One possibility is that the baby could inherit unique powers. Since Percy has his water - related abilities and Athena is the goddess of wisdom, the baby might have the power to control water in a very intelligent way, like using it to solve complex puzzles or defend in a strategic manner.
The baby might be very inquisitive. With Athena as its mother, it would inherit a thirst for knowledge. It could constantly be asking questions, eager to learn about the world around it, whether it's the secrets of the ocean (from Percy's side) or the wisdom of the heavens.
One possible plot could be that Bobby and Athena face challenges in adjusting to life with a new baby. Maybe they struggle with sleepless nights and trying to balance their work with taking care of the baby. They could also have cute family moments like Bobby singing lullabies to the baby while Athena watches lovingly.
In these fanfictions, Percy often retains his bravery and loyalty. His more impulsive nature can create interesting dynamics with Athena's calculated wisdom. For example, he might rush into a situation while Athena is thinking of a strategic plan.
Well, they could go on an adventure to a mysterious place. For example, a long - forgotten island that was once a stronghold of Athena. There, they might find clues about a prophecy that involves both Percy and the Athena Hunters.
The plot could start with Athena seeing something special in Percy that she hasn't noticed before. Maybe he does something heroic that makes her look at him in a different light. As she starts to interact with him more, feelings develop, and they end up kissing. But then, they have to face the consequences. The other gods might be outraged or confused, and Percy's friends might not understand. It could lead to a journey of self - discovery for both of them as they try to navigate this new relationship in a world full of rules and expectations.
Well, it could start with Athena making a decision that Percy believes will lead to the destruction of Camp Half - Blood and all the demigods. Maybe she's under the influence of an ancient evil. Percy tries to reason with her, but she won't listen. So, he has to consider killing her to protect his friends and home. Along the way, he faces opposition from other demigods who still believe in Athena's goodness. Percy then has to find a way to prove that Athena is a threat, all while dealing with his own feelings of guilt and betrayal for even thinking about killing a goddess he once respected. It would be a story filled with drama, action, and moral quandaries.
One possible plot could be that Athena is giving Percy some strategic advice for an upcoming battle. Maybe she's warning him about a new type of monster he'll face and how to defeat it using his wits.
In this kind of fanfiction, perhaps it's set in a situation where Athena has a task for Percy and Annabeth. The 'lemon' could be a metaphor for a sour situation that they initially face. They might be in a place where they are at odds with the local deities or creatures, and they have to use their combined skills, Percy's strength and water - related powers, Annabeth's strategic mind from Athena, to get out of it. As they progress, they might have some internal struggles within their relationships too.
One possible story could be that their baby inherits Percy's water - controlling abilities and Piper's charm - speaking skills. The baby might grow up in a world where demigods are still facing threats, and they have to protect their child from various monsters. It could also show how Percy and Piper adjust to parenthood, like dealing with sleepless nights and the baby's first steps.
One possible plot twist could be that the gods oppose the marriage. Since Athena is a virgin goddess in Greek mythology, her getting married would go against the traditional view of the gods. This could lead to a conflict where Percy has to prove himself worthy not only to Athena but also to the other deities.