Perhaps they go on a journey to discover more about their unique bond as mates. This could involve exploring ancient vampire lore and secrets that might be related to their relationship.
One possible storyline could be their adventures together in the vampire world. They might face challenges from other vampire clans and have to use their combined powers to overcome them.
It could be other vampires who are jealous of their unique relationship. Maybe there are some traditionalist vampires who don't accept this new kind of mating bond among them.
One interesting plotline could be how they navigate their relationship in a world full of vampires and werewolves. For example, they might face challenges from the Cullen family who have different views on their relationship. Another could be their journey to understand and accept their unique bond as mates, which might involve them going on adventures together to discover more about their vampire nature.
One possibility could be that they form a strong bond like a family. They support each other in the challenges they face in the vampire world. For example, they might work together to protect their territory from other vampires. They could also share their different experiences and knowledge, like Alice's visions helping them prepare for future events.
Well, a common plotline is that they discover their mate bond in a rather unexpected way. For instance, in some fanfictions, there could be a magical event or a prophecy that reveals they are mates. Once they realize this, they have to deal with the complex emotions that come with it. Rosalie, who has always been protective of her family and had a certain image, might struggle with accepting her feelings for Bella. And Bella, who has been through so much with the Cullens already, now has to navigate this new relationship dynamic. It could also lead to some interesting power dynamics within the Cullen family as they adjust to Bella and Rosalie being mates.
A more character - centric plot could be about Rosalie and Bella finally coming to a true understanding and friendship. Alice could be the catalyst in this, arranging situations where they have to work together and learn about each other's pasts. This could include Rosalie sharing her human life story with Bella, and Bella sharing her fears and hopes for her new vampire life.
Maybe a plot where they form a band in the fanfiction world. Alice with her elegance, Rosalie with her confidence, and Bella with her charm could create a really cool and unique musical group, performing in different places and attracting all kinds of fans.
One plot idea could be a story where Bella, Rosalie, and Alice have to work together to solve a mystery in the vampire world. Maybe there's a new threat that only their combined skills can handle. Another could be a story focused on their friendship, like a road trip where they discover new things about each other and themselves. Or perhaps a story where they use their powers to help humans in a small town without revealing their true nature.
Well, one possible plot could be that Alice Rose has some unique powers that help Bella in a dangerous situation. For example, she might be able to foresee an attack on Bella and use her powers to create a diversion. Another plot could involve the two of them going on a journey together to discover something about their past or their families. And a third plot could be that they form a super - strong friendship that overcomes all the obstacles in their community.
In Rosalie and Bella mates fanfiction, Rosalie's character development could involve her letting go of her past traumas more easily with Bella's presence. She becomes more forgiving and less bitter. Bella's development could be quite complex. She might grow to have a more nuanced view of the vampire world. She could start to question some of the things she once took for granted. Their relationship forces them both to look at themselves and grow in ways they hadn't expected.
Perhaps they embark on a journey to discover more about their own origins. This could involve traveling to different places, meeting old vampires who might know something about their past. Along the way, they learn more about each other and grow closer as sisters.