Can you recommend some good 'Adventure Time Finn Butt Fanfic'?

Sure. One popular 'Adventure Time Finn' fanfic is 'Finn's New Quest'. It takes Finn on an exciting adventure in a new part of the Land of Ooo that wasn't explored much in the show. Another great one could be 'Finn and the Lost Friendship' which delves deep into Finn's relationships and how he overcomes challenges in maintaining them. There are also many on fanfic websites like Archive of Our Own that are worth checking out.

One common theme could be friendship. Finn's relationships with other characters in Adventure Time might be explored in relation to this 'butt' aspect in a humorous or unique way. Another theme could be adventure itself. How Finn's adventures are affected or related to this particular idea.

Well, there's this fanfic called 'Finn and PB: A Different Kind of Friendship'. It shows a side of their relationship that isn't always explored in the show. It's really about how they support each other in different situations. And then there's 'The Adventure of Finn and Princess Bubblegum'. This one is more action - packed, with them facing off against new villains and protecting the Candy Kingdom together.

One popular 'Adventure Time Ice Finn Fanfic' is 'Frosty Adventures of Ice Finn'. It takes Finn in his ice form on a journey through the Ice Kingdom, facing new challenges and making strange allies.

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.

There's also 'Finn and Marshall's Great Adventure'. In this fanfic, they go on a journey through the Land of Ooo together. It's full of action and humor. The author does a great job of showing how their different personalities complement each other during the adventure. They face various challenges that really test their friendship.

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.

Sure. 'Finn and Marceline: The Nightmare Realm' is an interesting one. In this fanfic, they get trapped in the Nightmare Realm and have to fight their inner demons while also relying on their bond to escape. And then there's 'The Crimson and the Hero' where Finn and Marceline team up to face a new threat to Ooo that is related to Marceline's vampire past. It shows how their different personalities work together in a time of crisis.

One popular Finn Adventure Time harem fanfiction is 'Finn's Multiple Journeys'. It explores Finn having different adventures with multiple characters in a harem - like scenario. Another is 'Finn and His Friends in a New World' which also has elements of a harem concept with Finn interacting in unique ways with various characters from the Adventure Time universe.

One great piece of Adventure Time Dragon Finn fanfiction is 'The Dragon's Bond'. It delves deep into Finn's relationship with his dragon side, exploring how he balances his human nature with the newfound dragon powers. Another is 'Finn's Dragon Adventure', which takes Finn on an epic journey where his dragon form is crucial in facing various challenges in the Land of Ooo. And 'Dragon Finn and the Magic Crystal' shows Finn as a dragon protecting a powerful crystal from the evil forces in the land.