One interesting 'Edward and Esme are mates' fanfiction could be where they discover their bond in a very unexpected way. Maybe they are both on a mission to protect the Cullen family from a new and powerful threat. During this time, they start to realize that their connection is deeper than just being family members in the coven. They begin to communicate on a whole new level, sharing thoughts and feelings that they never thought possible before.
One common theme is the exploration of a forbidden or unexpected love. Since they were previously seen as family within the Cullen coven, their new relationship as mates goes against the normal perception. Another theme is the discovery of self - identity. As they become mates, they might question who they are within the family and the vampire world anew. For example, Esme might wonder how her role as Carlisle's wife was different from her new role as Edward's mate.
In this fanfiction, the relationship could start with a simple attraction. Esme might be drawn to Bella's unique human - turned - vampire essence. As they become mates, they could travel together, exploring different parts of the world. Along the way, they encounter other supernatural beings. Their bond is tested when Bella is put in danger, and Esme has to use all her strength and wits to save her. This experience deepens their relationship and they become even closer, vowing to always protect each other.
One common theme could be family dynamics. Since Edward and Esme have a relationship within the context of a family - like in some stories, exploring how their bond affects the family unit might be a theme.
The bond between them is special. Since Bella is a human - turned - vampire, Esme can relate to her transformation journey in a way. Esme's nurturing nature towards Bella is also a key aspect. She protects and guides Bella, and Bella respects and admires Esme. This mutual respect and the way they complement each other are unique to their bond.
Alice is often a great character in such fanfiction. Her ability to see the future can add a lot of twists and turns to the story. For example, she might foresee a danger to Edward and Bella's relationship and try to prevent it.
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.
In some fanfictions, their relationship might start with a sense of mutual understanding. Bella, being new to the vampire world, could look up to Esme as a mother figure. Esme, in turn, might be drawn to Bella's humanity. As the story progresses, they could bond over protecting the Cullen family. They might share secrets and support each other through difficult times, like when facing threats from other vampires or dealing with the internal struggles within the family.
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.
Esme is very warm - hearted and maternal. Bella is often brave and determined. Esme's warmth can soothe Bella when she's feeling down or facing difficulties. Bella's determination can inspire Esme to be more assertive in certain situations.