The theme of exploration is often present. Ash is constantly exploring new places in the Pokémon world, and in these fanfictions, the kiss can be part of exploring new relationships. It could also be about acceptance. Ash may have to accept the feelings of the person who kisses him, whether it's someone he expected or not. And sometimes, the theme of destiny plays a role, as if the kiss was meant to happen as part of Ash's journey in some grander scheme.
One popular 'ash gets kissed fanfiction' might be found on platforms like FanFiction.net. You can search there using the keywords 'ash gets kissed' and explore different stories based on the characters and settings you prefer.
Maybe the author wants to build up the tension. In many fanfics, delaying the first kiss can create a sense of anticipation. Ash might be focused on other things like his Pokemon training and adventures, so his romantic relationships take a backseat for now.
It depends on the direction the fanfic writer wants to take. If the fanfic is more about friendship and Pokemon battles, then he might not. But if it has a strong romantic sub - plot, he probably will. For example, if the story is building towards a resolution where Ash realizes his true feelings for Misty, a kiss could be a natural conclusion to that arc.
Well, often in such a 'ash gets betrayed fanfiction', the story might start with a seemingly normal day for Ash. Then, out of the blue, someone he trusts deeply, like Pikachu or one of his human friends, does something that he perceives as a betrayal. This could be something as simple as not believing in him during a crucial battle or siding with an enemy for a reason that's not clear to Ash at first. It can create a lot of emotional turmoil for Ash and make for a very engaging read.
Well, Chopper in a really comical and out - of - the - box fanfic could transform into a human girl (through some wacky magic or something) and give Luffy a kiss just for fun. Usopp's sister (if we assume he has one in the fanfic) who has heard all about Luffy's adventures and is a big admirer could be the one kissing him. And then there's always the chance that it could be a random girl from an island they visit. Maybe she's a baker's daughter and Luffy saved her bakery from being burned down by pirates, so she gives him a kiss as a thank you.
Misty is a very likely candidate. She has been with Ash from the early days of his journey. They have a deep bond and have shared many adventures together. Their relationship has always had a bit of a romantic undertone, so in a fanfiction, it would make perfect sense for them to get married.
One possible reason for Ash getting betrayed in the fanfiction could be misinformation. A villain might spread false rumors about Ash, making his friends believe he has done something wrong. His friends, without verifying the truth, turn against him. It's a sad situation where lack of communication and trust plays a big role.
I'm not sure if there is specifically a 'Ash gets Iris pregnant' fanfiction. There are countless fanfictions out there, but this particular theme might be quite rare or even non - existent depending on the nature of the Pokémon fan community's standards and the general focus of fan - created stories. Fanfictions usually range from adventure - based to friendship - focused within the Pokémon universe.