A plot idea might involve a situation where the kiss is witnessed by one of the other brothers. This could lead to jealousy and conflict among them. For example, if Laito sees the kiss, he might try to drive a wedge between Ayato and Yui out of his own twisted sense of fun and envy. Or perhaps the kiss unlocks some hidden memories for Yui that are related to her past and her connection to the Sakamaki family.
In a fanfiction, Yui and Ayato could go on an adventure together. They might find themselves in a mysterious part of the mansion that no one has explored before. As they face various challenges there, they have to rely on each other. Ayato, who is usually so self - assured, might start to see Yui in a new light as her bravery and determination shine through.
Well, perhaps in the fanfiction, Yui discovers she's pregnant and is filled with a range of emotions from joy to fear. Ayato, on the other hand, is excited in his own way as it's a sign of his dominance over Yui. The story could then focus on how they navigate the changes in their relationship, like Ayato having to be more responsible and Yui having to deal with the physical and emotional changes of pregnancy while living among vampires.
Another way their interactions could be portrayed is through a series of misunderstandings. For instance, Ayato might misinterpret Yui's kindness towards another character as romantic interest. This would lead to some tension between them, but eventually, through communication, they would clear up the misunderstandings and their relationship would reach a new level.
One possible aspect of a Yui x Ayato lemon fanfiction could be the exploration of their complex relationship. In the Diabolik Lovers universe, Yui is often in a vulnerable position while Ayato has his own domineering nature. A fanfiction might delve into how their relationship evolves in a more romantic and steamy way, with the 'lemon' aspect adding an element of passion. It could show Yui gradually coming to terms with her feelings for Ayato despite the difficult circumstances they are in.
One possible aspect of this fanfiction could be the exploration of the complex relationship between Ayato and Yui. In many Diabolik Lovers stories, Ayato is often possessive and Yui is the more submissive figure. In a lemon fanfiction, this dynamic could be intensified in an intimate way. Maybe it shows how Ayato's vampiric nature affects their relationship during these more passionate moments. However, it's important to note that such fanfictions should still adhere to the general themes and boundaries set by the original Diabolik Lovers universe.
Perhaps Yui discovers a power within herself that is connected to Ayato's past. As she tries to understand this power and its implications, she and Ayato are drawn closer together. They might have to search for answers in old vampire lore, and during this journey, their feelings for each other grow stronger. For example, they could find that Yui's power was once a key part of Ayato's family's history, and this revelation brings them closer on an emotional and spiritual level.
After the kiss, their relationship could become more intense. Ayato might become more protective of Yui, not wanting any of the other vampires to come near her. Yui could start to feel a deeper connection to Ayato and be more willing to open up to him about her feelings.
In Diabolik Lovers, Yui and Ayato have a complex relationship. Ayato is often possessive towards Yui. Their relationship could develop in many ways in fanfiction. For example, they might start to understand each other's past traumas and grow closer through shared experiences. Maybe Ayato realizes the importance of respecting Yui's feelings rather than just being domineering.
In Diabolik Lovers fanfiction, Ayato and Yui's relationship is often complex. Ayato is typically possessive. He sees Yui as his own, which can create a lot of tense and interesting situations. Their relationship is filled with his dominance and her attempts to navigate his overbearing nature.
One possible scenario in a fanfiction could be that Ayato finally overcomes his more possessive and aggressive tendencies towards Yui. After a series of adventures and challenges within the Diabolik Lovers' world, they realize their deep love for each other. Ayato might propose to Yui in a very romantic way, perhaps in the garden where they often have their more tender moments. Their wedding could be a small, private affair with only the closest of friends and family (from what they consider family in that world). Yui would look stunning in a simple white dress, and Ayato would be in his finest attire. It would be a celebration of their love that has managed to bloom despite all the darkness around them.