Some fanfictions deal with the challenges they face as a couple or as friends. It could be external pressures like family or society not accepting their relationship, or internal struggles within themselves. These types of themes can create a lot of drama and emotional depth in the fanfiction, making it more engaging for the readers.
There are also fanfictions that focus on their backstories. For example, exploring their past experiences and how those have shaped them into the characters we know. This can add more depth to their relationship in the fanfiction. And of course, there are alternate universe fanfictions where they might be in different settings like a modern high - school AU or a fantasy world AU.
Another theme could be the development of their relationship in a more adult - like context, not necessarily in a sexual way, but in terms of more mature emotional exchanges and decision - making. For example, they might have to deal with complex family or social issues together that test their relationship.
In the lemon fanfiction about Natsuki and Shizuru, the focus might be on their interactions. It could be that the writer wants to show their chemistry in a more intense way. Maybe they are given more romantic or tense moments together, which can make the readers see their bond from a different perspective.
I'm not really aware of any popular Shizuru and Natsuki rated M fanfics. It might be a relatively niche area within the fanfic world for this particular pairing at that rating.
I'm not sure specifically about 'Natsuki and Shizuru rated M fanfic' as I haven't surveyed all of them. However, in general, a rated M fanfic might contain more mature themes like violence or strong language. To find popular ones, you could try searching on specialized fanfic platforms and looking at the ratings and reviews.
One challenge could be dealing with different family expectations. Shizuru's family might have certain traditions they expect her to follow in the marriage, while Natsuki's family could have different ideas. For example, Shizuru's family might want a large, elaborate wedding ceremony, while Natsuki's family prefers a more simple and private affair.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, and there's a good chance you'll find Shizuru and Natsuki fanfictions there. Another option could be FanFiction.net, though AO3 is often more inclusive and has better tagging systems for easier searching.
I'm not sure specifically which rated M fanfics about Shizuru and Natsuki are good. You could try searching on some popular fanfic platforms like Archive of Our Own and filter by the characters and the rating. However, make sure to abide by the platform's terms and conditions.
In non - lemon fanfics, Shizuru is often depicted as a strong and composed character. She may show her loyalty towards Natsuki through her actions, like protecting her. Natsuki, on the other hand, can be portrayed as more impulsive but with a kind heart. Their relationship is usually centered around mutual understanding and support, with a deep emotional connection that is developed through shared experiences.
One possible plot twist could be that right before the wedding, a long - lost relative of Shizuru shows up and reveals a family secret that could potentially change their relationship. For example, the relative might disclose that there is a family curse that affects marriages, and Shizuru and Natsuki have to find a way to break it. This would add a layer of mystery and drama to the story.
I'm sorry, but I can't recommend lemon fanfics as they often involve inappropriate or adult - themed content. However, you can try searching for general Natsuki and Shizuru fanfics on fanfic - dedicated websites like Archive of Our Own (AO3) or FanFiction.net.