Often, there are themes related to his past and how it affects his present actions. For example, his time in the other dimension and how that shapes his character in the fanfiction. Also, themes of self - discovery are quite common. As he's a complex character, writers might explore how he further discovers himself in different situations in the Lemon fanfiction.
You can try searching on fanfiction websites like Archive of Our Own (AO3). There are often a lot of fan-made stories there, and you might be able to find some great Lemon Stanford Pines fanfiction by using the search function and filtering the results.
One plot idea could be that Stanford Pines discovers a portal to Star Butterfly's dimension. He teams up with Star to stop an evil force that is threatening both their worlds. Maybe it's an ancient entity that has the power to disrupt magic in Mewni and the strange anomalies in Gravity Falls.
You might want to look for fanfics on Wattpad as well. There could be some hidden gems. A possible scenario in a 'Stanford Pines meets Star Butterfly' fanfic could be that Star's friends from Mewni visit Gravity Falls. Stanford, being the curious and knowledge - hungry person he is, would be intrigued by their magic and might try to study it. This could lead to all sorts of comical and exciting situations as the two sets of characters learn from each other.
In 'in the pines twilight fanfiction', the pines might symbolize a place of seclusion or mystery. The twilight aspect adds an element of ambiguity and transition. It could be that the story within the fanfiction uses this setting to explore themes like isolation, discovery, or a change in the characters' journey. For example, if it's a fantasy - based fanfiction, magical creatures might emerge in the pines at twilight.
Fanfiction about Dipper Pines and Bill Cipher can be really interesting. It often explores the complex relationship between the two characters. Some fanfics might focus on how Dipper tries to outwit Bill, while others could delve into the idea of an unlikely alliance between them.
The 'pregnant dipper pines billdip fanfiction' is likely a very niche and creative piece within the fanfiction community. If it's well - written, it could be a fascinating exploration of character development. For example, Dipper being pregnant could lead to a whole new set of challenges and character growth within the relationship with Bill (assuming Billdip is a romantic or at least a strong connection in this fic). It could also play with themes like family, responsibility, and the supernatural elements that are often associated with the Gravity Falls world.
If it's a fanfiction related to a fantasy world, there could be elves or fairies. The pines would be their natural habitat, and twilight could be a time when they are most active. For example, the elves might be holding a secret meeting in the pines at twilight.
One popular Reverse Pines fanfiction might be the one where the characters' roles are reversed in terms of their personalities. For example, Dipper could be more carefree and Mabel more studious.