Well, it could be about Lucy being a unique and special pet in Lincoln's life. Maybe she has some extraordinary abilities that help Lincoln in various situations, like solving mysteries around their neighborhood or helping him make new friends at school.
In this fanfiction, perhaps Lucy is a very intelligent pet. She might be able to understand complex things that Lincoln is dealing with, like his problems at school or with his family. So, she becomes his confidant. The story could also show how their relationship evolves over time, starting from when Lincoln first gets Lucy as a pet, and how they grow to depend on each other more and more.
The plot might involve Lucy having a really strong bond with Lincoln. For example, she could be a magical pet that can communicate with Lincoln in a special way. And they go on adventures together, where Lucy uses her pet - like instincts combined with her magical powers to get them out of trouble. It could also be about how Lincoln takes care of Lucy and the lessons he learns about responsibility through their relationship.
Obviously, Lucy and Lincoln are the main characters. Lucy is the pet, and Lincoln is the owner.
The plot could involve them preparing for the arrival of the baby. They might start looking for a new place to live, something more suitable for a family. There could also be some drama, like an enemy from their past resurfaces and they have to protect not only themselves but also their unborn child.
One possible plot could be that Gray kidnaps Lucy as part of a misguided attempt to protect her from an unknown danger. He might think that by taking her to a secluded place, he can keep her safe from a powerful enemy that is targeting her.
The plot could involve Naruto being sent to Fiore as part of a diplomatic mission on behalf of the Hidden Leaf Village. There, he meets Lucy at the Fairy Tail guild. At first, the members of Fairy Tail are a bit skeptical of Naruto. But Naruto's determination and his cool ninja abilities start to win them over. Lucy and Naruto bond over their shared experiences of losing loved ones. They then go on an adventure together to stop a dark force that is threatening both their worlds.
Well, perhaps in a fanfiction, there is a powerful magic that links the Naruto universe and the Fairy Tail universe where Lucy is from. Naruto is on a mission to understand this new magic when he meets Lucy. They initially have misunderstandings but as they learn about each other's worlds and goals, they start to fall for each other. The kiss could be a moment of realization of their feelings during a battle where they protect each other. This kind of plot would blend the elements of both universes in an exciting way.
Perhaps Natsu kidnaps Lucy as a prank that goes wrong. He initially thinks it'll be a funny joke, like taking her away during a guild party just for a bit of chaos. But then things get out of hand. Lucy might be really angry at first, but as they are alone together, they start to have some deep conversations and understand each other better.
The plot could involve jealousy. Lucy might become jealous of Lisanna as she takes over her position in the guild. This could drive Lucy to train harder and become more independent. Maybe she'll find a new group of friends or allies who see her value outside of the guild.
Maybe it could be about Lucy's journey in raising the baby, like all the challenges she faces, from sleepless nights to learning how to feed the baby properly.
One possible plot could be that Lucy, from another dimension or world, accidentally ends up in the Naruto universe. Naruto, being the curious and friendly ninja he is, befriends her. As they go on adventures together, they gradually develop feelings for each other and end up sharing a kiss. Maybe they have to face some common enemies or overcome cultural differences along the way.
One possible plot could be that Daniel and Lucy face unexpected challenges during the pregnancy. Maybe they have to deal with financial difficulties while preparing for the baby. They could also struggle with family reactions, like Lucy's parents being initially against the idea of them having a baby so young.