Well, a great storyline might be about a prophecy that involves both Lucy and Cynthia. According to the prophecy, only they can save the Pokemon world from a great evil that is slowly emerging. They initially doubt their abilities and each other, but as they face different trials and tribulations, they grow closer and stronger. They travel to different regions, gathering allies among Pokemon and trainers alike, and finally face the great evil in an epic battle that tests their skills, friendship, and the very essence of their beliefs in the Pokemon world.
One possible storyline could be Cynthia exploring the Kanto region in Pokemon Red. She might be on a quest to study the unique Pokemon there, like how they differ from Sinnoh's Pokemon. Another could be her teaming up with the protagonist of Pokemon Red to take on a new, powerful villain that threatens both regions.
Another common one is a romantic storyline where Ash and Cynthia develop feelings for each other during their adventures. This often involves them sharing personal stories and having heart - to - heart conversations while traveling together. They might also exchange Pokemon as a sign of their growing bond.
A really interesting plot could be that there's a strange phenomenon causing Pokemon to lose their powers randomly. Ash and Cynthia have to figure out the cause together. Along the way, they discover some long - forgotten secrets about the origin of Pokemon powers. Their journey involves visiting ancient ruins, talking to wise old Pokemon trainers, and facing off against some bad guys who are trying to take advantage of the situation.
Another popular idea is a love - story - type plot. In the fanfiction, Ash and Lucy gradually fall in love as they share adventures. They start off as friends or acquaintances, but as they face challenges together, like helping a lost Pokemon find its family, their feelings for each other grow deeper. This can lead to cute and romantic moments between them, such as sharing a special moment under a starlit sky while camping in the Pokemon world.
Perhaps a plot where a dark force is corrupting Pokemon in both the Kanto and Sinnoh regions. Red and Cynthia are brought together by a prophecy. They start their journey separately but gradually realize they need to work together. Red's ability to adapt quickly and Cynthia's calm and strategic mind help them face challenges like battling against the corrupted Pokemon and finding the source of the dark force.
Another storyline could be that Cynthia discovers a lost Pokémon that has a special connection to Ash's past. They embark on a journey to learn more about this Pokémon and along the way, they face various challenges and form a deeper friendship. Ash's determination and Cynthia's expertise make them a great team in this story.
Lucy and Cynthia are the stars, no doubt. However, in some fanfictions, the antagonists can also be popular. These are the characters who oppose Lucy and Cynthia, whether they are evil trainers trying to take over the Pokemon world or mysterious forces causing chaos. Their complex motives and powerful Pokemon make them interesting. And of course, any Pokemon that has a special role, like a legendary Pokemon that Lucy and Cynthia have to protect or a Pokemon with a unique ability that helps them in their journey, can be very popular among readers.
Maybe there's a storyline where they have to face an enemy together as a married couple. This enemy could be a powerful Pokemon trainer or an evil organization that threatens their relationship and the Pokemon world. And they use their combined skills and the bond of their marriage to defeat the enemy.
One plot idea could be that Cynthia and Dawn team up to explore a new and mysterious region in the Pokemon world. They encounter a rare and powerful Pokemon that no one has ever seen before. Along the way, they face challenges from a new villainous team who wants to capture this Pokemon for their own evil purposes.
Well, a cool plot could be that there's a strange distortion in the Pokemon world that pulls Red and Cynthia together. They initially clash because of their different approaches to training, but as they face various challenges like a powerful villain with a new type of Pokemon, they start to respect and learn from each other. Maybe there's also a sub - plot where they both have to deal with their own personal Pokemon that have some special connection to the events. For example, Cynthia's Garchomp and Red's Pikachu might have some unique interactions.