No. There are so many different takes on Finn and Marceline in fanfiction. Their relationship can range from a mentor - mentee type where Marceline imparts her wisdom to Finn, to a simple acquaintance - type relationship. Just because they are popular characters together doesn't mean all fanfictions will make their relationship romantic.
In fanfiction, their relationship could be developed by having them team up for a noble cause, like saving the Candy Kingdom from a new threat. During this mission, they face challenges that require trust and cooperation. Finn might learn to be more patient with Marceline's mood swings, and Marceline could come to appreciate Finn's unwavering optimism. Also, they could have a friendly competition that turns into a deeper understanding of each other's strengths and weaknesses.
It could strengthen their relationship. The shared experience of having a child on the way makes them more dependent on each other. They start to communicate more deeply about their fears and hopes for the future.
A Marceline and Finn kiss in fanfiction can be really interesting. It might show a different side of their relationship. Maybe in the fanfic, it's a moment of realization for both of them, a deeper connection that goes beyond their usual adventures. It could also be a turning point in the story, leading to new plot developments like them facing challenges together as a couple or dealing with how their friends react to this new relationship.
In fanfiction, their relationship could be developed by having them teach each other things. Finn could teach Marceline about his simple but effective survival skills, like building shelters or finding fresh water. Marceline, on the other hand, could teach Finn more about the complex magic that exists in the Land of Ooo. This exchange of knowledge would not only bring them closer but also make them respect each other more. Also, they could get into some light - hearted arguments about different ways of doing things, which would then lead to a better understanding of each other's personalities.
In one fanfiction, Finn and Marceline start off as friends who slowly realize their feelings are deeper. Finn, always the brave adventurer, begins to notice how much he misses Marceline when she's not around. Marceline, for her part, sees Finn's kindness and courage in a new light. One day, during a dangerous adventure where they protect the Candy Kingdom together, they share a moment of closeness that makes their relationship shift towards love.
Finn's personality would probably become more brooding. The whole vampire thing is a big change, and he might start to withdraw a bit. He was always so full of energy and positive before, but now he could be more cautious and a bit more on the dark side. He might also become more territorial, like vampires tend to be.
Yes, there are some out there. You can try searching on popular fanfiction websites. Some might focus on the idea of Finn and Marceline having a baby in an alternate universe where their relationship has developed in that direction. They could be dealing with the challenges of raising a child in a post - apocalyptic world like in the 'Adventure Time' setting.
I really like 'Finn and Marceline's Unlikely Alliance'. It shows a unique take on their relationship where they start off as reluctant partners but end up having a strong bond. There's also 'Marceline's Song for Finn' which is a more emotional fanfiction that focuses on Marceline's feelings towards Finn through her music.
Yes, there are quite a few out there. You can start by looking on fanfiction websites like Archive of Our Own. Some fanfictions might focus on different scenarios leading up to the kiss, like an adventure they go on together which deepens their bond and results in that special moment.
Often, in Marceline loves Finn fanfiction, there's a strong sense of the contrast between their personalities. Finn is usually very optimistic and straightforward, while Marceline is more complex and a bit brooding. This contrast creates interesting dynamics in the stories.