I really like 'Elena and Elijah's Uncharted Journey'. This fanfic takes them on an adventure outside of Mystic Falls. It has a lot of great dialogue that makes their connection seem very real and deep. The author does a wonderful job of building the story around their relationship.
Well, first of all, Elijah would be by Elena's side all the time. He would help her with her daily needs, like getting things she needs or helping her move around when she becomes less mobile during the pregnancy. He would also share his knowledge of the supernatural world with her, so she can better understand what might be happening to her and the baby, and together they can prepare for any challenges that might come their way.
Love is a very common theme. Their relationship, whether it's a budding romance or a deep platonic love, is often explored. Another theme is the idea of sacrifice. Given the complex situations they are often in, one or both may have to sacrifice something for the other.
There's also 'Elena's Choice: Elijah or Else' which explores the idea of Elena having to make a difficult decision between Elijah and other aspects of her life. The story is filled with tension and drama.
There's a fanfiction called 'Elena, Bonnie and the Forbidden Spell'. It's quite engaging as it takes the two characters on a journey to break a powerful spell. Along the way, their friendship is tested and strengthened, and the author does a wonderful job of creating a vivid and immersive world for them to exist in.
A fanfiction could explore the idea that Elijah's desire for Elena is part of a bigger prophecy. Maybe there's a hidden message that says if Elijah and Elena are together, it will bring peace to the vampire and human world. So he's driven by this sense of duty as well as his personal feelings for her. This would lead to a lot of internal conflict for Elijah as he tries to balance his feelings with the potential consequences of their relationship.
One idea could be that Elijah tries to court Elena in a very old - fashioned and gentlemanly way. He might take her on trips to historical places he has known over the centuries, sharing his stories and knowledge with her. This would be a contrast to the other vampires' more aggressive approaches towards Elena.
Another theme is loyalty and betrayal. Given their complex relationships and the world they live in, there are often situations where loyalty is tested. For example, Elijah's loyalty to Klaus might be put to the test because of his feelings for Elena. And vice versa, Klaus might feel betrayed if Elijah gets too close to Elena.
One common theme is the protection of the baby. Given their supernatural world, there are always threats, and Elena and Elijah have to use their powers and wits to keep the baby safe. For example, in many stories, they face off against other vampires or witches who might want to harm the baby.
Another possible reason is the need for comfort. Elena has been through a lot in the supernatural world. Elijah, with his calm and collected demeanor, could offer her a sense of safety. A kiss might be a way for them to find solace in each other, especially in a fanfiction where emotions are heightened and the characters are constantly dealing with life - threatening situations.
A lot of fanfictions explore the idea of them building an unexpected friendship. For example, Elijah's old - world charm and Elena's determination might lead to some interesting interactions. They could start by just sharing stories about their families and pasts, which gradually deepens their bond.