Some fanfictions focus on the idea of a soulmate connection between them. It's like they are meant to be together from the start. This often involves elements like shared dreams or a special bond that only they understand. There are also themes around jealousy, like when other characters show interest in either Ash or Lillie and how they deal with it in the context of their relationship.
A common theme is also the idea of them helping each other grow. For instance, Ash could help Lillie overcome her fear of Pokémon, and in return, Lillie could offer Ash emotional support. Also, there are fanfictions where they are in a secret relationship and have to hide it from others, which adds an element of mystery and drama.
A common theme is the exploration of their individual growth within the group. For instance, Lillie might overcome her shyness with the help of Ash and Mallow. Also, there are fanfictions that focus on their teamwork against powerful opponents. They might combine their different skills and Pokemon to defeat a difficult enemy. It's interesting to see how different authors play with these elements.
A popular theme is the power of unity. Ash, Lillie and Manaphy might face a powerful enemy, and only by working together can they overcome it. This shows how their combined strength, both physical and emotional, is greater than the sum of their parts.
I'm not aware of any particularly popular ones off - hand. Fanfiction is a vast world, and while there might be some great 'ash and lillie betrayed' stories out there, it's hard to single out popular ones without doing a more in - depth search.
One popular theme is their friendship. They are often shown supporting each other through tough times. For example, when Lillie was afraid of Pokemon at first, Ash was there to encourage her. Another theme is their growth as trainers. They both learn new skills and strategies from their encounters.
One common theme is growth. Both Lillie and Ash grow as trainers and as people through their relationship. Another is friendship, as they support and care for each other. And often there's an element of adventure, as they go on Pokemon - related adventures together.
One common theme is growth. Both Ash and Lillie grow as individuals and as a couple. Ash might become more in tune with his emotions, while Lillie becomes more confident. Another theme is adventure. Their love often blossoms during their Pokemon - related adventures, exploring new places and encountering new Pokemon.
Adventure is also a big theme. They go on various quests together, exploring new regions and facing different Pokemon. Sometimes, the theme of redemption also appears, especially if the fanfiction is set around a 'bad' Mewtwo that is redeemed through its interactions with Ash and Lillie.
One common theme is growth. Both Ash and Lillie often grow as characters in these fanfictions, whether it's in their Pokémon training or in their relationship with each other.
One popular theme is adventure. Ash and Lillie might go on various quests together in the Alola region, exploring new places and encountering different Pokemon. Another theme is friendship. Their relationship could develop from just being acquaintances to really close friends who support each other through thick and thin. Also, growth is a common theme. Lillie might overcome her shyness and fear of Pokemon with Ash's help, while Ash could grow in his understanding of different cultures in Alola through his interactions with Lillie.
One common theme is growth. Both characters grow in their relationship. Ash becomes more in - tune with Lillie's needs and feelings, and Lillie becomes more confident with Ash by her side. Another theme is the exploration of the Alola region. Their love story is often intertwined with the discovery of new places and Pokémon in Alola.