One idea could be that Jacob struggles to adapt to his new vampire instincts while still holding onto his old wolf pack values. He might have a hard time controlling his thirst around his former friends.
In this fanfiction, Jacob could find that being a vampire gives him a new perspective on his relationship with Bella. Since he is no longer a werewolf, he might re - evaluate his feelings for her and how his new existence affects their dynamic. Also, he may form an alliance with some vampires who have different ideals than the traditional vampire clans.
One plot idea could be Bella struggling to choose between her vampire life with Edward and her deep friendship with Jacob that has the potential to turn into more. Another could be Jacob trying to protect Bella from a new vampire threat while also dealing with his feelings for her. Maybe a plot where Bella discovers a new power as a vampire that Jacob has to come to terms with.
Another plot could be centered around their relationship growing stronger during the pregnancy. They could discover new things about each other as they prepare for the baby. For example, Jacob might find out that Leah has a hidden talent for painting, which she uses to decorate the nursery.
Perhaps a plot where Jacob and Harry are accidentally transported to an alternate dimension. In this new world, they have to rely on each other completely to find a way back home. Along the way, they discover new things about themselves and their relationship, and it could be a story full of adventure, self - discovery, and of course, their growing bond.
One plot idea could be that Jacob and Edward have to team up to protect their shared territory from a new threat. They start off distrusting each other but as they face challenges, they learn to respect and rely on one another.
One interesting plot idea could be Jacob teaching Renesmee about the werewolf culture. Since she's part vampire and part human, she might be curious about the werewolves. Jacob could show her how they communicate within the pack, their traditions, and how they protect their territory. This would create a unique bond between them as she learns more about his world.
Perhaps a story where Renesmee gets into some trouble with a group of vampires who don't accept her existence, and Jacob has to fight to protect her. This could involve some intense battles and also show the depth of Jacob's love for Renesmee as he risks his life for her.
One idea could be that they face challenges from their different supernatural backgrounds. Jacob, as a werewolf, might have concerns about how his nature could affect the pregnancy. And Nessie, being half - vampire, half - human, could have unique health issues during pregnancy that they need to figure out together.
One idea could be that Hermione is on a research mission in the forest where Jacob Black's pack roams. Their paths cross and at first they're wary of each other. But as they start to communicate, they realize they can help each other. Jacob can provide Hermione with knowledge about the forest's magic that she didn't know, and Hermione can offer her magical expertise to solve some problems the pack is facing, like a mysterious dark magic that's affecting the forest animals.
One idea could be that Angela discovers Jacob's werewolf secret in a very unexpected way. Maybe she stumbles upon him while he's in wolf form in the forest and instead of being afraid, she's intrigued. This could lead to a unique friendship where Angela helps Jacob understand the human world better from an artistic and sensitive perspective that she has.
Maybe they get lost together in the forest during a full moon. In their struggle to find their way back, they share stories from their pasts that they've never told anyone before, which deepens their connection. For example, Leah could open up about her heartbreak over Sam, and Jacob could talk about his complex feelings towards Bella.