One great 'True Blood' Eric Northman OC fanfiction is 'A New Beginning'. It offers a unique take on an original character's relationship with Eric. The OC in this story has a strong personality which makes for an interesting dynamic with the complex Eric Northman.
One idea could be an OC human who stumbles upon Eric's world by accident. Maybe she's a waitress in a diner that Eric frequents. He initially sees her as just a source of blood, but as he gets to know her better, he starts to develop real feelings. This could lead to a story of him protecting her from the various threats in the True Blood universe while also trying to navigate his own complex vampire nature.
The plot also matters a great deal. It could be a story that explores a different side of the True Blood world that we didn't see in the show. Maybe it's about how the OC and Eric deal with a new threat to the vampire community. It has to be engaging and keep the readers hooked from start to finish. Also, the chemistry between the OC and Eric needs to be palpable. If it's a romantic relationship, the love - hate, or the attraction - repulsion dynamic can make the story really interesting.
Research is key. Know the rules of the True Blood universe, such as how vampires interact with humans, what their weaknesses are, etc. For the relationship aspect, think about how an ancient vampire like Eric would view a modern - day human. There could be a lot of cultural differences and misunderstandings at first. But as they spend more time together, they start to bridge those gaps. The fanfiction could explore their journey of understanding each other while facing the many challenges in the True Blood world.
Their relationship would become more protective. Eric would be extremely possessive and protective of Sookie and the unborn child. Sookie, on the other hand, might start to rely on Eric more for physical protection and emotional support.
In some fanfictions where Sookie meets Eric first, it could lead to a very different relationship dynamic. Eric might be more possessive right from the start. He could use his charm and power to draw Sookie closer to him, perhaps protecting her from the very beginning against the other supernatural threats in the True Blood universe.
To develop their relationship realistically, communication is key. Since Eric is a vampire and the reader is young, there will be a lot of misunderstandings at first. The reader might be scared of Eric's vampire nature, but he can show her his more gentle side over time. They could start with a friendship where they exchange stories about their different worlds. As they become closer, physical attraction can develop, but it should be a slow burn. For example, a simple touch on the hand can mean a lot at the beginning. And they should have common goals, like protecting the town from a new supernatural threat, which will bring them even closer.
One plot idea could be that Sookie and Eric have to face the vampire and human communities' reactions to their pregnancy. Since their relationship is already complex due to the vampire - human nature, the pregnancy adds another layer. Another idea is that they struggle to protect their unborn child from various threats, like other vampires who might see the baby as a threat or a valuable asset.