Another plot could be that they are on opposite sides of a conflict initially. But as they realize they are mates, they have to find a way to reconcile their differences and work together. This could involve a lot of internal struggle for both of them as they deal with loyalty to their respective sides and their new - found bond.
One possible plotline could be that Marcus discovers Bella's blindness and is initially hesitant about their relationship but then grows to see it as something that makes her unique and special. He might then become very protective of her.
Perhaps there is an external threat to their mateship. A powerful villain could be trying to break them apart for some reason, like using magic or blackmail. So, they have to fight against this threat to stay together.
Another plotline could revolve around a conflict within their group, and Bella and Esme have to work together to resolve it. Their bond as mates would be tested and strengthened through this. They might have to face opposition from other characters who don't understand their relationship.
A plotline might involve Bella having to choose between different aspects of her relationships with Jasper and Emmett. For example, Jasper could offer her a more cerebral and controlled relationship, while Emmett might represent a more passionate and physical connection. Also, they could all be on a journey to discover more about the origin of their unusual mating bond.
One possible plotline could be that they are brought together by a mysterious force. They have to figure out why they are mates and what it means for their future. Another could be that they are from different vampire clans and their relationship causes a rift between the clans. They then have to find a way to reconcile the clans while maintaining their relationship.
Well, in such a fanfiction, Bella and Marcus are usually depicted as mates, which often means they have a special, deep connection. It could involve a lot of romantic and emotional elements. Maybe they go through various adventures together, facing challenges that test their relationship. It might also explore their individual personalities and how they complement each other.
One key element is the unique relationship dynamics. Bella's relationships with Marcus and Alistair are different from the normal vampire - human relationships. It's often about exploring new kinds of love and loyalty.
Well, in these fanfictions, a common plotline is the power struggle. Aro is a powerful vampire, and Bella, even as a vampire, has her own strengths. Their relationship might be about finding a balance of power. Another plotline could be the discovery of their mate bond. How did it happen? Was it some long - lost prophecy or just a random twist of fate? And then there's the matter of their different worlds colliding. Bella is from a small town in Forks, while Aro is at the center of the vampire world. How do they bridge this gap? There could be a lot of cultural differences, so to speak, between the two of them that need to be explored in the story.
First, do some research on the characters. Know their personalities, powers and backstories from the original source material. For Bella, her tenacity and self - sacrifice are important traits. Aro is power - hungry, Marcus is more introspective, and Caius is hot - tempered. Start with a strong concept, like Bella being a bridge between different vampire factions and the Volturi. Then, build a plot around how their relationships as mates would develop, including any conflicts that might arise due to their different natures.
One idea could be a story where Bella is somehow connected to all three - Aro, Marcus and Caius. Maybe she has a special power that intrigues them all. For example, her ability to resist mental powers in the Twilight universe could be a factor. She could be a key to some sort of vampire - related mystery that they are all trying to solve.