One common theme is the exploration of their complex relationship. Given their different natures, fanfictions often focus on how they come to understand and accept each other. For example, Tsukiyama's initial predatory nature towards Kaneki and how that changes over time.
One great fanfiction is 'The Unlikely Bond'. It really delves into the deep connection between Kaneki and Tsukiyama in a unique way. Another is 'A Shift in Dynamics' which shows an interesting change in their relationship over time.
Another theme is the power dynamic. Kaneki gains power throughout the series, and Tsukiyama is also a powerful ghoul. Fanfics often play with how this power dynamic affects their relationship, whether it's a source of conflict or a way for them to bond and support each other.
One great piece of tsukiyama x kaneki fanfiction is 'The Unlikely Bond'. It delves into how their relationship could develop in an alternate universe where they have to team up against a common enemy. It beautifully portrays the complex emotions between them.
In a kaneki x tsukiyama lemon fanfiction, the story could be set in the dark and mysterious world they inhabit. Their relationship might be a bit of a forbidden love, given their different natures. The 'lemon' aspect would probably involve some intense emotional and physical interactions. It could show how they support each other through difficult times and how their love, with all its passion, evolves over the course of the story.
A good Tsukiyama x Kaneki lemon fanfic is one that combines several elements. Firstly, it should have a strong understanding of the source material. The author needs to know the backstories, the character traits, and the overall theme of Tokyo Ghoul. Secondly, the relationship between Tsukiyama and Kaneki should be built gradually. It can't be an abrupt jump into the sexual content. The 'lemon' parts should be an organic part of their relationship development. Thirdly, the writing style matters. Vivid descriptions, not just of the physical aspects but also of their emotions, can make the fanfic stand out. Additionally, a unique take on their relationship, perhaps exploring a different side of their personalities in the context of the relationship, can make it a great read.
Many Kaneki x Tsukiyama fanfics also tend to be set in the dark and gritty world of Tokyo Ghoul. The setting adds to the overall atmosphere of the relationship. The fanfics might include elements like their interactions within the ghoul society, their battles together or against each other, and how these experiences shape their relationship. For example, a fanfic could show how they bond over a shared enemy or a difficult situation in the ghoul underworld.
One can expect a lot of emotional turmoil. Kaneki is often conflicted, and Tsukiyama has his own quirks. The 'lemon' part might bring out their more vulnerable sides in a relationship. It could be a story of two souls finding solace in each other.
Another plot could revolve around how they deal with the reactions of the other characters. Some might be accepting, while others could be horrified or even try to harm Kaneki. Tsukiyama would have to use his influence and power to protect Kaneki and their unborn child. The pregnancy could also be a symbol of a new beginning for the relationship between ghouls and humans, if they can prove that such a thing can happen and be managed.
You can try looking on some fanfic websites like Archive of Our Own (AO3). There's a large collection of Tokyo Ghoul fanfics there, and you might be able to find ones related to Tsukiyama and Kaneki with the 'lemon' genre tag. Another option could be Fanfiction.net, although AO3 generally has a more diverse range of content and better tagging system for specific themes.