Perhaps they would talk about Klaus's redemption arc in the fanfiction. If there is one, Caroline could discuss with Hope how Klaus was changing or trying to atone for his past sins. This would be an important conversation for Hope as she would want to know if her father was capable of change.
They could be talking about Klaus's enemies. Caroline has seen Klaus deal with many foes, and she could share those stories with Hope. This would give Hope a better understanding of the dangerous world her father was a part of and how he managed to survive all the threats against him.
One topic could be Klaus's art. Since Klaus was into art, Caroline could tell Hope about the side of her father that was an artist. Hope would be interested in knowing this aspect of Klaus as it shows a different side of him other than being a powerful vampire.
They could discuss Klaus's relationships. Caroline might mention how Klaus's love for her was different from his other relationships. Hope could then ask about how Klaus was in his relationships before she was born. Also, they might talk about Klaus's family and how his upbringing affected his actions.
Caroline as a human in fanfiction with Klaus can create a really interesting dynamic. It allows for exploration of how a human might interact with a powerful vampire like Klaus. For example, she could be a source of light in his dark world, constantly challenging his views.
It could lead to a whole new dynamic in the story. Maybe it would bring them closer or cause a lot of drama and complications.
There's also 'The Unlikely Bond'. This fanfiction delves deep into how Caroline and Klaus might interact outside of the main plot of the show. It shows their different personalities clashing and then gradually coming together in a really engaging way. It's full of great dialogue and some really sweet moments between them.
Klaus shows his love by protecting Caroline. He would always be there to save her from any danger, whether it's from other vampires or supernatural threats.
Klaus would be very attentive to Caroline's pregnancy cravings. He'd see it as his duty to take care of her during this time. He might cook for her himself if he can, or take her to the best restaurants to get what she wants. He would be a bit overprotective too, making sure that whatever she eats is of the highest quality and safe for her and the baby. He'd also listen intently to her when she talks about her cravings, finding it endearing and a sign of the new life growing inside her.
Klaus might be overjoyed. He has always been attracted to Caroline, and having a baby with her could be the ultimate sign of their connection. He would probably be very protective, using all his power and resources to keep her and the unborn baby safe.
Their relationship could become more intimate as they bond over the baby. They might start to see each other in a new light, with Klaus showing a more tender side and Caroline learning to trust him more deeply.
It could become more intense. They now have a shared responsibility, so they might be more connected. Klaus might be more tender towards Caroline, and Caroline might start to see Klaus in a different light, perhaps more as a partner rather than just an acquaintance.
Stefan could also play a role. Since he and Caroline are friends and he has a history with Klaus, he might step in to try and stop the marriage. He could try to negotiate with Klaus or find some other way to free Caroline.