Well, in a Stefan and Rebekah pregnant fanfiction, perhaps it starts with a spell gone wrong that results in Rebekah being pregnant with Stefan's child. They then have to figure out how to break the spell if they want to, but in the process, they start to develop real feelings for each other. Their journey could involve hiding from their enemies who might want to harm the unborn child for various reasons, like power or revenge.
One possible plot could be that Stefan and Rebekah find themselves in an unexpected situation where they are about to have a baby. There could be a lot of drama as they deal with their families' reactions. Maybe the Mikaelsons are initially against it, while Stefan's friends are also shocked. They would have to navigate through their own relationship issues while preparing for the new life coming.
One possible plot twist could be that the pregnancy is a result of a magical spell gone wrong. Maybe a witch with a vendetta against them cast a spell that made Rebekah pregnant with Stefan's child as a way to disrupt their lives. Another could be that it's a false pregnancy caused by some dark entity preying on their fears of starting a family. This would add a lot of drama as they first deal with the shock of the pregnancy and then the realization that it might not be real.
The Mikaelson family, especially Klaus, could be antagonists. He might see the pregnancy as a threat to his family's power or reputation. He could try to stop Stefan and Rebekah from being together and having the baby.
One possible plot twist could be that an old enemy resurfaces during the wedding. Maybe a vampire from their past who has a vendetta against either Stefan or Rebekah shows up to disrupt the ceremony. This could lead to a fight scene where Stefan and Rebekah have to put their newfound union aside for a moment to deal with the threat. Another plot twist could be a family member's objection. For example, Klaus might object to the marriage as he has his own plans for Rebekah and doesn't want her to be tied to Stefan.
Rebekah's family has a long history of complex relationships. Her mother, if still around, might see the pregnancy as a way to strengthen their family's position in the supernatural world. However, some of her siblings like Kol might be jealous or feel left out. On Stefan's side, his vampire nature might make his family worry about the implications of having a half - vampire child. They would be concerned about how to raise a child in their world of danger and secrets.
Character development is a big characteristic. As the story progresses, both Stefan and Rebekah usually change. Stefan might become more lenient towards Rebekah's flaws, and Rebekah might start to develop a more empathetic side due to Stefan's influence. This transformation of their characters within the fanfiction is what makes it so appealing to many readers. Fanfictions also often explore their pasts, like Stefan's history with the Salvatore family and Rebekah's long - standing issues with her own family, the Originals, and how these pasts shape their relationship in the present.
A good alternative would be to explore their family relationships. Rebekah has her complex family history with her siblings, and Stefan also has his own family - related issues. Writing about how they might interact regarding family matters, like Rebekah giving Stefan advice on dealing with his brother Damon, could be a really engaging fanfiction concept.
Well, one possibility could be that Stefan and Elena have to face a lot of challenges together. Their relationship might become stronger as they prepare for the baby. Maybe they'll have to deal with the reactions of their friends and family, like Damon's reaction which could be quite complex.
Well, perhaps the plot twist is that Rebekah's pregnancy is advancing at an abnormally fast rate. It could be due to some dark magic that was cast on her without her knowledge. And Matt, in his attempt to find a cure, stumbles upon an ancient spell that he has to perform, but it comes with a huge risk. If he fails, he could lose Rebekah and the baby. Or, it could turn out that the pregnancy is a false one, created by an enemy to manipulate them into making a wrong move.
A plot could revolve around Rebekah's pregnancy being a secret at first. She tries to hide it from those who might use it against her. As the pregnancy progresses, she starts to form a bond with the unborn baby in unexpected ways. For example, she might start having dreams about the future of the child. Then, as the secret slowly starts to come out, she has to face the consequences and reactions of those around her.
One possible storyline could be that Rebekah and Marcel discover they are pregnant unexpectedly. They might initially be in shock. Rebekah could be worried about how her vampire family will react, especially considering the complex relationships within the family. Marcel, on the other hand, might be excited but also a bit fearful of the responsibilities. They could face challenges from the vampire community who may not accept a half - vampire baby. The story could then revolve around them protecting their unborn child and finding a place in the world where they can raise it in peace.