They could be rivals at first. Maybe they are both after the same magical artifact for different reasons. The Female Dragonborn wants it to increase her power and use it to protect her people, while Serena needs it to break a curse on her family. They constantly try to outwit each other until they realize that the real enemy is the dark wizard who also has his eyes on the artifact. Then they join forces.
The fanfiction could revolve around a prophecy that involves both Serena and the Female Dragonborn. They are initially unaware of each other's role in the prophecy. As the story unfolds, they start to have strange dreams and visions that lead them to meet. When they finally come together, they find that their combined powers are the key to fulfilling the prophecy and saving their world from a great evil. Along the journey, they face internal struggles as well. The Dragonborn struggles with her identity as a half - human, half - dragon, and Serena has to overcome her fear of the unknown powers she discovers within herself.
In a fanfiction, Serena and the Female Dragonborn could come from different worlds. Serena from a more civilized and political realm, and the Female Dragonborn from a land of magic and mythical creatures. Their paths cross when Serena is seeking help to deal with a political conspiracy in her own land. The Female Dragonborn, being a hero in her own right, decides to assist. They embark on a journey that not only helps Serena's land but also changes both of them. The Dragonborn learns about the complex politics of Serena's world, and Serena discovers the power and freedom of the Dragonborn's world.
One possibility in Tinkerbell - Vidia fanfiction is that they form an unlikely alliance. Vidia, known for her independence, might find herself in a situation where she needs Tinkerbell's help. For instance, if she gets trapped in a part of the forest she's not familiar with and Tinkerbell uses her tinkering skills to free her. This could be the start of a new friendship.
They could be unlikely allies in a fanfiction. Agent 8, being new to the scene, might initially be distrusted by Agent 3. But as they face a common enemy, they start to work together. For instance, a powerful foe emerges that neither can defeat alone.
A simple fanfiction could be that Greninja and Delphox are forced to be allies when their trainers are kidnapped by an evil organization. They have to put aside their differences and work together to rescue their trainers. Greninja uses its agility to scout the enemy base, while Delphox uses its fire attacks to create distractions.
Maybe in a fanfiction, Pikachu and Fennekin find themselves in a strange, magical forest. They have to rely on each other to find their way out. Pikachu's ability to sense electricity in the air helps them avoid dangerous areas, and Fennekin's sense of smell leads them to sources of food. Their journey through the forest strengthens their bond.
In a more complex fanfiction, Lucario and Gardevoir are from different social groups within the Pokemon world. Lucario is part of a group that values strength and combat, while Gardevoir is from a more peaceful, psychic - centered group. When a mysterious force starts to disrupt the balance between these groups, they are forced to work together. At first, they have a hard time understanding each other's ways, but as they face challenges like rescuing kidnapped Pokemon from the mysterious force, they learn to appreciate each other's strengths and ultimately bring peace between their groups.
A simple fanfiction could be that Chespin and Fennekin are forced to work together in a Pokemon rescue mission. They initially don't get along due to their different natures, but as they face challenges like rescuing trapped Pokemon from a collapsing cave, they start to understand each other's strengths. For example, Chespin can dig through rubble with its sharp claws and Fennekin can light up the dark areas with its flames.
They could be unlikely allies. Maybe in a world where the Pokémon ecosystem is out of balance, Arceus, the symbol of order, teams up with Silvally, a Pokémon with a complex past. Together, they might restore balance, with Arceus guiding Silvally's actions and Silvally using its strength to carry out Arceus's plans.
Yes, they could be unlikely allies. Naruto's superhuman abilities from being a ninja and Jessica's detective skills and super strength could combine in a unique way. Maybe Naruto needs help finding a missing person in Jessica's world, and she enlists his help because of his tracking skills. Together, they would make a formidable team.
They could be in a fanfiction where they are forced to work together against a common enemy like a powerful trainer who wants to capture them both. Pikachu's speed and strong electric attacks combined with Pachirisu's cute charm and quick thinking can make for an interesting dynamic.