A common storyline is the cultural differences they might face in their marriage. Since Ash has traveled to so many different regions, and Serena has her own roots, there could be stories about how they blend their different traditions. Maybe Serena wants a traditional Kalos - style wedding, while Ash is more used to the simple ceremonies he has seen in other regions. They have to find a way to make both of their dreams come true for their big day.
One popular storyline could be their wedding day itself. It might describe in detail how Ash, who is usually more focused on Pokémon battles, is nervous yet excited as he waits for Serena at the altar. Another could be their life after marriage, like traveling together to new regions with their Pokémon, sharing new adventures and growing closer as a couple. There could also be a storyline where they face challenges together, such as dealing with a new powerful villain who threatens their family and friends, and how they use their combined skills and the strength of their relationship to overcome it.
When Ash presents Serena with a special gift during the wedding. It could be a flower crown made of the rarest flowers from all the regions they've visited together. Serena would be deeply touched because it shows how much Ash pays attention to their shared memories. Also, at the end of the ceremony, when they release a flock of Butterfree, just like when Ash released his first Butterfree. It symbolizes a new beginning for them, and this moment would be filled with a mix of nostalgia and excitement for their future together.
One possible plot could be that Ash finally realizes his true feelings for Serena after all their adventures together. They might return to a special place from their journey, like the Kalos region. Ash would plan a simple yet heartfelt proposal, perhaps involving their Pokémon. Then the wedding could be a grand affair with all their friends from different regions coming together. Their Pokémon would also play a part, like Pikachu being the ring - bearer.
One common storyline could be about their journey together as they prepare for the baby. It might include Ash being overly protective and Serena having to deal with her changing body and new emotions. Another could be a story set in a different Pokémon region where they face unique challenges as expectant parents, like dealing with new Pokémon species that are helpful or harmful during pregnancy.
One popular storyline could be Ash and Serena starting at a new Pokemon school together. They might face challenges like dealing with a strict teacher who doesn't believe in Ash's unorthodox training methods. Another could be a school competition where they team up against rivals. It could also involve Serena trying to start a Pokemon - related club at school and Ash being her biggest supporter.
Well, a great plot could be that they hold their wedding in a Pokemon - themed location, like a garden full of Pokemon - friendly plants. After marriage, they decide to train a new generation of Pokemon trainers. They pass on their skills and experiences, and at the same time, they also have to deal with the rivalries and jealousies of some other trainers who don't like their new - found influence in the trainer community.
Their Pokémon could be like family members in their married life. For instance, Pikachu might sleep at the foot of their bed, just like a pet. The Pokémon could also help with daily tasks. For example, Serena's Fennekin could use its Fire - type moves to help with cooking. And Ash's Greninja could assist in fishing by using its speed and agility to catch fish in a nearby stream.
A possible storyline could be that Misty and Serena accidentally find out about each other's feelings for Ash. So, they start a friendly competition where they try to do things that would make Ash notice them more. For example, Serena might practice harder for her Pokémon performances, and Misty could train her Pokémon to be even stronger to impress Ash.
Some fanfics focus on the relationship between Serena and Ash. They might write about how Serena finally confesses her true feelings to Ash in a really emotional and romantic way. There could also be a storyline where they get separated and have to find their way back to each other, facing many challenges along the way which test their bond.
One popular plot twist is when an old enemy returns to try and break up their marriage. It adds drama and conflict to the story. Another is when they discover a rare Pokemon that has the power to change their relationship in some unexpected way.
One possible storyline could be about Ash, Dawn and Serena forming a study group in high school. They each have different strengths and weaknesses when it comes to academics. Ash might be great at physical education but struggle in math, while Dawn could be excellent in art and Serena in literature. Through their study group, they not only help each other academically but also grow as friends. They could face challenges like a big exam coming up or a project that requires all of their skills combined.