Well, start with a concept that you're passionate about. If you're interested in exploring their cultural differences, you could start with Caulifla being amazed by Earth's customs. Maybe she tries Earth food for the first time and Goku is there to laugh at her reactions. Then, introduce conflict. Maybe there's a villain who wants to take advantage of Caulifla's presence on Earth. This will keep the story going and engage the readers.
You should also consider their personalities. Caulifla is headstrong and confident. Gohan is more reserved but has great power. Build a plot around how these personalities interact. Maybe Caulifla challenges Gohan to a sparring match right away. And then, as you write, gradually develop their relationship. Let their conversations and shared experiences drive the story forward. Don't be afraid to add some unique elements like new power - ups or mysterious artifacts that they have to deal with together.
Begin by outlining the overall plot. You could start with the concept of your OC. Are they a fighter? A healer? Decide their role in the Dragon Ball universe. After that, plan out how they will interact with Goku. You can take inspiration from the existing storylines in Dragon Ball. For instance, if your OC is a fighter, they could enter a tournament where Goku is also competing. As for the relationship aspect, think about how it will develop gradually. Don't rush into making them a couple right away. Write about their shared adventures, their conversations, and how they come to understand each other better.
First, think about the basic plot. Decide if it's going to be an adventure, a character - study, or something else. For example, if it's an adventure, figure out what kind of adventure they'll go on.
Their powers could combine in a fusion. Just like how Goku has fused with Vegeta in the past, he could potentially fuse with Caulifla. This would create a new and extremely powerful warrior. Their combined Saiyan powers along with their unique fighting styles would make for an unbeatable force.
Well, a Goku x Caulifla x Kale fanfiction could potentially be about their adventures together in a new setting. Maybe it could involve them teaming up against a powerful enemy and during that time, their relationships grow and develop in interesting ways. However, 'lemon' usually implies some inappropriate or adult - themed content, which is not something I would encourage. So if we focus on a non - inappropriate version, it could be a story full of friendship and mutual growth.
First, think about the setting. Decide if it's going to be in the Dragon Ball Z universe, on Earth, or some other planet. Then, create a character for the reader. Consider their personality, their goals, and what makes them unique. Next, plan out how they will meet Goku. It could be a chance encounter, or something more planned like they are both at a martial arts tournament. After that, start writing the introduction, setting the scene and introducing the characters.
Fanfiction.net is also a great place. There are a lot of writers who contribute to the Dragon Ball fanfiction community there. Some of them might have created some really cool Goku x Caulifla stories. However, the quality can vary, so you might need to read a few to find the ones you like.
Perhaps a story where Caulifla and Goku are on a mission together in an unknown planet. They face various challenges and have to rely on each other's strengths. Caulifla might initially be overconfident, but Goku's experience helps her to understand the importance of strategy and teamwork. Along the way, they start to respect each other more deeply.
Romance is also a big theme. Writers like to explore the relationship between the two characters, from the initial attraction to the development of deeper feelings. It might include cute moments like Goku being a bit clueless about his feelings and Caulifla being more forward.
First, you should research about Goku's character and his existing powers and personality traits. Then, think about what the Dark Instincts would add or change. You could start with a simple scenario like Goku feeling a strange new power within him during a training session. Another way is to begin with a dream sequence where Goku is consumed by his Dark Instincts.