The interaction might start with suspicion. Goku, always on guard for threats to the Earth, would be cautious around Android 21 at first. But Android 21 could be intrigued by Goku's power and simplicity. As time goes on, they could start training together, which would be an interesting interaction as Goku's training methods are very different from what Android 21 is used to.
In the lemon fanfiction, their interaction could be filled with emotional turmoil. Android 21 may have feelings of envy towards Goku's freedom and strength, while Goku may be curious about Android 21's intelligence and abilities. This could lead to some heated exchanges, both verbally and in combat, which gradually build up a strange sort of bond between them.
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.
They might start with some hesitant glances and then progress to small touches during their training sessions together. Eventually, they could share some passionate embraces.
Their interaction might become more intense. Goku, being the experienced fighter, could start to teach Caulifla some really advanced techniques, and Caulifla would be eager to learn. This could lead to some really exciting training scenes between them.
Through shared battles. When they fight side by side against common enemies, they start to trust each other more. For example, in a fight against a group of powerful androids created by a mad scientist, they rely on each other's strengths. Goku uses his martial arts skills and Android 21 uses her technical abilities to analyze the opponents' weaknesses.
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.
Well, it could be a relationship based on power dynamics. Goku is extremely powerful, and Android 21 is no slouch either. They might engage in battles that gradually turn into a form of respect for each other's abilities. And then, this respect could evolve into a deeper connection. For example, Goku could teach Android 21 about the joys of a fair fight, and she could in turn show Goku some of her unique Android - related skills or knowledge.
Maybe in the fanfiction, Goku accidentally uses a new technique that causes him and Android 18 to be mentally linked. Through this link, they start to understand each other on a deeper level. They then find themselves drawn to each other's strength and determination. But they have to hide their growing relationship from their friends and family who might not understand.
Common themes often involve the unexpectedness of their relationship. Since Goku is a pure - hearted warrior and Android 18 was initially an enemy. In lemon fanfictions, there might be a focus on the passion that arises from this unusual pairing. Also, themes related to redemption and acceptance can be found, as Android 18 might find acceptance in Goku's world, and Goku might see her in a new light. This all gets intertwined with the more 'lemon' aspects which are often used to heighten the intensity of their relationship.
Well, at first they might be a bit wary of each other. But as time passed, they'd discover their common interests like the pursuit of strength. Goku's positive attitude would influence Android 18, and she would in turn help Goku with things like problem - solving from her android - smart perspective. As they grew older in the fanfiction, this relationship could become a very deep and important one, with them having each other's backs no matter what.
Well, in a fanfic, Kid Goku and Android 18 could have an interesting dynamic. Kid Goku is pure - hearted and always eager for a good fight. Android 18, on the other hand, is tough and has her own sense of justice. Their interaction might start with a misunderstanding. Maybe Goku mistakes 18 for a bad guy at first because she's an android. But then, as they get to know each other, they could end up teaming up against a common enemy. Goku would be impressed by 18's strength, and 18 might be a bit amused by Goku's naivete.