Perhaps the 'joey x rattata fanfic' could be set in a world where Rattata are extremely rare. Joey, a Pokémon trainer, goes on a quest to find a Rattata. Along the way, he discovers the unique abilities of Rattata and how it can change his whole training strategy.
Joey could start as a timid trainer and become more confident as he bonds with Rattata. Rattata, on the other hand, might start off as a wild and skittish Pokémon but become more loyal to Joey over time.
One possible plot could be that Joey is challenged by an evil chef who uses dark magic in his cooking. This chef wants to take over the world's best kitchens, and Joey, being the food - loving guy he is, decides to stop him. He teams up with his Yu - Gi - Oh friends, and they use their combined skills, including Joey's cooking skills and their dueling abilities. Joey might even create special dueling dishes that can give him an edge in battles against the chef's minions. Along the way, they discover new cooking techniques and ingredients that are unique to the Yu - Gi - Oh world, and Joey's character could grow as he learns more about the power of food and friendship.
One possible plot could be about a family that adopts Joey. Maybe they discover his love for Duel Monsters and support his journey to become a better duelist. They could help him get new cards or enter into big tournaments.
The plot could revolve around the babysitter's dream of being like Joey in the Yu - Gi - Oh world. While taking care of the kids, the babysitter might share with them how Joey's determination and courage inspired them. They could then play pretend Yu - Gi - Oh battles, with the babysitter taking on the role of Joey, teaching the kids important values through the game.
Another theme is self - discovery. As they interact more, both Kaiba and Joey often learn more about themselves. In some fanfics, they realize that the qualities they hated in each other are actually things they can learn from. It's like a journey of personal growth for both of them.
One common theme is rivalry - their long - standing competitive nature in the Duel Monsters realm. This often serves as a starting point for the relationship to develop.
One possible plot could be that Joey and Phoebe decide to raise the baby together as friends. They face the challenges of pregnancy like doctor's appointments and cravings. They also deal with the reactions of their other friends in the group, some being supportive and others being a bit shocked at first.
One common theme could be friendship. Their relationship might be explored in terms of how they support each other through various situations.
A common theme could be the exploration of their relationship dynamic. Given their different personalities in the original Yu - Gi - Oh! series (assuming they are from there), fanfics might focus on how they overcome their differences. For example, Seto's cold and calculating nature vs Joey's more hot - headed and impulsive one.
One common theme could be friendship evolving into something more. Since they start as friends in the original show, fanfics might explore how that relationship deepens romantically. Another theme could be the struggle with their new - found feelings, like how they deal with the reactions of their other friends, like Ross or Phoebe.