The development could also be linked to their growth as individuals. As Ash becomes a more experienced trainer and Snivy evolves or becomes stronger, they can start to see each other in a different way. They might have conversations about their dreams and goals, and find that they are more compatible than they thought. This realization can slowly turn into romantic feelings over time. Also, their relationship can be influenced by the Pokémon around them. If other Pokémon in their team start to notice their special bond, it can act as a catalyst for them to explore their feelings further.
It should start with a strong foundation of friendship. They need to have mutual respect for each other. For example, Ash should respect Snivy's decisions during battles and Snivy should respect Ash's leadership. Then, small moments of kindness and care can be added, like Ash sharing his food with Snivy or Snivy protecting Ash from minor threats.
To develop their relationship realistically, start with them getting to know each other's personalities. For example, Ash could share his dreams about becoming a Pokémon Master, and Elesa could talk about her love for fashion and how it relates to her Pokémon. Then, have them go through some small challenges together, like training a difficult Pokémon or helping a lost Pokémon find its way home. These shared experiences will gradually bring them closer.
Writers often depict Ash and Snivy's relationship as a partnership based on mutual respect. Ash respects Snivy's intelligence and independence, while Snivy respects Ash's leadership as a trainer. For example, in some fanfictions, Snivy will make its own decisions during battles, and Ash trusts it completely.
To develop their relationship realistically, communication is key. Since Gardevoir can be quite empathetic, it can pick up on Ash's emotions. Ash, on the other hand, should show respect for Gardevoir's power and intelligence. They could start with small moments of connection, like Ash sharing his food with Gardevoir, and gradually build up to more complex emotional bonds as they journey through different regions and face various challenges together.
A common theme is friendship. Ash and Snivy's relationship is often explored, showing how they become friends and rely on each other. Another theme is growth, like Snivy evolving or Ash becoming a better trainer through their experiences together.
Perhaps in the fanfiction, Snivy gets injured while protecting Ash from a powerful enemy. Ash then takes care of Snivy, and during this time of recovery, they share many tender moments. Snivy starts to see Ash in a new light, and Ash discovers that his feelings for Snivy are more than just friendship. They then have to deal with how this new relationship will affect their Pokémon - training and adventure - filled lives.
One of the things that could make it interesting is the way it can expand on the Pokémon world. With 'ash's snivy fanfiction', we might get to see different perspectives on training, battles, and the bond between trainers and Pokémon. It could also introduce new ideas about how Snivy interacts with its environment and other Pokémon. There could be stories about Snivy's past that were never revealed in the original, or how it came to be with Ash in a more detailed and unique way compared to the main storyline.
A common theme is growth. The female Snivy often grows in strength and character as she travels with Ash. For example, in many fanfictions, she starts as a weak or inexperienced Pokemon and through their adventures, she becomes more confident and powerful.
Well, in a lot of'snivy x ash fanfiction', the theme of trust is prominent. They need to trust each other in order to face the challenges that come their way. For instance, when they encounter a powerful enemy, they have to trust that the other will do their part. And there's also the theme of discovery, both in terms of new Pokémon species and also about themselves and their relationship.
One great Ash and Snivy fanfiction is 'The Adventures of Ash and Snivy'. It shows their journey through different regions together, with Snivy evolving in unique ways. Another one is 'Ash and Snivy: Unlikely Allies' which focuses on how they overcome difficulties in battles by using their combined skills.
Archive of Our Own (AO3) is also a great place. There are many well - written and diverse 'ash x snivy' fanfictions. The tagging system makes it easy to find the ones that suit your taste.