Chi - Chi might be one of the first to support them. Despite her past relationship with Goku, she could see how happy Goku is with Android 18 and decides to be happy for them. Also, Krillin would likely support the marriage. He has a deep friendship with both Goku and Android 18. He knows Android 18 well and trusts Goku, so he would be all for their union.
A possible plot could be that Android 18 gets injured during a fight and Goku takes it upon himself to protect and heal her. This close proximity leads to the development of feelings, which is where the 'lemon' part might come in. Their relationship could be a secret at first as they are from different 'worlds' in a sense, with Goku being a Saiyan hero and Android 18 being an android once created for destruction.
One possible scenario in this fanfiction could be that Android 18 and Goku are forced to time travel due to a new threat that endangers the entire universe. They might travel to a time when the Saiyans first arrived on Earth. Goku, with his knowledge of the future, could try to change some events to prevent future disasters. Android 18, with her strength and unique abilities, would be a great ally in this adventure. They might face challenges like dealing with the primitive technology of that time and also having to hide their true identities to avoid disrupting the timeline too much.
Sure. There could be fanfiction on this. Goku is a well - known character for his strength and determination. Android 21, on the other hand, has her own allure. Writers might find it interesting to pair them up romantically. It could involve Goku helping Android 21 understand more about humanity and love, or perhaps Android 21 being drawn to Goku's unwavering spirit in a way that develops into love.
Well, perhaps in this fanfiction, Goku Black makes a fatal mistake. He could underestimate Goku's ability to adapt during battle. Goku, being the experienced fighter he is, notices this weakness and uses it against Goku Black. He might use a combination of his signature moves like the Kamehameha in a new and unexpected way that catches Goku Black off - guard, leading to his defeat.
The story could start with Goku being pushed to his limits by Goku Black's attacks. But then, he remembers his training with the Kai's and how they taught him to focus his energy in a more efficient way. He then uses this knowledge to create a more powerful Kamehameha that breaks through Goku Black's defenses and kills him.
Sure, there is. Fanfiction often takes characters from different storylines and puts them in unexpected relationships. For Goku and Android 1, in some fanfictions, their relationship could be based on mutual respect for each other's power. Goku, being a Saiyan who loves a good fight, might be attracted to Android 1's strength. And Android 1 could be drawn to Goku's unwavering sense of justice. These elements can be woven into a compelling love story in fanfiction.
Well, I've come across some. Some of them are really interesting as they explore the relationship between Goku and Android 18 in different ways. They might have Goku realizing his feelings for Android 18 during a battle, or in some alternate universe scenarios where they get closer in different situations.
Their interaction could be quite interesting. Goku might be curious about Android 21's abilities, always eager to test his own strength against hers. Android 21 could be initially guarded but gradually open up to Goku's friendly and straightforward nature.