Misty could be a great choice. They have a long history together, and there have always been hints of a deeper connection between them. Their constant bickering could be seen as a form of flirting in the context of a fanfiction where they finally realize their feelings and start a relationship.
Serena is also a very suitable candidate. In the series, she has a clear crush on Ash. In a fanfiction, this could be developed further. She is kind, elegant, and has her own dreams related to Pokémon. Her relationship with Ash could be a story of mutual growth and support as they pursue their respective Pokémon - related goals.
Maybe it's a new character created specifically for the fanfiction. A girl from a far - off region who Ash meets during one of his journeys. She could be a powerful trainer or have some special abilities that draw Ash to her, and they start a secret relationship.
Perhaps an intelligent and patient psychologist. She could help Sheldon understand his emotions better. Given Sheldon's complex personality, she would need to be very understanding and be able to handle his idiosyncrasies. This type of girlfriend could also introduce Sheldon to the world of human emotions in a more systematic way.
A girl named Ava could be a great girlfriend for Drew. Ava could be a Pokémon coordinator like Drew. They would understand each other's passion for Pokémon contests. They could train their Pokémon together, coming up with new moves and strategies. Their relationship could be based on mutual respect for their skills and love for Pokémon. For example, they could compete against each other in a friendly contest and then celebrate together regardless of who won.
It could be Misty. They have a long - standing relationship in the Pokemon series. They've traveled together and shared many adventures, so in a fanfiction, it's not a stretch to imagine her as a secret girlfriend.
Another possibility is that it's a Pokémon in human form, which is a common trope in some fanfics. This Pokémon - turned - human could have fallen in love with Ash during their adventures together, and now they have to keep their relationship a secret from the world of Pokémon and humans alike.
I think Emilia Clarke could be a great choice. She has that charm and the ability to play a strong - willed character, which would be perfect for the role of the girlfriend. She can bring both the feisty and the loving sides to the character.
Misty is a very common character. She was one of Ash's earliest companions. In fanfiction, she is often portrayed as his girlfriend because of their long - standing friendship and the chemistry they had during their travels. They bickered like an old married couple at times, which could easily be developed into a romantic relationship in fan - created stories.
It could also be a new character created specifically for the fanfic. Fanfic writers often introduce original characters to add new twists to the story. This new character could be someone who meets Ash during his travels and they gradually fall in love without the other main characters knowing.
One possible plot could be that Ash and his girlfriend go on a Pokémon journey together. They encounter rare Pokémon and have to work as a team to catch them. Along the way, they face challenges from rival trainers who are jealous of their relationship and try to break them apart. But through their love and trust in each other, they overcome all difficulties.
It could be a new character, like a foreign exchange student from Beauxbatons. She has a different charm and magic style compared to Hogwarts students, which catches Harry's eye.