The kiss could be a symbol of two different worlds coming together. Gohan represents the Saiyan - human side, and Android 18 is, well, an android. It could mean a new era of acceptance in their universe.
Perhaps they would start a family. Gohan's Saiyan genes and Android 18's unique android nature could result in some really interesting children. Or maybe they would have to deal with villains who target their relationship as a weakness.
In a fanfiction, the female android might be on a mission to destroy Gohan at first. But as she gets to know him, she realizes that he is not the enemy she thought he was. Gohan, in turn, tries to show her the value of life and friendship. Their relationship then transforms from enmity to a strong alliance.
In a fanfiction, the female android could be malfunctioning and Gohan tries to help her. Along the way, they form an unexpected bond. Gohan uses his Saiyan powers and knowledge to figure out what's wrong with her, and in the process, they become friends and allies against common enemies.
One possibility could be that in the fanfic, Android 18 sees Gohan's kind heart and strength. She might start to develop feelings for him as she watches him protect the Earth. Their relationship could be an interesting mix of her android nature and his Saiyan - human hybrid nature.
There probably is. Fanfiction writers often explore different relationships and scenarios that may not be part of the original canon. So, it's quite possible that someone has written a story where Gohan and Bulma share a kiss. But you have to be prepared for different interpretations of the characters in these fan - made stories.
In a fanfiction, Future Gohan and Android 18 could have a relationship based on redemption. Android 18 has done some not - so - great things in the past. Gohan, being the good - hearted Saiyan he is, could see the potential for good in her. He might try to guide her towards a more positive path. This could involve Gohan protecting 18 from other threats, and in return, 18 could use her android powers to help Gohan in his battles. Their relationship could be a slow - burn type, gradually evolving from distrust to a strong friendship or even more, depending on how the fanfiction unfolds.
The contrast between them makes them an interesting couple. Gohan is a half - Saiyan with a gentle nature most of the time, while Android 18 is a tough and powerful android. This contrast in their personalities can create a lot of interesting dynamics. For example, in a relationship, Gohan might be the more emotional and sensitive one, while Android 18 would be the practical and strong - willed partner.
One interesting story could be about Gohan and Android 18 teaming up to fight a new powerful enemy. They combine their unique skills, Gohan's martial arts and Android 18's android strength, to overcome the foe.
Yes, there might be some out there. You can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Gohan and Lime kiss' in their search bars, and you might find relevant stories.