A frequent trope in such fanfics could be the 'shared trauma' trope. The siblings might have experienced something really horrible in Gravity Falls, like an encounter with a particularly evil creature or a dark mystery that they can't quite shake off. This shared trauma binds them together in a way that's different from normal sibling love, and it might have some dark undertones. For instance, they might be codependent on each other because of this trauma.
In Gravity Falls fanfic, 'dark sibling love' could also be a new take on the existing sibling relationships in the show. It might deviate from the more innocent or typical sibling interactions we see in the original. It could be that a writer is exploring how the strange and often spooky elements of Gravity Falls affect the way siblings feel about each other. They could be drawn together in a dark way because of the mysteries they're trying to solve or because of some external force in the Gravity Falls universe.
One common theme is rebuilding. After the destruction of the war, the characters often have to rebuild the town, their relationships, and their lives. Another theme is healing, both physical and emotional. For instance, characters might be dealing with injuries or trauma from the war.
Mystery - solving is also popular. Given the nature of Gravity Falls, Wendy and Lemon could team up to solve some of the town's mysteries, like the strange creatures or the secrets behind certain locations. This adds an element of excitement and intrigue to the fanfics.
The theme of redemption can also be found in some of these fanfics. Bill, being a somewhat villainous character in the original, may be on a path of redemption in some stories, especially through his relationship with Dipper. Also, the theme of self - discovery is common. Dipper discovers new aspects of himself through his interactions with Bill.
Common themes in 'Gravity Falls Dipper x Pacifica' fanfics include acceptance. Dipper has to accept Pacifica's flaws and vice versa. There's also the theme of adventure. Since it's set in Gravity Falls, they often go on adventures together which strengthens their bond. And the theme of transformation. Their relationship transforms them as individuals. Pacifica becomes more empathetic and Dipper becomes more confident in his relationships outside of his family and friends.
A common trope in Gravity Falls dipper and wendy fanfiction is the 'coming - of - age' aspect. Dipper is on the verge of growing up and his relationship with Wendy is part of that journey. Also, the 'mentor - mentee' trope can be seen, with Wendy being more experienced and teaching Dipper things about the town and its mysteries. There's also the 'love triangle' trope sometimes, where another character might be interested in either Dipper or Wendy, adding more drama to the story.
The idea of temptation is often a theme. Bill Cipher is known for his ability to tempt people into bad decisions. In fanfics with Dipper, he might offer Dipper power or knowledge in exchange for something. This plays into Dipper's curiosity and his desire to uncover the secrets of Gravity Falls. Additionally, the theme of transformation is present in some fanfics. Bill might try to change Dipper in some way, either physically or mentally, and Dipper has to fight against it.
Common themes often include the development of Dipper and Pacifica's relationship. It might explore how their different personalities - Dipper's inquisitive and adventurous nature and Pacifica's more refined and initially snobbish one - interact and grow closer. There could also be themes of mystery-solving together, as is common in the Gravity Falls setting.
The unique setting of 'Gravity Falls' makes its tickle fanfics special. The strange and mysterious town provides a great backdrop for tickle - related antics. For example, the forest or the Mystery Shack can be the scene of many ticklish moments. Also, the distinct personalities of the characters like Dipper's inquisitiveness and Mabel's bubbly nature add to the charm when they are in ticklish situations.
Well, 'Gravity Falls: The Next Generation' is a fanfic that's quite popular. It imagines the future of Gravity Falls with the next generation of characters facing new challenges and uncovering old secrets. 'Ford's Return' is also a great read. It's about Stanford Pines coming back to Gravity Falls and the chaos and revelations that follow. Then there's 'The Cipher's Revenge', a fanfic that explores what would happen if Bill Cipher somehow found a way to come back and seek revenge on the town and its inhabitants.