Stefan might become more protective. His usually brooding nature could turn into a fierce determination to keep his family safe. Caroline, on the other hand, would probably become more nurturing. She was always strong - willed, but now she would focus that on taking care of the baby. She could also become more of a mediator between Stefan and any potential threats to their family.
It could start to develop in new ways. For instance, if they go back to a time when Stefan was still with Elena, Caroline might see a different side of him. This could either make her fall for him more or create some tension between them. But as they work through these issues, they could end up with a deeper and more complex relationship. They might also discover new things about each other that they didn't know before, like hidden fears or desires from their pasts, which would bring them closer together.
People write it because they are fans of the characters. They want to explore a more romantic and physical relationship between Stefan and Caroline that might not have been fully explored in the original show.
There is also 'The Unlikely Bond'. In this fanfiction, it starts with Caroline and Stefan being forced to work together on a school project. Their initial dislike for each other gradually turns into a deep connection as they discover more about themselves through the process.
I'm not sure which specific 'Caroline and Stefan' you are referring to. There could be many stories with characters named Caroline and Stefan. Maybe you can give some more context like what kind of story it is, from a book, a movie or a TV show?
Love and sacrifice are common themes. Often, one of them has to sacrifice something for the other, like Stefan might sacrifice his safety to protect Caroline. It shows the depth of their love.
Well, if we assume Stefan and Caroline are from 'The Vampire Diaries'. Stefan was a vampire with a complex past. He and Caroline had a relationship that developed over time. Caroline started as a human and later became a vampire. Their relationship grew from friendship, through many challenges in the world full of supernatural beings in Mystic Falls. They supported each other through tough times and their story was intertwined with the battles against other vampires, werewolves and witches in the show.
The timing of Ryou and Ichigo getting together varies greatly in fanfiction. It could be as soon as the beginning or might not happen until the climax. It all depends on the author's imagination and the plot they want to create.