A'stuck fanfic' is a type of fan - created story. It usually involves characters getting into a situation where they are, well, stuck. This could be physically stuck like in a small space, or metaphorically stuck in a difficult situation within the fictional world. For example, in some superhero fanfics, the hero might get stuck in a time - loop or a magic spell that restricts their movement, and the story then unfolds around how they try to get out of that'stuck' situation.
They might encounter advanced Pokémon species that don't exist in their time. For example, new evolutions or completely new types of Pokémon. This could lead to new adventures and challenges as they try to understand and befriend these Pokémon.
Obviously, Ash would be the main character as he is the one stuck in the costume. His Pokémon like Pikachu, Bulbasaur, and Charmander could also be important characters. They could be the ones trying to help Ash get out of the costume, using their different abilities.
Perhaps Ash is at a Pokémon festival and gets stuck in a traditional costume. He then has to go on a mini - adventure within the festival grounds to find someone who can help him out of it. Along the way, he meets new Pokémon and trainers, and they all work together to free him. This could also be a chance for Ash to learn more about the local Pokémon culture.
In this fanfiction situation, they could end up using their knowledge of the future to help people in the past. For example, Ash could use his Pokémon training skills to solve some problems that people in the past were having with wild Pokémon. Serena could perhaps use her cooking skills to introduce new recipes. And together, they would be constantly looking for clues or a magical item that could send them back to their time.
Perhaps in this fanfiction, the main antagonists are people from the past who are threatened by Ash and Serena's presence. They see them as a danger to their way of life or their power. For example, a local tyrant in the past might not like Ash's ideas about fairness and equality when it comes to Pokémon training. Serena's modern - style cooking might also be seen as a threat to local food traditions, so those who uphold these traditions could oppose them and become antagonists.
Ash would probably start by exploring the new Pokémon world around him. He's always been curious, so he'd want to see what kind of Pokémon are in the future. Serena might be a bit more cautious at first, but she'd follow Ash. Maybe they'd find a Pokémon center or a trainer's guild to get some information.
A 'fanfic' is a fan - created work based on an existing story. 'Stuck in glue' fanfic might be about characters who find themselves in a situation where they are, metaphorically or literally, stuck in glue. It could involve various scenarios like a comical situation where characters are immobilized by the glue, or perhaps a more complex plot where being stuck in glue is a symbol for being trapped in a difficult situation within the fictional world.
I'm not entirely sure specifically what a'mlp stuck fanfic' is without more context. 'MLP' usually refers to 'My Little Pony'. It could potentially be a fan - written story where a character in the My Little Pony universe gets stuck in a particular situation, like being trapped in a location or a difficult social situation.
It could be about someone who is 'stuck' during Christmas. Maybe they're stuck in a snowstorm and have an adventure trying to get home for Christmas. Or perhaps they're stuck in a small town and discover the true meaning of Christmas there.