It might not be one of the most mainstream ones. There are so many different types of fanfiction, and while some relationships like this can be explored, it may not have as wide an appeal as more common pairings. However, in certain niche groups within the fanfiction world that are focused on specific characters like Bella and Caius, it could be quite popular.
Well, it could start with Bella being captured by Caius. As his pet, she is forced to live in his lair. Caius might be possessive of her and not allow her to interact with others. Bella, being a strong - willed character, tries to resist this new role. She could start to learn about Caius' past and weaknesses in order to find a way to break free. There could also be a love - hate relationship developing between them, where Caius starts to have unexpected feelings for Bella as more than just a pet, which further complicates the situation.
At first, it might be a bit rocky. Bella, being human and now blind, is in a very vulnerable state. Caius, as a powerful vampire, may come off as intimidating. But as time goes on, they start to develop a deep bond. Caius learns to be more gentle and caring, and Bella starts to trust him more and more.
Well, Caius could be very possessive and see Bella's blindness as something that makes her even more his. He would be by her side all the time, guiding her physically when needed. He might also share his vampire senses with her in some way, like describing the world around them in vivid detail so that she can 'see' through his words. And he would definitely be very angry if anyone made fun of or took advantage of her blindness.
One common theme is the struggle between different vampire clans. Since Caius is part of the Volturi and Bella has her own connections, this often creates a backdrop of power struggles and politics in the fanfiction.
Bella, a character known from the Twilight series, is one of the main characters. She is usually the focus of the story's emotional arc. Caius, from the Volturi, is the other main character. His actions and decisions, especially in relation to Bella, form the core of the conflict and development in the fanfiction. Their personalities, which are often a blend of what we know from the original source and new interpretations, are what make these stories interesting.
Often, bella x caius fanfiction features a relationship that is somewhat dark and intense. Caius being part of the Volturi has his own set of power and authority, which adds an element of danger to the relationship with Bella.
One great Caius Volturi and Bella fanfiction is 'The Volturi's Obsession'. It explores an alternate universe where Caius has a more complex relationship with Bella. Another is 'Caius and Bella: A Forbidden Bond' which delves into the challenges they face due to their different natures.
I'm not sure who the absolute best is, but some popular authors in the fanfiction community might be those who have a deep understanding of the 'Twilight' universe and can write believable interactions between Caius and Bella. Look for authors with a lot of positive reviews and high ratings on fanfiction websites.
There are some. However, the quality can vary greatly. Some fanfictions might focus on the emotional aspects of this new family connection, while others could be more action - packed, perhaps involving Bella's new role in the Volturi family if Caius is her father. It really depends on what you're looking for in a fanfiction.