It's completely unacceptable. Pokemon has a set of values associated with it, such as friendship, adventure, and positive values. Erotic content related to its characters goes against these values and can have a negative impact on the fan community. Moreover, it may also violate the terms and conditions set by the Pokemon Company.
In a more complex fanfiction, Lucario and Gardevoir are from different social groups within the Pokemon world. Lucario is part of a group that values strength and combat, while Gardevoir is from a more peaceful, psychic - centered group. When a mysterious force starts to disrupt the balance between these groups, they are forced to work together. At first, they have a hard time understanding each other's ways, but as they face challenges like rescuing kidnapped Pokemon from the mysterious force, they learn to appreciate each other's strengths and ultimately bring peace between their groups.
One great fanfiction idea could be a story where Lucario and Gardevoir team up to save a forest that is being threatened by a powerful and evil Pokemon. Lucario could use its fighting and sensing abilities, while Gardevoir uses its psychic powers to combat the foe.
Some fanfictions could focus on their evolution journey. For example, how a Kirlia decides to evolve into Gardevoir or Gallade based on different circumstances. It could be a story of self - discovery and choice, where the Pokemon's personality and experiences play a crucial role in the evolution decision.
In Pokemon Diantha and Gardevoir fanfiction, the setting can also be a major factor. It could be set in the bustling Lumiose City, where Diantha is often seen. Gardevoir would stand out among the city's lights with its graceful presence. Or perhaps the story takes place in a more mysterious, uncharted area, where they must rely on each other to survive. The possibilities are endless when it comes to creating a fanfiction world for them.
There's a fanfic called 'Gardevoir's Adventure'. It's interesting as it shows Gardevoir from a different perspective, exploring the Pokemon world on its own. The descriptions of the environments are quite vivid.
Gallade and Gardevoir fanfictions often explore their relationship with their trainers in unique ways. A trainer might have a special bond with one of them, like a trainer who has a Gardevoir that was his first Pokemon. This Gardevoir could be extremely protective of the trainer and their adventures together could be filled with heart - warming moments.
There's also a series on Archive of Our Own that delves into the concept of a male Gardevoir. It's interesting because it not only focuses on the Pokemon itself but also on how other characters in the Pokemon universe interact with it. The author does a great job of creating a believable world around the male Gardevoir.
Unique characterizations can make it interesting. For example, if the author gives the Shiny Gardevoir a distinct personality, different from the typical portrayal in the games or anime. Maybe it's more mischievous or has a deeper emotional side.
One common theme is loyalty. They are both likely to be loyal to their trainers and to each other in the fanfic. Another theme could be the power of psychic abilities. Since they are both psychic - type Pokemon, the fanfic might focus on how they use their powers in different ways.