One possible plot could be that Kol turns Davina into a vampire out of love. He doesn't want to lose her to mortality. Davina, at first, is horrified as she has always been on the side of the witches. But as she starts to experience her new vampire powers, she begins to see the world in a different light. She and Kol then have to face the wrath of the witch community who see her transformation as a betrayal.
In the fanfiction, perhaps Kol turns Davina into a vampire as part of a deal. He's in a bind with some powerful enemies and he thinks that a vampire Davina could be a powerful ally. Davina, being a strong - willed character, is angry at first. However, she soon realizes that she can use her new state to gain more power and knowledge. Together, they embark on a journey to discover the secrets of vampire - witch hybrids.
Well, it could start with Kol's desperation. He's lonely and Davina is the only one he truly cares about. He decides to turn her into a vampire without her full consent. Davina wakes up as a vampire and is extremely confused and angry. But Kol tries to show her the perks of being a vampire like enhanced speed and strength. As time passes, Davina starts to accept her new identity, but they have to constantly hide from those who would seek to destroy a newly - turned vampire, especially one that was once a powerful witch.
Their relationship would become more intense. As a vampire, Davina would have new emotions and instincts. Kol, who has more experience as a vampire, would have to guide her. This could lead to some power struggles as Davina is used to being in control. But it could also bring them closer as they face new challenges together.
Kol Davina fanfiction often has intense emotional moments. Given their different backgrounds and the challenges they face, there are a lot of heart - wrenching and heart - warming scenes. The fanfictions also tend to expand on the lore of their world. They might introduce new types of magic or new vampire abilities related to Kol. And a lot of them play with the idea of fate, whether Kol and Davina are truly meant to be together or if they have to fight against the odds.
One possible plot could be that Davina and Kol discover the pregnancy unexpectedly. They might face many challenges. For example, they would have to deal with the reactions of their families and friends in the supernatural world. Some might be happy, while others could be worried about the implications of a half - witch, half - vampire baby. Also, they would need to protect the unborn child from the many threats in their world.
Power and its implications is another theme. Given their supernatural natures, how they use their powers in relation to their relationship is often written about. For example, Davina's power might be a source of both attraction and danger in their relationship.
The plot twist could be that Kol and Davina find out that the pregnancy is part of a prophecy. However, the prophecy has been misinterpreted by many. They initially think it's a good thing, but as they dig deeper, they realize that there are dark forces at work trying to use the baby for their own evil purposes. So they have to fight against these forces to protect their unborn child and their future together.
One common theme is family. It shows how Kol and Davina form a new family unit with their baby and how they protect and cherish it.
The fanfiction could go like this. Sonic is on a mission in a spooky, abandoned town. Unbeknownst to him, it's infested with vampires. One of them manages to turn him into a vampire. At first, Sonic is horrified. His appearance changes slightly, with paler fur and redder eyes. He has to learn to live with his new condition. His friends like Tails and Knuckles are confused and a bit scared. However, Sonic discovers that being a vampire gives him the ability to sense danger from afar. He then uses this to his advantage to protect the town and his friends from an even greater evil that's lurking in the shadows. Eventually, he might find a way to reverse the transformation and return to his normal self.
In a 'Harry turns into a vampire' fanfiction, the story could start with Harry being cursed by a powerful and ancient spell that turns him into a vampire. His friends at Hogwarts are initially scared and unsure how to deal with him. However, Harry is determined to find a way to reverse the transformation. Along the way, he discovers that there are some positive aspects to being a vampire, such as heightened senses that help him in his detective - like investigations into the origin of the curse.
A great alternative plot could be Kol and Davina facing a common enemy. Maybe a powerful vampire or witch is threatening their friends and family. They have to work together, using their unique skills and the bond between them to defeat the foe. Or perhaps a story where they are trying to revive an old magical tradition that has been lost, and in the process, they strengthen their relationship through shared goals and experiences.
One common theme could be the exploration of new emotions. Since it's their 'first time' in some aspect, perhaps it's the first time they truly open up to each other, so themes of vulnerability and trust often come up.