Well, 'blue fanfic' could also be a fanfic related to something blue in a particular fandom. For example, if there's a character who is often associated with the color blue in a TV show or a book, the fanfic might focus on that character and their stories, with the 'blue' being a central theme or just a way to identify the work within the fandom.
I'm not entirely sure specifically what a 'blue lips blue veins fanfic' is about without more context. It could potentially be a fan - created story related to a character or concept where 'blue lips' and 'blue veins' are important descriptive elements, perhaps in a fantasy or horror setting.
A Blue Diamond and Blue Pearl fanfic can be really exciting. It could explore their relationship in different ways. Maybe it shows a day in their lives in the Gem Homeworld, or it could be a story where they have to face a common enemy together. Writers can use their unique personalities, like Blue Diamond's authoritative nature and Blue Pearl's loyalty, to create interesting plotlines.
There could be a fanfic that delves into the backstory of one of the Reagan family members, like Erin. It could tell the story of how she decided to pursue a career in law and the challenges she faced along the way. This would give more depth to her character in the Blue Bloods universe.
One idea for a Blue Diamond and Blue Pearl fanfic is to have them interact with other Gems in a new way. Maybe they form an alliance with Gems that they usually wouldn't associate with. This could lead to a whole new set of conflicts and resolutions, as they have to deal with different personalities and agendas while still maintaining their own relationship.
I'm not entirely sure about the specific plot of this 'Blue or Blue Forgive Prof Oak' fanfic as there could be many interpretations. It might involve a character named Blue having some sort of conflict or relationship with Professor Oak and then having to make a choice about forgiveness. But without reading the actual fanfic, it's hard to be more precise.
The title 'Blue or Blue Forgive Prof Oak' clearly points to Blue and Professor Oak as main characters. Blue could be a young and ambitious character, perhaps a trainer. Professor Oak, on the other hand, is an older, wiser figure. In the fanfic, their relationship is likely to be at the core. There may be side characters that support or oppose their actions, but Blue and Oak are the ones that the plot will mostly revolve around.
In fanfic, 'blue diamond' could potentially refer to a specific object, symbol, or character. It might be a unique creation within the fanfic universe, perhaps a precious gem with special powers or significance related to the story's plot or a particular character's arc.
It could also be the name given to a character. Maybe it's a code name for a secret agent - like in some action - adventure fanfics. Or perhaps it's a name given to an alien or a mythical creature. Without more context, it's hard to be certain.