One possibility could be that their baby has unique powers. Since Bella has her own set of abilities and Caius is from a special vampire lineage, their child might inherit a blend of powers. For example, it could have super strength like vampires but also an enhanced mental connection like Bella's gift. The story could then focus on protecting this child from those who might want to use its powers for their own gain.
In this fanfiction, perhaps the baby becomes a symbol of hope for a new future. Bella and Caius could raise the baby in a world where vampires and humans are starting to co - exist more peacefully. The baby's very existence might inspire others to look beyond the differences between species. It could grow up to be a bridge between the two worlds, and the story could detail its journey to bring about positive change.
The plot might revolve around the acceptance of the baby within their respective communities. The Volturi, where Caius is from, are strict about their laws. Having a half - Bella, half - vampire baby could be a huge disruption. Bella's friends and family might also have mixed reactions. So the fanfiction could be about how they deal with all these reactions and still keep their family together.
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.
One possible plot twist could be that Bella discovers Caius has a hidden agenda all along, and it's not just about their relationship. Maybe he's using their bond to gain power within the vampire world. Another twist might be that Bella has a secret power that is awakened by her connection with Caius, and this power changes the dynamics of their relationship and the entire vampire community.
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.
There could be a story where Caius has a change of heart after meeting Bella. In the Twilight world, Caius is known for his strict and often cruel ways. But when he encounters Bella, he starts to question his own beliefs. Maybe Bella gets lost in the Volturi territory and Caius finds her. Instead of punishing her, he is intrigued by her. This could lead to a story of him trying to understand her human - vampire relationship with Edward from a different perspective. He might even start to envy Edward in a way, which could create a whole new dynamic in the fanfiction.
Well, in some of these fanfics, a common plot point is Caius introducing Bella to the vampire world's unique honeymoon traditions. For example, they might have a special vampire - themed celebration in a secret location. Another plot point could be Bella's struggle to adapt to Caius's more extravagant lifestyle during the honeymoon. She might be used to a simple life, but Caius is used to luxury.
The plot could involve Caius hiding his true identity from Bella for a long time. She might grow up thinking she has a normal father, until strange things start to happen. For example, she notices that her father never ages. Then, when she discovers the truth, she has to come to terms with being part vampire herself. Caius would then have to protect her from those who might want to harm her because of her unique heritage.
Their relationship could face new challenges. They have different backgrounds, with Bella being human - turned - vampire and Caius being an old - school vampire. Disagreements about how to raise the baby could arise. For example, Caius might want to raise the baby according to Volturi traditions, while Bella might want a more modern approach. This could lead to arguments but also force them to communicate better and understand each other more.
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.