marceline and Finn's interactions. For example, they could write a story where Marceline gives Finn a friendly peck on the cheek as a sign of gratitude or camaraderie. It's all about how the writer interprets the characters' relationship within the framework of the show's light - hearted and fantastical world.
One great fanfic could be 'The Adventure Beyond the Nightosphere'. It shows Finn and Marceline going on an unexpected journey into Marceline's home realm, facing strange creatures and solving a mystery that endangers both their worlds. It has a great blend of action and their unique friendship dynamic.
Adventure is a major theme too. Since they are in the world of Adventure Time, they go on quests and have escapades. This theme allows for a lot of action and exploration in the fanfics. And there's also the theme of trust. As their relationship develops, they learn to trust each other more and more, which is a key part of their story.
I'm not sure of a specific 'lemon' fanfic as they often contain inappropriate content. But a great adventure - themed one is 'Finn and Marceline's Mysterious Quest'. In this, they team up to solve the mystery of a disappearing forest. It has great character development and an exciting plot.
One interesting fanfic could be about Finn and Marceline going on a musical adventure together. They might discover a new land filled with strange creatures that are only calmed by their combined music of Finn's upbeat tunes and Marceline's rock - like melodies.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfics for various fandoms, including Adventure Time. Just search for 'Adventure Time Marceline kisses Finn' in the search bar and see what comes up. Another option is Fanfiction.net, which also has a lot of Adventure Time fanfics.
One common theme is friendship. Finn and Marceline have a unique friendship that often gets explored in fanfiction. They come from different backgrounds, Finn being a human hero and Marceline a vampire, and how they bridge those differences in their friendship is a popular theme. Another is adventure. Since they live in the Land of Ooo, they often go on wild adventures together in these stories.
Yes, there are quite a few. You can find some on fanfiction websites like Archive of Our Own. Just search for 'Adventure Time Finn and Marceline love' and you'll get a bunch of stories, some exploring their relationship in different ways, like how they might have fallen in love during their adventures.
Another important aspect is the setting. Ooo is a vast and strange land full of different kingdoms and environments. You can create new places within Ooo or explore the less - known areas. When writing the fanfic, use vivid descriptions to bring these settings to life. Also, don't be afraid to add your own twists to their relationship, like a moment of misunderstanding that leads to a stronger bond in the end.
There's 'The Unlikely Friendship'. In this fanfic, it starts with Finn and Marceline being sort of at odds, but as the story progresses, they begin to understand each other better. It shows Finn's growth as he tries to see things from Marceline's perspective, and vice versa. It's a great read for those who like character - driven stories.