A possible plot is that the imprint creates a power shift in the werewolf pack. Since Jacob is imprinted on Sam's daughter, it might give Jacob more influence within the pack. Sam has to deal with this new dynamic. Meanwhile, the daughter discovers she has some latent powers because of the imprint connection, and she has to learn to control them with Jacob's help.
One idea could be that Jacob's imprint on Sam's daughter causes a rift in the pack. Some members might not be okay with it due to the loyalty issues between Sam and Jacob. Another plot could be the girl struggling with her own identity while being the center of this supernatural connection. She could be trying to live a normal life but constantly being pulled into the werewolf world.
Realistically, their relationship would develop slowly. There would be obstacles. For example, Sam's protectiveness over his daughter. Jacob would have to earn Sam's trust. The daughter herself might be hesitant because of the whole werewolf world drama. But through small, everyday interactions, like Jacob helping her with school work or them going on hikes together, they can start to form a real connection.
Well, in fanfiction, when Jacob imprints on Paul's daughter, it's often a way to explore new relationships within the Twilight universe. Sometimes, it can cause a bit of a stir in the werewolf community. Paul might initially be against it, but if Jacob shows that he truly cares for his daughter, things could change. It could also bring out different sides of both Jacob and Paul's characters that we haven't seen in the original books.
Another plot could be that Sam's sister falls in love with a character from a different faction in the Twilight universe. This would create a lot of tension as their relationship would be frowned upon by both of their respective groups. It could explore themes of forbidden love and loyalty, as she has to decide between her family and her newfound love.
One possible plot could be the complex love triangle that forms. Jacob and Sam both having imprinted on Bella would lead to intense jealousy and rivalry between them. They might constantly compete for Bella's attention, while Bella is caught in the middle, trying to figure out her own feelings for both of them.
One plot idea could be that the OC is a new girl in town who is completely unaware of the werewolf world. Sam imprints on her and has to figure out how to introduce her to this new reality without scaring her away. Another could be that the OC is a hunter who initially thinks Sam is a threat but then realizes he's imprinted on her and has to deal with the moral and emotional conflict. A third idea is that the OC has a special power that the pack needs, and Sam's imprinting on her is what brings her into the fold to help the pack against a new threat.
One interesting fanfiction could be about Jacob's journey after imprinting, how he copes with his newfound bond. For example, a story might explore his relationship with the imprinted person in the face of the complex vampire - werewolf dynamics in the Twilight world.
A great plot could involve the werewolf OC imprinting on a human who is initially afraid of the supernatural world. The story could then focus on how the werewolf tries to win their trust and introduce them to the world of werewolves and vampires in Twilight. For example, the werewolf could show the human how they protect the town from the vampires at night.
Maybe the male who imprints on Leah has some special power. His imprinting on her unlocks a latent power within Leah herself. They then have to go on a journey together to learn how to control and use this new power. Along the way, they face challenges from vampires who fear the new power they possess and werewolves who are jealous of the strong bond they share.
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.
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.