In some fanfiction, if Bella turns into a werewolf, it could completely change the dynamics of the story. For example, her relationship with Edward would be put to the test. Werewolves and vampires are natural enemies in the Twilight universe. Edward might struggle with his feelings for her, seeing her as a 'monster' in the eyes of his kind. And Bella herself would have to adapt to new instincts and a new identity. She'd no longer be the vulnerable human, but a powerful werewolf with her own set of rules and abilities within the pack.
Once upon a time, there was a girl named Lily. One night, while she was walking in the forest, she was bitten by a strange wolf. The next full moon, she started to feel strange. Her body began to change. Hair grew all over her, her teeth became sharp, and she turned into a werewolf. She was terrified at first, but as time passed, she learned to control her new form to some extent.
Well, in some stories, it could be a family curse that has been passed down through generations. Maybe her ancestors made a deal with dark forces long ago and as a result, she is doomed to turn into a werewolf. Also, it could be related to a place. For example, if she lives in an area that has a strong connection to werewolf lore, the energy of the land could somehow trigger the transformation. And of course, as mentioned before, a werewolf bite is a classic cause.
Another theme is loyalty. Jacob is extremely loyal to Bella, and this is often explored in different ways in fanfictions. It could be his loyalty in protecting her from other threats or his loyalty to their relationship despite the difficulties.
One great 'Jacob and Bella werewolf fanfiction' is 'The Wolf's Promise'. In this story, Jacob's loyalty to Bella is explored in a deeper way. It shows how his werewolf nature affects their relationship, with beautiful descriptions of the forest where he runs as a wolf and his inner thoughts when he's around Bella.
One interesting story could be about Bella having to choose between her love for Jacob and her life with the Cullens in a more complex and emotional way. For example, in a fanfic, Jacob might discover a new power that could either bring him closer to Bella or push her away.
There's also 'Jacob's Redemption'. In this fanfiction, it focuses on how Jacob tries to redeem himself in Bella's eyes after some misunderstandings. It shows his loyalty and the werewolf pack's unique culture. The plot is full of twists and turns that keep you hooked.
One great Hermione turns into a werewolf fanfiction is 'Moonstruck Hermione' on FanFiction.net. It has an interesting plot where Hermione's transformation brings out new aspects of her personality and her relationships with other characters, like Harry and Ron, are explored in a unique way.
One possible fanfiction could be about Bella's transformation being a result of a unique genetic mutation in the werewolf bloodline. In this story, she might struggle to come to terms with her new form and the powers that come with it. Maybe she has to hide it from her friends at first, especially Edward and the Cullens, as they are vampires and there could be an inherent distrust between the two species in this fan - made universe.
To develop it realistically, they should face challenges. Maybe the dancer is hesitant to get involved with Jacob because of his werewolf nature. She could be scared of the danger it might bring. Jacob, on the other hand, has to learn to control his werewolf instincts around her. He might accidentally shift or show signs of aggression that frighten her. They would need to communicate openly about these issues and work through them step by step.