One common theme is friendship. The OC often forms a unique bond with Bella, either helping her through tough times or just being a great friend. Another theme is the exploration of the supernatural world. Since the Twilight series has a lot of supernatural elements, the OC usually gets involved in that aspect too, like dealing with vampires and werewolves.
She might be portrayed as a villain by showing her being manipulative. For example, she could use her relationship with other characters to get what she wants, like using Edward's love for her to control his actions or decisions.
Well, in some fanfictions, she might be depicted as the devil through her actions. Maybe she's shown as being manipulative, using her charm to get what she wants from others, much like how the devil is often portrayed as a tempter in traditional stories.
One common theme is the idea of forbidden love. Since Bella is already involved with Edward in the original 'Twilight' story, her relationship with an oc wolf mate is often seen as something that goes against the norm. Another theme is the discovery of a new side of Bella. Through her relationship with the wolf, she may learn new things about herself and her place in the supernatural world.
One popular Bella Swan and OC fanfiction is 'The New Girl in Forks'. It has an interesting plot where the OC brings a new dynamic to the story. Another great one could be 'OC's Journey in Twilight World' which focuses on how the OC interacts with Bella and the other characters from a unique perspective.
In some 'si oc bella swan fanfiction', the OC might be a werewolf from a different pack. This OC meets Bella and has a different perspective on the relationship between the werewolves and the Cullens. Their interactions could lead to new alliances and a different view of the Twilight world as a whole.
One common theme is the discovery of a new relationship. Since the male is an OC, it's all about how Bella and he find each other and start to form a connection.
One common theme is the power dynamic. Since one is a normal human (Bella) and the other is a God - like OC, exploring how they balance that power difference is often seen. For example, in many stories, the OC has to learn to control their powers around Bella.
Well, it depends on the specific fanfiction. There are countless fanfictions out there, and while some may indeed portray Bella Swan as a Winchester, others may not. Fanfiction is a very diverse genre where authors can take characters and bend the rules to fit their own unique stories. So, without specifying a particular fanfic, it's hard to say for sure.
There probably is. Fanfiction writers are very creative and love to cross over different fandoms. Bella Swan's story has elements like love and the supernatural, and the Addams Family has a very distinct and interesting set of characters. Combining them in a fanfiction can lead to some really unique and engaging stories. Maybe it could be about Bella Swan somehow getting involved with the Addams Family's strange and wonderful world.