Maybe in the fanfic, there is a threat to Olympus that only Annabeth can see coming because of her unique perspective. Zeus, despite his pride, has to rely on her. Annabeth comes up with a plan to defend Olympus, but it requires her to have access to Zeus' power. So they form an uneasy alliance. Along the way, Annabeth has to deal with the power struggle within herself as she gets closer to godly power and Zeus has to face his own prejudices about demigods.
One possible plot could be that Annabeth, in her quest for knowledge, accidentally stumbles upon a long - forgotten secret of Zeus. Zeus, initially angry, realizes her pure intentions and decides to guide her on a journey to uncover ancient mysteries that could change the balance of power in the pantheon. This journey would test Annabeth's wits and courage as she has to deal with Zeus' unpredictable nature and the challenges that come with the knowledge they are seeking.
In an 'Annabeth and Zeus' lemon fanfiction, perhaps Zeus, being the king of the gods, takes notice of Annabeth's unique abilities. He might approach her with a task or a test. And as the story unfolds, Annabeth has to use her wits to deal with Zeus. This could involve her trying to outsmart him in a series of challenges, all while the power dynamic between them creates an interesting backdrop for the story. It could also explore how their different natures, Annabeth's mortal - yet very gifted - nature and Zeus' godly, all - powerful nature, interact.
One possible plot could be that Annabeth Chase, known for her intelligence and strategic skills, somehow catches the attention of Zeus. Maybe she stumbles upon a secret of Zeus that he wants to keep hidden. And in the fanfiction, Zeus, in his complex and often unpredictable nature, decides to test Annabeth. He sends various challenges her way, and she uses her wits to overcome them, all while there's an underlying tension between them due to their different natures and the power dynamics at play.
Ares could also be a strong antagonist. He might view the alliance between Annabeth and Zeus as a threat to his own plans for power and chaos. He could try to start wars or create discord to break their alliance and stop whatever they are working towards.
One possible plotline could be that Annabeth discovers some sort of secret that Zeus is hiding, and a lemon (which could be a magical lemon or just a symbol) plays a role in uncovering the truth. For example, the lemon might be a key ingredient in a potion that reveals hidden memories.
You could write about their adventures together in a more family - friendly and respectful way. Maybe they team up to solve a problem in the realm of the gods, with no sexual undertones at all. Focus on their different powers and how they can combine to achieve a goal.
No, it's not appropriate. Writing such fanfics involving sexual content between characters in a disrespectful or inappropriate way goes against moral and ethical standards, especially when it involves deities from mythology in a vulgar context.
One possible plot could be that Zeus is put in a situation where he has wronged Percy in some way, like falsely accusing him of a crime against the gods. Percy then goes on a journey to prove his innocence and in the process, he uncovers a dark secret about Zeus or the gods in general. This secret is so damning that Zeus has no choice but to bow to Percy in apology and recognition of Percy's integrity. Along the way, Percy might face many challenges, both physical and mental, and the story could explore his growth as a character and his evolving view of the gods.
A possible plot could be that Percy discovers a plot against Zeus by some rogue minor gods. Percy decides to warn Zeus. Initially, Zeus is skeptical but Percy's determination convinces him. They then team up to expose the traitors. Along the way, Zeus begins to appreciate Percy's skills and heart, and Percy gains a new respect for Zeus' wisdom and power.
One possibility is that Annabeth has made a mistake that hurt her friends in the demigod world. Maybe she misjudged a situation during a quest and led the team into danger. So, she apologizes for her error in judgment and tries to make it up to them by coming up with a new plan to succeed in the quest.
In such a fanfic, one possible consequence could be a major upheaval in the world of the story. The child would be of divine and demigod lineage, which might attract all kinds of unwanted attention from other gods and mythical beings. It could also lead to a power struggle as different factions might try to use the child for their own purposes.