Another way is to show their relationship as a power struggle. In the dark fanfiction, Sasuke could have new powers that make him a threat, and Sakura, not willing to be overshadowed, tries to gain equal or greater power. Their relationship then becomes about who is stronger and who will ultimately control the situation, all while their underlying feelings for each other still exist in a distorted way.
In such fanfiction, their relationship could be shown as a complex web of emotions. They might have a lot of unspoken feelings that surface in the 'dark' situations they face. For example, when they are in a dangerous battle, Sasuke might show his protective side towards Sakura in a more aggressive way than usual, which could lead to some intense moments between them. The 'lemon' aspect could add a layer of physical passion to their relationship, but it should be done in a way that still respects the characters' core personalities.
The relationship could be shown as a mentor - mentee type in some fanfictions. Maybe the Dark Lord, in an alternate reality, decides to teach Harry some of his dark magic knowledge not to corrupt him, but to make him stronger to face other threats in the wizarding world. This would completely change the dynamic between them. They could also be shown as reluctant allies, forced to work together to stop a greater evil that is emerging in the wizarding world. This would involve a lot of tension and distrust between them at first, but gradually they could start to understand each other more.
Another way is to show a relationship full of regret. Anakin could be filled with remorse for how he treated Ahsoka in the past, but his dark side self still has the urge to do harm. Ahsoka, on the other hand, is conflicted between her love for the old Anakin and her need to oppose the current, dark Anakin.
In a Sasuke and Sakura jealous lemon fanfiction, their relationship can be a rollercoaster. Jealousy can be used to explore their insecurities. Sasuke, who has always been a bit of a lone wolf, might be jealous because he's not used to sharing Sakura's attention. Sakura, who has loved Sasuke for a long time, could be jealous when she feels she's not the most important person to him. As they deal with these jealous feelings, they learn more about each other and their relationship deepens. For instance, they might start to communicate more openly about their feelings, which was something they struggled with before. This new - found communication can lead to more romantic and intimate moments in the fanfiction.
Their relationship could be portrayed as more of a friendship. Instead of the typical toxic relationship, they could be shown as two outcasts who support each other in their own strange ways. For example, Harley helps the Joker with his plans not out of love in a romantic sense, but because she values their friendship.
Their relationship could be portrayed as a mentor - student kind of thing. Amy could be learning from Dark Super Sonic about the darker aspects of power and how to control it within herself. This would be a very different take from the usual romantic or friendly relationship.
In a sleeping fanfiction, their relationship can be shown through small gestures. For example, Sasuke might unconsciously reach out for Sakura in his sleep, indicating a subconscious need for her presence. It could also be that Sakura curls up closer to Sasuke while sleeping, showing her trust and love for him.
In some fanfictions, the Naruto - Sakura relationship is portrayed as a slow - burn romance. Naruto's continuous efforts to protect Sakura gradually make her fall for him. In contrast, in the original series, Sakura was mainly focused on Sasuke. Fanfiction gives an opportunity to change that narrative.
Sound in fanfiction about Sasuke and Sakura's relationship can be very symbolic. The howling of the wind during a stormy encounter between them might represent the chaos in their relationship at that time. But then, the sound of a bird singing after they resolve an issue could symbolize new hope. The whispering between them in a quiet moment can be full of unspoken feelings, which is a crucial aspect of their relationship as it unfolds in fanfiction.
The relationship could be shown as a mentorship of sorts in fanfiction. The Dark Avatar, having a different perspective on power and the spirit world, could teach Korra things she never knew. At the same time, Korra could try to reform the Dark Avatar. It would be a complex relationship full of give - and - take, with both characters growing in different ways. For example, the Dark Avatar might learn about compassion from Korra, while Korra could learn about the hidden aspects of the spirit world from the Dark Avatar.