One possible non - sexual fanfiction could be about Ash and his adventures with all the Eevee evolutions. They could be on a journey to save a special Eevee from an evil team. Ash would use his skills and the unique abilities of each Eevee evolution like Vaporeon's water powers to cross rivers, Jolteon's electricity to power up old machines, and Flareon's heat to keep them warm in cold areas.
Some fanfics might have Eevee evolving into a form that combines two existing evolutions, like a mix of Jolteon and Flareon. This could be due to some strange scientific experiment in the fanfic's plot.
A family - friendly fanfiction might have Ash and the Eevee evolutions teaming up to solve a mystery in a forest. They might discover an ancient Pokémon relic. The Eevee evolutions like Vaporeon could use its fins to dig in the water near the relic site, and Jolteon could use its speed to quickly search the surrounding areas for clues.
One idea could be a story where a female Eevee evolves into Sylveon in a lemon grove. The sweet scent of the lemons could have some sort of magical influence on her evolution. Maybe it gives her powers related to the freshness and energy of the lemons, like the ability to heal others with a touch that smells like lemon blossoms.
First, decide which female Eevee evolution you want to focus on. If it's Espeon, for example, you could start with the Eevee being drawn to a mysterious lemon - scented glade. Describe how the scent makes her feel curious and a bit uneasy. Then, you can start building the connection between the lemon - scented environment and her evolution into Espeon. Maybe the lemons have some sort of psychic energy that triggers her latent psychic abilities.
The possible offspring of a male and female Eevee could be any of its evolved forms depending on various factors in the Pokémon world. For example, if it's exposed to a water stone, it could evolve into Vaporeon. Eevee has a diverse genetic makeup that allows for multiple evolutionary paths.
Fanfiction writers sometimes give Ash's Pokemon mega evolutions that are related to the environment or a specific location. For example, if Ash is in a snowy area, his Snorunt could mega evolve into a form that is better adapted to the cold. It could have ice - based attacks that are more effective in the frigid climate, and its body might be covered in a thicker layer of ice for protection. This kind of portrayal adds an interesting layer to the story and the battles that Ash participates in.
In fanfictions, they often portray their emotions through body language. For example, the male Eevee might wag its tail more when it's around the female Eevee it likes. The female Eevee could nuzzle up to the male to show affection.
There are fanfictions where male and female Eevee love is depicted in a more comical way. For instance, the female Eevee is always chasing the male Eevee around because she has a crush on him, but the male Eevee is a bit clueless at first. As the story progresses, he finally realizes her feelings. And then there are those that delve into their different evolutions and how that might affect their relationship, like if one evolves into a Vaporeon and the other into a Jolteon, and how they still manage to love each other despite their differences.
The male Eevee might start off as a loner. But when he meets the female Eevee, he begins to change. He could develop a sense of loyalty towards her. The female Eevee, on the other hand, could be very social and introduce the male Eevee to new friends in the Pokémon community. This new social circle could put pressure on their relationship in some ways, but also help them grow. For example, they might have to deal with jealousy from other Pokémon who like either the male or female Eevee. Through these experiences, their characters can be further developed.