Well, obviously Edward and Bella are the main characters. Edward, the vampire, is central to the concept as he is the one with the struggle regarding Bella's blood. Bella, on the other hand, is the object of his dangerous attraction.
That is a very disturbing and inappropriate topic. There should not be such fanfiction as it involves extremely abnormal and unhygienic content. Fanfiction should be based on positive, healthy and ethical themes.
In some fanfictions, it might explore the intense internal struggle within Edward as he is drawn to Bella's blood. Maybe he has to fight his primal vampire instincts more than ever before, which could lead to some really tense and emotional moments.
It's not acceptable because it involves extremely unhygienic and abnormal behavior. This goes against the basic standards of what is considered proper in any form of literature or fan - created works.
In the 'bella is edward's pet fanfiction', the relationship is a creative and often controversial take. It could be that the author is exploring themes of dependency and power. Bella as a pet might symbolize her vulnerability and Edward's strength. However, this also raises questions about her agency. Does she have any say in things? Or is she completely at Edward's mercy? It can be a very complex relationship to unpack within the framework of the fanfiction.
It redefines it by making it unequal. Bella is in a position of being 'owned' in a sense, which is a huge change from their normal relationship where they are more like equals in love.
Another possible location could be an old, abandoned church that has been restored just for their wedding. The stained - glass windows and high ceilings would create a very solemn and beautiful atmosphere. It could also have some kind of connection to Edward's past, like it was a place his family once visited long ago.
Bella often becomes more confident in her relationship with Edward as his wife. She may be more assertive in making decisions for their future together.
Sometimes in fanfiction, Bella might be more assertive when they meet. Instead of being the shy girl, she could be the one to initiate the conversation. This change in her personality can lead to a different dynamic in their relationship from the start.
Their relationship often deepens. With the idea of having a baby, they become more connected on an even deeper emotional level. They start to see each other in new roles, as future parents.