Well, it's hard to say for sure. Sometimes stories like Maxine might be based on real events but with fictional elements added. Or it could be completely made up. We need more details to determine its authenticity.
One key theme is friendship. Pink Pearl and Pearl come from different backgrounds within the Gem world, but through their interactions, they form a strong bond of friendship. Another theme could be loyalty. They are both loyal to their respective Diamonds in different ways, and this loyalty sometimes creates tension and sometimes brings them closer.
Love or a deep emotional connection is also a possible theme. This doesn't necessarily have to be romantic love, but rather a strong bond that develops between them. It could be a platonic love that is so deep it rivals the closest of friendships. In these fanfics, the writers might focus on how they communicate, understand each other's feelings, and grow closer over time. There could also be themes related to loyalty, where they prove their loyalty to each other through various trials and tribulations.
Not really. Maxine is mostly a fictional creation with elements that might draw inspiration from various sources but not a direct retelling of a true event.
One popular 'pink pearl x pearl fanfic' might be 'The Bond of Pearls'. It focuses on the unique relationship between Pink Pearl and Pearl, exploring their shared experiences in the complex world of the Gem society. They face challenges together and support each other through difficult times.