You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own. These platforms usually have a large collection of fanfictions for various anime and manga series, including 'My Little Monster'. Just use the search function and type in 'Sasayan x Natsume' to see if there are any relevant fanfictions.
Another place could be Tumblr. There are often fans who share their fanfiction works or links to their works on Tumblr. You can search for the relevant tags such as '#My Little Monster', '#Sasayan x Natsume' and '#fanfiction'. However, the content on Tumblr might be a bit more scattered compared to dedicated fanfiction sites.
The plot could also involve some sort of misunderstanding. For example, Sasayan is seen with another girl by Natsume, and she gets jealous and starts to avoid him. Sasayan, on the other hand, has no idea what's going on. It could lead to a lot of angst and drama as Sasayan tries to figure out why Natsume is acting so strangely. Eventually, after some miscommunications and heartache, they clear up the misunderstanding and their relationship becomes even stronger.
One common theme could be their relationship development. It might explore how their feelings for each other grow and change over time. Another theme could be their shared experiences and how those experiences bring them closer together in the fanfiction world.
I'm sorry, but I don't have specific sasayan and natsume lemon fanfiction to recommend directly. You can try searching on fanfiction platforms like Archive of Our Own. There might be a variety of works related to them.
Their relationship could develop through shared hobbies. For example, if they both like painting, they could start painting together more often, and this would strengthen their bond. They might also develop their relationship through helping each other out in school. If one is having trouble with a subject, the other could tutor them.
A really interesting plot could be that Natsume and Mi accidentally swap bodies. This would create a lot of comical situations as they try to adjust to living in each other's shoes. They would have to deal with each other's friends and family while also trying to figure out how to swap back. In the process, they might gain a new perspective on each other's lives and become even closer friends.
Fanfiction about Matoba and Natsume in Natsume Yuujinchou often explores their complex relationship. It might show how Matoba, with his rather mysterious and sometimes morally ambiguous nature, interacts with Natsume, who is kind - hearted and has the ability to see spirits. Some fanfictions could focus on their potential friendship development, despite their initial differences and the wariness Natsume has towards Matoba due to his methods of dealing with spirits.
You can try FanFiction.net. It has a large collection of fan - created stories, including Sonic X My Little Pony crossovers. Just use the search function and type in the relevant keywords.
A frequent theme is the clash of ideologies. Matoba's more traditional exorcist ideology of subduing spirits may conflict with Natsume's ideology of co - existing with them. Fanfictions might show how they try to reconcile these differences or how the conflict affects their relationship. Also, the theme of trust can be prominent. Given Matoba's actions in the original series, Natsume is initially distrustful, so stories may focus on how trust is either gained or lost between them.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of Natsume Yuujinchou fanfictions with various themes and writing styles. Another option is FanFiction.net, which also has a decent number of stories related to this anime. Just use the search function on these sites and type in 'Natsume Yuujinchou' to find relevant fanfictions.
Fanfiction.net is a great place to start. You can simply type in 'Naruto x Natsume' in the search bar and then filter through the results to find ones that are not of a mature nature. There are usually tags or summaries that can give you an idea of the content before you start reading.