One possibility could be that Percy ties up Annabeth as part of a prank gone wrong. Maybe he was trying to play a joke on her for some past mischief she caused him, but then things spiral out of control and he has to figure out how to untie her before they get into real trouble.
It's hard to say for sure if it's extremely popular. It might be a niche concept within the Percy Jackson fandom. Some fans might be interested in exploring such unique and somewhat edgy scenarios between the two characters, while others might find it a bit too out - of - the - ordinary and not as appealing.
One possible fanfic could be about Percy and Annabeth going on a quest together, not as family but as partners in a more romantic or friendship - based adventure. They could face challenges that test their relationship outside of the family - like bond they usually have in the original stories.
It could be a beach day scenario. Maybe they are having a day off from their adventures and just relaxing on the beach in their bikinis and swim trunks, enjoying the sun and having some light - hearted conversations.
One possibility could be that they are in a school setting where they have to wear uniforms. Percy might constantly be getting in trouble for not following the uniform code properly, like having his tie askew or his shirt untucked. Annabeth, being more organized, tries to help him out. This could lead to some comical moments as well as deeper conversations about fitting in and following rules.
One possible plot could be their daily adventures in a new city. They might face challenges like dealing with strange neighbors or finding new jobs. Maybe they also have to hide their demigod powers from the normal humans around them.
One possibility could be that they are banished due to a false accusation. Maybe someone in the camp frames them for a serious crime they didn't commit, like stealing a powerful magical artifact. So, they are forced to leave and then have to prove their innocence while on the run from those who banished them.
Well, perhaps Percy takes Annabeth on a quest to a special location, like an ancient Greek ruin they've always wanted to explore. During this adventure, he finds the perfect moment when they're alone and surrounded by the beauty of the place to pop the question.
One possible plot could be that Percy and Annabeth are on a quest in Paris. They might be searching for a lost Greek artifact that has somehow ended up in the city. Along the way, they explore the famous landmarks like the Eiffel Tower and Louvre Museum, all while facing various monsters in disguise among the tourists.
I'm not sure specifically as there could be many different interpretations in a fanfiction with that title. It might involve some sort of conflict or situation where Percy has the upper hand and Annabeth is in a position where she has to plead with him. Maybe it's related to a quest where Percy has a key decision to make and Annabeth needs to convince him in a rather desperate way.
The fanfiction could also focus on the relationship between Annabeth and Percy during this time. They might have disagreements on how to handle the situation. For instance, Percy might want to keep Annabeth safe at all costs and not let her go on any dangerous missions, while Annabeth feels that she needs to be involved to protect their child. This could lead to some tension between them, but in the end, they would work through it and become even closer as they anticipate the birth of their baby.