Yes, there might be. There are many fanfiction platforms where fans create various stories. You could try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net. However, the availability specifically for a 'ririchiyo and soushi pregnant' story depends on the creativity of the fanfiction writers in that fandom.
One possible analysis could be the exploration of their relationship dynamics. Miketsukami is often very loyal and protective towards Ririchiyo. In fanfiction, this might be emphasized through various scenarios like how he defends her from threats in the supernatural world they inhabit. It could also focus on their growing emotional bond, perhaps starting from a master - servant relationship and evolving into something more romantic and deep - seated.
The 'hurt/comfort' trope is quite popular. For instance, Ririchiyo might get injured or be in a difficult emotional state, and Miketsukami would be there to comfort and protect her. This shows his devotion and her vulnerability.
One common theme is loyalty. They are often shown to be extremely loyal to each other in fanfics. For example, in many stories, Miketsukami will go to great lengths to protect Ririchiyo. Another theme is love's growth. Their relationship starts from a certain point and gradually develops into a deeper, more meaningful connection.
The key elements in ririchiyo x miketsukami fanfiction are multiple. Their emotional connection is a fundamental aspect. How they communicate their feelings, whether it's through words or small gestures, can be a great focus. Additionally, the power dynamics between them can be interesting to explore. Since Miketsukami is in a certain position in relation to Ririchiyo, how this affects their relationship, like in decision - making or protecting each other, is a key area that many fanfictions might delve into. And of course, the overall theme of love and loyalty is always present, with different ways of expressing it based on the creativity of the writer.
Self - discovery also features often. As they interact more closely, both Ririchiyo and Miketsukami may learn more about themselves. Ririchiyo might discover new aspects of her personality in relation to Miketsukami's influence, and vice versa. This can add depth to their characters in the fanfiction.
One possible fanfiction could be about Ririchiyo and Soushi going on a secret adventure outside the mansion. They might encounter some new supernatural beings and have to use their combined powers to overcome challenges.
Archive of Our Own (AO3) is a good place to start. It has a large collection of fanfiction from various fandoms. Just use the search function and type in 'ririchiyo and soushi pregnant' and see if any relevant stories pop up.
Well, in the fanfic world, 'A Moment in Time' stands out. It focuses on a specific event that changes their relationship. The author does a wonderful job of describing their interactions. Also, 'The Secret Admirer' is quite interesting. It plays with the idea of unrequited love turning into something more between them.
Some smaller, more niche fanfic communities or forums dedicated to the series might also have ririchiyo and soushi lemon fanfic. For example, some Discord servers related to the fandom could be a source. You might need to ask around or search through their dedicated fanfic channels.