One interesting plot point could be the reactions of their Pokémon. For example, Pikachu might be a bit jealous at first because Ash is spending so much time with Cynthia. Another plot point could be the cultural differences between Kanto (where Ash is from) and Sinnoh (Cynthia's region). They could incorporate elements from both cultures into the wedding. Also, a plot point could be the challenges they face before the wedding, like an evil team trying to disrupt the event because they fear the power of their combined Pokémon knowledge and skills.
In a world where Pokémon trainers' dreams come true, Ash and Cynthia's wedding was the event of the century. Ash had finally realized his feelings for Cynthia were more than just friendship. He proposed to her on top of a mountain overlooking a vast Pokémon - filled landscape. For the wedding, they chose a grand hall decorated with crystals and Pokémon - themed ornaments. The guests included all their friends from different regions. Ash walked Cynthia down the aisle, and they exchanged rings. Their Pokémon joined in the celebration, making it a truly unique and joyous occasion.
I'm not sure if there is such a specific fanfiction. Fanfiction can cover a wide variety of scenarios, but this particular one might be a bit unusual or not very common. You could try searching on major fanfiction websites to see if it exists.
One interesting plot point could be how they handle their different Pokémon - training styles. Ash is more impulsive and befriends Pokémon easily, while Clair is more traditional. Their marriage could be a journey of learning from each other in that aspect. Another could be dealing with family reactions. Ash has his mom and friends, and Clair has her family in the Dragon's Den. How they all react to the marriage and blend their families could be really engaging.
Another plot could be that Ash enters a high - stakes Pokémon tournament in Cynthia's region. Cynthia becomes his mentor, teaching him advanced strategies, and they develop a strong friendship along the way.
One interesting plot point could be the reactions of their friends and allies. How would the members of the Occult Research Club respond? Another could be the challenges they face in planning a wedding that suits both their demon and human - influenced cultures. For example, they might have to deal with traditional demon wedding customs that Issei is not familiar with.
A great plot point would be the exploration of their past traumas. Severus has his childhood issues and his complicated relationship with Lily, and Sirius has his family problems and his time in Azkaban. In the fanfiction, their marriage could be a way for them to heal each other. They could support each other through nightmares and flashbacks. Additionally, a plot point could be their participation in wizarding politics together. As a married couple, they could advocate for new laws or reforms in the wizarding world, like better treatment for werewolves or more inclusive education at Hogwarts.
A possible plot could be that a magical event causes Ash and Cynthia to be magically linked to a baby in a mysterious way. They have to travel to different regions to find a way to break the link if they want to continue their normal lives. But during this journey, they start to form a strong bond with the baby and question if they really want to break the link after all.
Another interesting plot could be a time - travel story where Ash and Cynthia are sent back in time to the early days of the Pokémon world. They have to adapt to the different rules and ways of training Pokémon back then while also trying to find a way back to their own time.
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.
Maybe there's a plot where they have a secret wedding ceremony in a magical place, like a hidden grove in the forest that only Merlin knows about. And then they have to deal with the implications of being married while still maintaining their public personas in Camelot.