A more complex plot could be that the OC is a time - traveler. They accidentally land in Rebekah's time period. At first, Rebekah is suspicious of the OC, but as the OC reveals knowledge of future events that could help Rebekah and her family, they form an alliance. However, changing the past has unforeseen consequences that they must deal with.
One plot idea could be an OC who is a long - lost relative of the Mikaelsons. They show up in Mystic Falls and at first, the Mikaelsons are suspicious. But as time goes on, they start to form a bond, especially Rebekah. Another could be an OC who is a powerful witch and is brought in to help the Mikaelsons with a new threat. Rebekah might initially be jealous of the OC's power but then realizes they can work together. A third idea is an OC who is a human with a special ability to see the future. Rebekah tries to use this to her advantage in the vampire - filled world she lives in.
One idea could be the baby having unique powers that attract both danger and allies. Maybe the baby's powers are a mystery even to Rebekah at first, and she has to protect it from those who would use it for their own gain. Another plot could be about the baby growing up in a world full of supernatural politics, with Rebekah trying to shield it from the darker aspects of that world. Also, a story where the baby forms an unexpected bond with a character who was initially an enemy could be really interesting.
One idea could be that Rebekah's son discovers a hidden power within him that links to the family's dark past. He might struggle to control it while also trying to fit into the human world. For example, he could accidentally use this power during a school event, causing chaos.
One common theme is the forbidden love aspect. Given Rebekah's complex family and vampire nature, a relationship with a male OC can often be seen as something that goes against the norms of her world. Another theme is the male OC being a sort of savior or protector for Rebekah, especially in situations where she is in danger from her enemies.
One great storyline could be the OC being a long - lost friend from Rebekah's past. They could have a shared history that no one else in the Mikaelson family knows about. This could lead to a lot of secrets being unearthed and Rebekah having to choose between her family and this new - found connection. Another idea is that the OC is a powerful witch who comes to help Rebekah break a curse. They gradually fall in love during the process of trying to find the solution. And finally, the OC could be a human who Rebekah tries to protect from the dangerous vampire - hunter world she lives in, and through this protection, love blossoms.
One idea could be that the OC is a powerful witch who gets caught in the middle of the Salvatore - Rebekah drama. She might initially befriend Rebekah, not knowing her full vampire nature, and then fall for one of the Salvatores. This creates a love triangle full of supernatural twists.
One common theme is friendship. Many fanfics explore how an original character can form a deep and meaningful friendship with Rebekah. Another theme is adventure. Since the Mikaelson world is full of danger and mystery, the oc often gets involved in adventures with Rebekah. For example, they might go on a quest to find a lost artifact or face a new supernatural threat.
One great fanfiction in this category is 'Rebekah's New Love' where the OC is a half - vampire, half - witch. It has a really engaging plot that weaves in the relationship between Rebekah and the OC while also involving the Salvatores in a very interesting way. Another one is 'Salvatore's Secret Heir' which focuses more on the mystery aspect of the OC's identity and how it affects their relationship with Rebekah.
In a Rebekah Mikaelson x OC Salvatore fanfiction, one common theme could be redemption. Maybe the OC has a dark past and Rebekah sees something in them that she wants to save. Or it could be about power struggles. The OC, being related to the Salvatores, might have access to certain resources or knowledge that Rebekah wants. Another aspect could be the exploration of forbidden love. Since the Vampire Diaries is full of complex relationships, this pairing can add another layer of complexity. Writers often use this to create a unique and engaging story that stands out from the original plot of the show.
Perhaps in the fanfiction, Rebekah is a transfer student from a different magical school. She forms an unlikely friendship with Hermione. Together, they work on a project that combines the magic of the Vampire Diaries' world (where Rebekah is from) and the wizarding world of Harry Potter. This could lead to new spells being discovered. And Rebekah might also have some romantic tension with one of the male characters, like Ron or Draco.