Percy is a must - have main character. As for Aphrodite, she's central to the concept of the trap. Another character that could play an important role is Grover. Grover could sense that Percy is in danger and try to find a way to rescue him. His satyr abilities might come in handy in detecting the magical aspects of Aphrodite's trap. And of course, we can't forget about the minor gods or goddesses that Aphrodite might enlist to help with her trap, which could add more complexity to the story.
Well, it could be about Percy getting caught in a trap set by Aphrodite. Maybe she wants to test his loyalty or something. For example, she could use her powers of love and beauty to create an alluring situation that seems like a great opportunity to Percy, but is actually a trap to see if he'll fall for something that goes against his principles.
Percy is the central figure, of course. But in many fanfictions, Aphrodite herself plays an important role. She could be the one setting the trap, or she might have a more complex relationship with Percy where she's both the antagonist and a potential ally in breaking the trap. Grover could also be involved, using his nature - related powers to help Percy in some way.
Some of the old monsters from Greek mythology that have a vendetta against Aphrodite's lineage could be the main antagonists. Maybe a spurned former lover of Aphrodite who was turned into a monster. This monster targets the daughter of Aphrodite and Percy because they are symbols of Aphrodite's power and influence. It constantly tries to harm them and thwart their plans.
Piper McLean could be a great addition. Since she has some connection to Aphrodite already. She could either help Aphrodite in her plans or try to protect Percy from her. And of course, we could add some minor gods or goddesses like Eros. He could be Aphrodite's little helper in creating chaos with love arrows, which would definitely fit in with the lemon aspect of the fanfiction if it involves some love - related mischief.
Obviously, Percy would be one of the main characters as it's a Percy Jackson fanfiction. And Aphrodite herself would be a key character since it's her challenge. Annabeth could also be involved as Percy's girlfriend, and her wisdom could play an important role in helping Percy face the challenge.
A possible main antagonist could be Eris, the goddess of strife. She might be jealous of Aphrodite's beauty and power and see Percy as a tool to disrupt Aphrodite's plans. Eris could send her minions to create chaos and conflict between Percy and Aphrodite, trying to make them turn against each other.
The children of Ares might also act as antagonists. They are often at odds with the followers of Aphrodite in the Percy Jackson universe. They might see Percy being the champion of Aphrodite as a threat to their own power and influence. So, they could constantly try to pick fights with Percy, both physically and by trying to turn other demigods against him.
One plot could be that Aphrodite's beauty has been stolen by a jealous sorcerer. Percy, being the hero he is, is called upon to retrieve it. He travels to the sorcerer's lair, which is filled with all kinds of traps. But using his quick thinking and the help of his friends, he overcomes the obstacles and forces the sorcerer to return Aphrodite's beauty.
One interesting plot twist could be that Percy, instead of falling for the Aphrodite trap in the expected way, turns the tables and uses the situation to his advantage. Maybe he pretends to be under the spell to gather information from the enemies who set the trap.
Sure. There are a lot of fanfics out there that keep the relationship between Percy and Aphrodite clean. Fanfic writers often explore the mythology aspect more. So, instead of sexual content, they might write about how Aphrodite's beauty and charm are used to influence Percy's actions in a more platonic way. Maybe she's trying to get him to do something for the greater good of the gods or something like that.