One common theme is the power of friendship evolving into love. They start as friends or acquaintances in the Pokemon world and as they interact more, feelings of love develop. Another theme could be overcoming differences. Ash is more of an energetic and sometimes reckless trainer while Sabrina is calm and powerful. They have to overcome these differences to be together.
Yes, there are. For example, some fanfictions might depict their adventures together where their relationship gradually develops. They could be on a journey to discover new Pokemon and during that time, Ash starts to see Sabrina in a different light, and Sabrina also becomes more open to Ash.
Ash's Pokemon would likely have mixed reactions. Some like Bulbasaur, being the gentle and observant one, would be quick to accept Sabrina. It might even enjoy the new psychic powers that Sabrina could bring into their group. However, Squirtle might be a bit mischievous at first, trying to test Sabrina's patience. For Sabrina's Pokemon, Alakazam, being highly intelligent, would sense Ash's good intentions towards Sabrina and would support the relationship. Her other Pokemon would follow Alakazam's lead.
One possible storyline could be that Ash, after many adventures, returns to Saffron City where Sabrina is. Their relationship could start from Ash challenging her gym again but this time they see each other in a different light. Maybe Pikachu plays a role in bringing them closer, like it gets lost in Sabrina's psychic maze and Ash has to work with Sabrina to find it. This shared experience could be the start of their romantic journey.
It really depends on the story. In some fanfictions, Sabrina might be more dominant. Given her psychic powers, she can control situations easily. For example, she could use her powers to influence the outcome of battles or make quick decisions in dangerous situations.
One interesting story could be about Ash and Sabrina teaming up to face a powerful, new, and mysterious Pokemon. They might use their unique skills and bond to overcome the challenges.
Some fanfictions focus on Sabrina helping Ash to train his Pokemon in unique ways using her psychic abilities. Ash, in turn, shows Sabrina the value of perseverance and believing in one's Pokemon. This kind of story can explore how their different approaches to Pokemon training can complement each other and lead to growth for both of them.
A good one often has well - developed characters. For example, Sabrina's protective nature should be shown in a believable way, like how she defends Ash from other powerful Pokemon trainers or dangerous situations. Also, the relationship between Ash and Sabrina should grow organically. It shouldn't feel forced.
Ash might be initially shocked. He has always seen Sabrina as an acquaintance or even a friend in some cases. So when she betrays him, he'd be taken aback. For instance, he could freeze for a moment, unable to believe what has just happened.
Ash and Sabrina are the main characters. Ash, known for his journey to become a Pokemon master, is now in a position where Sabrina is under his control in this fan - made story. Sabrina, with her strong psychic abilities, is in a very different role than what we usually see in the regular Pokemon storyline. Their interactions and how they adapt to this new relationship would be the focus of the story.