Gon in fanfiction can be very single - minded in his pursuit of goals, just like in the original. He might be a bit more naive at times, which can lead to interesting plot twists. Killua is often portrayed as having a complex emotional side. He struggles with his past as an assassin and his loyalty to Gon. His cool exterior may crack in some fanfictions, showing his true feelings.
Often, they show a deeper level of commitment. The mpreg forces them to rely on each other more. For example, Gon might become more protective of Killua during the pregnancy.
Some Tumblr blogs also post and recommend 'killua x gon love fanfic'. You can search for relevant tags or follow blogs that are dedicated to the 'Hunter x Hunter' fandom. They often share links to interesting fanfics.
In 'killua x gon fanfiction', one characteristic is the exploration of their relationship in different scenarios. It could be in alternate universes where they face new challenges. Also, their friendship is often romanticized to some extent, with the authors delving into the unspoken feelings they might have for each other. Moreover, the fictions usually stay true to their personalities as shown in the original anime, while adding new layers to them.
Sure, there are many fanfictions about Gon and Killua that might include a kiss. It depends on what kind of story you're looking for. If you like angsty stories, there could be ones where the kiss is a result of some big conflict or misunderstanding between them. Or if you prefer fluff, there will be those where the kiss is just a sweet moment in their innocent relationship. You can try searching on popular fanfic platforms and see what you come up with.
One popular theme is their friendship. Their bond is very strong in the original work, and fanfics often expand on it, like how they rely on each other in dangerous situations. Another theme is adventure. Since they are both on a journey in the original story, fanfics may create new adventures for them, such as exploring uncharted lands.
There's also 'Love in the World of Hunters'. This fanfic explores the idea of Killua and Gon realizing their feelings for each other in the middle of their adventures. It has some exciting plot twists and the way it describes their love is very engaging.
I'm not sure specifically about a fanfic with that exact title. There are a lot of 'Killua x Gon' fanfics out there in the Hunter x Hunter fandom, but to find one with such a strange title would require some in - depth searching through fanfic platforms.