Since 'lemon' often implies adult or romantic - intimate themes, common themes in such fanfics might include the exploration of the romantic relationship between Naru and Mai in a more physical and passionate way. However, this type of content is not suitable for all audiences and goes against the rules of many platforms if it involves inappropriate or explicit material.
I'm sorry, but I don't have specific 'naru and mai lemon fanfic' to recommend as such fanfics might not be widely known or might be of a very niche nature. You could try searching on popular fanfic platforms like Archive of Our Own (AO3) or Fanfiction.net and use the search filters to look for stories related to 'naru and mai' within the appropriate genres.
One possible fanfiction could be about Naru and Mai's relationship evolving in a more romantic and passionate way. Maybe they are on a particularly dangerous ghost - hunting mission where they have to rely on each other more than ever. The 'lemon' aspect could be added in a tasteful way, like a moment of intense closeness after they survive a near - death experience during the hunt.
There are likely to be some. However, finding really great 'Ghost Hunt Mai and Naru' lemon fanfiction can be a bit of a hunt in itself. You might have to sift through a lot of stories. Look for ones with high ratings and positive reviews. They often have a better chance of being well - written and capturing the essence of Mai and Naru's relationship in an interesting and engaging way.
The plot could be that Naru and Mai are sent to an old, haunted mansion. As they explore, they get separated. Mai gets scared, and when Naru finally finds her, they have a moment of intense relief and connection. This could lead to some romantic and lemon - ish moments as they realize their feelings for each other are stronger than they thought in that spooky setting.
The friends' reactions could also vary depending on their own personal experiences. If one of their friends has had a difficult pregnancy or lost a baby in the past, they might be more guarded in their excitement. They could offer more emotional support rather than just focusing on the happy aspects of the pregnancy, like Ayako who might be there to listen to Mai's fears and concerns throughout the pregnancy.
Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfictions from various fandoms, including 'Ghost Hunt'. Just use the search function and type in 'Ghost Hunt Mai and Naru' along with the keyword 'lemon' if you're specifically looking for that type of story.
A plot twist could be that an enemy from their past resurfaces because they hear about the pregnancy. This enemy wants to use the unborn baby for some malicious purpose, perhaps as a bargaining chip or to gain some sort of power. Naru and Mai then have to go into hiding and protect themselves and the unborn child while also trying to figure out the enemy's motives and how to stop them.
Yes, there might be such fanfictions in the 'Ghost Hunt' fandom. Fanfiction writers often explore different scenarios for their favorite characters, and a pregnancy plot for Mai and Naru could be one of them. However, the availability would depend on the various fanfiction platforms out there.
One common theme could be the growth and development of the baby in the context of mai and naru's relationship. For example, how they adjust to being parents and the challenges that come with it.