In general, Ash is often depicted as his adventurous and determined self. He might be shown as being a bit naive at times. Iris, on the other hand, is usually portrayed as strong - willed and feisty. However, it's important to note that spank fanfiction is not a typical or widely - accepted form of fanfiction and may contain elements that are not in line with the original characters' personalities in a more official sense.
You should also include some foreshadowing. Drop little hints throughout the story before the big betrayal. Maybe Iris has been acting a bit strange lately, or there have been some small disagreements between her and Ash that gradually build up to the ultimate betrayal. This will make the betrayal seem more natural and less out - of - the - blue for the readers.
One possible scenario could be that in this high school fanfiction, Ash and Serena form a team to compete against Iris in a Pokémon battle tournament organized by the school. Ash's experience and Serena's elegance might create a unique synergy that gives them an edge, while Iris with her strong and wild Pokémon could pose a great challenge. Maybe there are also some romantic subplots between Ash and Serena as they battle side by side, and their relationship might grow deeper during this rivalry with Iris.
The relationship can be developed through shared experiences. For instance, when they face a tough battle against a strong opponent. Ash could be knocked down, and Iris steps in to protect him. This shows her care for him. Then, Ash gets back up with new determination, impressing Iris. Another way is through communication. They can have deep conversations about their dreams for the future in Pokemon training.
One common theme is growth. They both grow as Pokemon trainers. For example, in many fanfictions, Iris becomes more confident in her skills and Ash learns new battle strategies from her. Another theme is friendship. Their bond is often explored, like how they support each other through tough times.
I'm not sure if there is specifically a 'Ash gets Iris pregnant' fanfiction. There are countless fanfictions out there, but this particular theme might be quite rare or even non - existent depending on the nature of the Pokémon fan community's standards and the general focus of fan - created stories. Fanfictions usually range from adventure - based to friendship - focused within the Pokémon universe.
Often, these fanfictions focus on the unique relationship between Ash and Iris. They might emphasize their different personalities, like Ash's determination and Iris's spunk. The stories usually have elements of adventure as both characters are from the Pokemon world.
The plot might revolve around a Pokémon sports day at high school. Ash and Serena join forces to take on Iris in a series of challenges. Maybe they compete in races where their Pokémon have to run or fly across the school grounds. Ash's Pikachu could be the star runner, while Serena's Pokémon might have some special abilities for the flying part. Iris, with her dragon - type Pokémon, could be a tough competitor. Their rivalry could be not just about winning but also about proving different Pokémon training methods are better.
They could be in a story where they have to rescue a group of lost Pokemon. Ash's Charizard could use its flying ability to scout the area, while Iris and her Pokemon skills and Cilan's knowledge of Pokemon behavior work together to find the lost Pokemon and bring them back to safety.
A fanfiction could revolve around a Pokemon tournament where Iris, Cilan and Ash (with his Charizard) are competing. However, there are some underhanded trainers trying to sabotage the event. The three of them must rely on each other and their Pokemon's abilities to expose the cheaters and still have a great showing in the tournament. Charizard's strength and loyalty to Ash play a crucial role in the story.