Under the training tree

After his journey in Unova, Ash left his Pokémon in the Professor Oak's laboratory. They continued with their lives for a while, until one day, one of them, Oshawott, wanted to start a conversation with Snivy, who was training with a tree. That encounter was just the beginning of something new. (One-shot) (ShellPWNageShipping/Snivy x Oshawott)