One common plotline is the reaction of other characters. For example, how Klaus's family members or Katherine's friends react to the news. Some might be happy, while others could be shocked or even opposed to it.
There might also be a plotline where they discover something special or unique about the baby during the pregnancy. This could be related to their supernatural abilities. For instance, the baby might show signs of having powers even before it's born, and they have to figure out how to handle this and protect the baby from those who might want to use its power for their own gain.
Another plotline could involve the challenges they face during the pregnancy. Maybe there are threats from enemies who see the unborn child as a target or a potential power. It could also be about how they deal with their own relationship issues while preparing for the baby. Since Klaus and Katherine have complex personalities, there might be arguments and reconciliations throughout the pregnancy in the fanfiction.
One common plotline is the struggle with their relationship. Since Klaus is a complex and often villainous character in the show, there's a lot of drama around how they'll raise the child together. For example, Caroline might be worried about Klaus's violent tendencies influencing their baby.
In Klaus and Katherine baby fanfiction, it could be interesting if the baby was born with a prophecy attached to it. The prophecy might say that the baby will either bring great peace or great destruction to the vampire world. This would put a lot of pressure on Klaus and Katherine to ensure the baby grows up to be a force for good. The baby might also have an unusual appearance, a blend of Klaus and Katherine's features, which could make it stand out among other supernaturals. And as the baby develops, it could start to show signs of having a moral compass that is different from both its parents, leading to some interesting family dynamics.
Another theme is the protection of the unborn child. Given the dangerous supernatural world they live in, both Bonnie and Klaus are usually depicted as being extremely protective. They will go to great lengths to keep their baby safe from all the threats out there.
Another theme might be Klaus's reaction to the pregnancy. Some fictions explore whether he is protective, indifferent, or even hostile at first. His complex character adds a lot of depth to this kind of storyline.
A sense of hope is a common theme too. The pregnancy can symbolize a new start for them. It can be a chance to break away from their past mistakes or a way to build a better future for their family. It also gives an opportunity for character growth, especially for Klaus who has a complex character.
You can try fanfiction websites like Archive of Our Own (AO3). There are often many fanfics on various topics, and you can search for 'Klaus and Katherine pregnant' in the search bar to see what comes up.
There could be a fanfiction where Klaus realizes his true feelings for Katherine after she saves his life. In this story, they might struggle with their past betrayals but eventually find a way to be together. Katherine's cunning nature might be softened by Klaus's affection, and they could have a complex relationship full of passion and drama.
One common theme is the unexpected nature of the pregnancy. It often throws their lives and relationships into chaos. Another theme could be the struggle to protect the unborn child, especially considering the dangerous worlds they come from.
Another reason is that they are both somewhat anti - heroes. Klaus has done many cruel things, and Katherine has also been self - serving. But when paired together in fanfiction, their love can be seen as a way to redeem them or at least make them more relatable. Writers can show how their love for each other changes them for the better or worse, and that's a really appealing concept for readers.
A popular plotline also deals with the future. After the baby is born, they think about how their lives will change. Will they move to a bigger place? How will they raise the child? These are all things that are often explored in Aarmau pregnant fanfictions. For instance, they might decide to raise the child in a more magical - influenced environment if their world has magic in it.