Well, clearly Billie and Jack. Billie is known for her role in the supernatural realm, especially when it comes to matters of life and death. Jack, on the other hand, is a character full of potential and mystery. Fanfiction writers like to play with their personalities and develop stories around how they interact with each other, the other characters in the 'Supernatural' universe, and the various threats and situations they face.
One interesting fanfiction could be about Billie and Jack teaming up to solve a mystery in the supernatural world. Maybe they are trying to figure out the origin of a new and dangerous entity that is causing chaos.
Jack, a young and brave human, and Arcee, the intelligent and powerful Cybertronian, are the central figures. Since it's about a baby, they will probably have to interact with other characters like the other Autobots who may offer help or advice on taking care of the baby.
The main characters are Naruto and Jack Zamma. Naruto is a well - known ninja from the Naruto series, with his signature orange jumpsuit and powerful jutsu. Jack Zamma, on the other hand, has his own set of unique abilities that make him an interesting character to pair with Naruto in this fanfiction.
Jack and Elsa are the central figures. Jack, with his mischievous yet kind nature, and Elsa, who has grown from a scared girl into a confident queen. In the fanfiction, they are the ones whose relationship is at the core, as they fall in love and get married.
The main characters are obviously Jack and Angelica. Jack, the swashbuckling pirate, and Angelica, who has her own complex personality and relationship with Jack.
Jack, who might be a character full of curiosity and a sense of adventure. And Arcee, she could be a strong, intelligent character. They are the two central figures around which the story of the fanfiction, especially the kiss part, revolves.
In this fanfiction, Marshmallow could be a significant character. He's a large and somewhat intimidating snow creature created by Elsa. But with the baby on the way, he could become a gentle protector. He could stand guard outside their home to keep any potential threats away. Also, the trolls from the Frozen universe could play a role. They are wise and could offer their knowledge on how to take care of a baby with magical powers. They might even perform a special ceremony for the unborn baby.
Maybe there's an antagonist, like a dark bender who has turned to the wrong side and uses their powers for evil. This character would create conflict for the main bender characters, constantly challenging them and trying to disrupt the balance in their world.
In some Sam and Jack pregnant fanfictions, other characters from their original universe might also play important roles. For example, their colleagues or friends could be there to support them during the pregnancy. These characters can add more drama and depth to the story. They might offer different perspectives on Sam and Jack's relationship and the upcoming baby.
Jack is likely to be a character who has his own story arc outside of this love story as well. Solus Prime might be a more powerful or mysterious figure. Their combination in this fanfiction makes for an interesting pair as the main characters.