The theme of forbidden love can also be present. Since they are both members of a somewhat sinister organization like the Akatsuki, their relationship might be seen as something that goes against the norms or rules of the group. This can add an element of drama and tension to the fanfictions, making them more engaging for the readers.
One common theme could be redemption. When they are hurt, it might be a chance for them to re - evaluate their actions and seek redemption. Another theme could be the fragility of their existence despite their seemingly powerful abilities. Even with Hidan's immortality and Kakuzu's multiple hearts, they are still vulnerable in certain ways when hurt.
If Hidan were to be captured and tortured, Kakuzu would be enraged. After rescuing Hidan, Kakuzu would stay by his side during his recovery. He'd be uncharacteristically gentle, making sure Hidan had food and water. Hidan would be touched by this side of Kakuzu that he rarely sees, and it would strengthen their relationship.
A good Kakuzu x Hidan fanfic has to capture their unique personalities. Kakuzu's greed for money and his calm, calculating nature, and Hidan's fanaticism and wild behavior. It should also have an engaging plot. Maybe a plot where they are forced to work together against a common enemy stronger than them. This would make them put aside their differences and show their loyalty to the Akatsuki.
Well, you can try looking on fanfiction.net. There are often a variety of stories in different genres related to this pairing. Some might be action - oriented, where they go on missions together. Another option could be Archive of Our Own (AO3), which has a large collection of fanfictions and you might find some unique takes on the Kakuzu x female Hidan relationship there.
One possible angle in the 'Hidan and Kakuzu Hurt' fanfiction could be the consequences of their actions on themselves when they are in a vulnerable state. Hidan's immortality and Kakuzu's unique body structure could be explored in relation to how they experience and recover from harm. The fanfiction could also explore the reactions of other characters in the Naruto world to seeing these two usually tough characters in a hurt state, which could lead to some interesting character development for all involved.
Another comedic element is how they interact with other characters. They are often out of place in normal village settings. So when they have to deal with regular villagers or other ninja who have more normal values, it leads to funny situations. For example, if they try to order food at a restaurant but they don't understand the concept of paying a fair price or being polite to the waitstaff.
In a hurt/comfort fanfic, perhaps Kakuzu has some emotional turmoil. Hidan, despite his crazy nature, tries to comfort him. Hidan might sit down with Kakuzu and just listen to him talk about his past traumas. Hidan's presence, even without saying much of the 'right' things, could be a source of comfort for Kakuzu as he realizes he's not alone.
Well, in fanfiction, one interesting aspect could be their unique relationship dynamic. Hidan's wild and impulsive nature contrasts with Kakuzu's more calculating and money - hungry side. This can lead to some really engaging character interactions, like when they are on missions together and have to deal with different situations based on their personalities.
One common theme is the clash of their personalities. Itachi is calm and calculating, while Hidan is wild and impulsive. Fanfictions often explore how these two contrasting personalities interact. Another theme could be the exploration of their different beliefs. Itachi has his own complex moral code, and Hidan has his extreme religious views regarding Jashin.
One common theme is the clash of personalities. Hidan is wild and reckless while Shikamaru is laid - back and intelligent. Another is the idea of enemies - to - lovers. Since they are on opposite sides in the original story, many fanfictions explore how they could overcome that.