The theme of redemption also pops up. Kol has a rather dark past, and in some fanfictions, his relationship with Davina is seen as a way for him to redeem himself. It shows how love can change a person and lead them to a better path.
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.
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.
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.
Relationship development is often a theme. The pregnancy might bring them closer or cause some tensions as they adjust to the idea of becoming parents. Another theme could be the reaction of their friends and family in the fanfiction world. Some might be supportive, while others could be against it for various reasons, like fearing the power of the unborn child.
One common theme is the struggle against their different natures. Kol is a vampire with a dark past and Davina is a powerful witch. Their relationship often has to overcome the challenges posed by their respective supernatural identities.
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.
There could be some. You might want to check popular fanfiction websites like Archive of Our Own. Just search for 'Kol and Davina pregnant' on the site and you may find a variety of stories with different plotlines and interpretations.
It's not really appropriate. Kol and Davina are characters from a story, and while fanfiction allows for creative interpretations, focusing on sexual encounters in a fan - created story can overshadow other aspects of their relationship, like their emotional bond, the development of their characters, and the overall plotlines in the original work. Moreover, it may violate the ethics and guidelines of the fan community.
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.
If they are from 'The Originals', one key event was when Davina first encountered Kol's family. This put her in a dangerous position as a witch. Another was when Kol and Davina started to develop feelings for each other despite their different natures. And when Davina had to make a choice between her loyalty to the witches and her relationship with Kol.
I'm not sure specifically which 'Kol and Davina' you are referring to. There could be many characters with those names in different stories. If they are from a TV show like 'The Originals', Kol was a vampire and Davina was a powerful witch. Their relationship was complex. Davina was initially used in the power struggles among the vampires and witches, and her connection with Kol grew over time, filled with love, betrayal, and many challenges in the supernatural world of the show.