Obviously, Lucy and Lincoln are the main characters. Lucy is the pet, and Lincoln is the owner.
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.
Well, Lucy is known for her growth throughout the series, and in fanfiction, she continues to develop, especially in relation to Yukino. Yukino, on the other hand, has her own set of skills and a somewhat reserved personality. Their interactions in the fanfiction can range from friendly rivalries to deep emotional bonds. For example, in some fanfictions, they might start as rivals for a certain magic item or a position in a magical competition, but then gradually become friends as they understand each other better.
Well, Starscream is obviously one of the main characters. And then there's the pet, which could be any number of things. It could be a small robotic creature, in which case the creator of that pet or the one who sent it to Starscream could also be important characters.
Itachi is often a central character in such fanfictions. His calm and intelligent nature would make his interactions with a pet very interesting. He might be more in tune with the pet's emotions and use his Sharingan to communicate with it on a deeper level.
Maybe there is a young wizard in training. The dragon's pet crosses his path and they form an unlikely bond. The wizard uses his growing magic skills to protect the pet from those who would harm it for its unique abilities.
Erza could also be a main character. Given her strong and motherly side, she would probably take on the role of taking good care of baby Lucy. She might be strict about following a routine for baby Lucy's care. Happy, the flying cat, could be another important character. He could use his unique abilities to search for clues on how to turn Lucy back to normal.
Obviously, Gajeel and Lucy are the main characters. Gajeel is often portrayed as a tough and strong character, while Lucy is more of a kind - hearted and intelligent one. In the context of this fanfiction, they are the ones going through the pregnancy journey.
The main characters are Lucy and Freed. Lucy is often portrayed as a strong - willed and kind - hearted mage. She has a collection of celestial keys which she uses to summon spirits for various purposes.
There could also be other supporting characters from the Fairy Tail guild. For instance, Mirajane might play a role in giving advice to Lucy about pregnancy and motherhood, since she has a nurturing side. And Makarov, as the guild master, could be involved in ensuring the safety of Lucy and the future of the guild with a new member on the way.
The main characters are Lucy and Wyatt. Their relationship is at the heart of the fanfiction. Their actions, emotions, and interactions, especially the kiss, drive the story forward. There may be other supporting characters, but Lucy and Wyatt are the ones that the story is mainly about when it comes to this particular aspect of the kiss.