One popular trope is the 'Training Bond' trope. Since they often train together in the original series, in yuri fanfics, this can be a starting point for deeper emotional connections. Another is the 'Protect Each Other' trope. For example, Kale might be in a dangerous situation and Caulifla would go to extreme lengths to save her, which then leads to a realization of deeper feelings. And the 'Shared Power' trope can also be common. When they combine their powers, it can be a moment of intense closeness and a catalyst for romantic feelings in fanfics.
First, study their characters. Know their personalities, their goals, and how they interact in the original work. For example, Caulifla is bold and confident while Kale is more shy and reserved. You can use these traits to build their relationship in the fanfic. Then, come up with a basic plot idea like a new adventure they go on together that brings them closer. Start with a strong opening, like a moment of conflict or a sudden realization between them.
Finding a 'cabba caulifla kale threesome fanfic' might be a bit of a challenge. Fanfics often require some searching through different fan - created platforms. You could start by looking at popular fanfic websites related to the series these characters are from. But keep in mind that not all fanfics are well - organized or easy to find. Also, the nature of such a threesome concept might not be as common as other types of fanfics, so it might take some time and effort to come across one, if it exists at all.
One possible theme could be friendship and camaraderie evolving into a deeper bond. Since they are all characters from the same universe, they might have shared adventures that bring them closer in the fanfic.
One common theme is friendship. They are all Saiyans (or part - Saiyan in Gohan's case), and the fics often explore how they bond over their shared heritage. Another theme is growth. Gohan can help Kale and Caulifla grow as fighters, and they can also help him in different ways, like making him more confident in his Saiyan side.
Well, one possible plot could be a training arc where Goku helps Caulifla and Kale to master new forms. They could travel to different planets for special training. Goku could share his Saiyan knowledge with them, and together they face off against new powerful enemies.
One idea could be a story where Cabba helps Caulifla and Kale train for a big tournament. They face various challenges together and Cabba's unique fighting style influences the sisters to develop new techniques. In the end, they all become stronger and their friendship deepens.
A powerful demon from another dimension could be the main villain. This demon could be seeking to destroy all Saiyans and starts targeting Goku, Caulifla, and Kale. He has unique powers that they have never faced before, like the ability to nullify their energy attacks.
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.
The plot could involve Cabba inviting Caulifla and Kale to his planet for a special training session. There, they encounter a strange phenomenon that affects their ki. They have to work together to figure out how to overcome it. As they do so, Cabba and Caulifla start to develop feelings for each other while Kale looks on and learns about relationships.