Annabeth could be one. She's been Percy's close friend and has a strong connection with him. Also, Piper could be a part as she has her own charm and abilities. And maybe Thalia, with her fierce nature.
In my opinion, Reyna would make an interesting addition. She's a strong leader and her skills would complement Percy well. Then there's Hazel, with her knowledge of the Underworld and her kind heart. And of course, Calypso, who has a special history with Percy. These characters all have different personalities and abilities that would create an interesting dynamic in a harem situation.
Definitely Annabeth as she's been by Percy's side through so much. Then there could be some new characters introduced, like a daughter of a minor god who has a unique power and is instantly drawn to Percy. Also, an Amazon warrior who respects Percy's strength and wants to be part of his group. This mix of old and new characters would make for a diverse and exciting harem in the fanfiction.
Annabeth could be a likely member as she has a deep connection with Percy already. Another could be Piper, given her charm - speaking abilities and her friendship with Percy. And maybe Hazel, with her unique powers and kind heart.
How about a daughter of Hecate? She could have magical powers that would complement Percy's skills. The Fates might bring her into Percy's life because they know that her powers could be crucial in future battles or quests. And then there's Calypso. She already has a connection with Percy, and the Fates could make it so that she becomes a more permanent part of his life, adding to his 'harem' situation.
In a Naruto and Percy Jackson mass harem fanfiction, Naruto's side might include Tenten and Temari. They are strong and independent characters who could add interesting dynamics to the harem. For Percy Jackson, Reyna could be in the harem. She has leadership qualities and her Roman heritage could bring in new elements. And let's not forget some minor characters from both universes could be given more spotlight in the harem, like some of the nymphs from Percy Jackson's world or some of the kunoichi trainees in Naruto's world.
Obviously, Annabeth Chase could be one of the main characters in the harem. She already has a strong connection with Percy. Then, there could be Thalia Grace, with her cool and powerful demigod nature. From other mythologies, Artemis could be an interesting addition. Despite her vow of chastity, in a fanfiction world, she could be drawn to Percy in a different way. Also, maybe a character like Katara from Avatar: The Last Airbender could be brought in through some sort of crossover magic, adding an element of water - bending to the mix.
Definitely Annabeth. Since she has a strong connection with Percy already, in a time travel scenario, she could be one of the main characters in the harem. Also, Piper could be there. Her charm - speak ability might play an interesting role in the harem dynamics. And perhaps some of the minor female characters from the series like Silena Beauregard could also be included if Percy travels to a time when she was still alive.
There's also 'Percy and His Harem of Allies'. In this fanfiction, it combines action and the development of Percy's relationships with his harem. The author does a great job of writing the characters' interactions and how Percy copes with having multiple close relationships. It's a really exciting read.
Yes, it is quite popular. Many fans enjoy exploring different relationship dynamics for Percy Jackson in fanfiction, and the 'harem' concept, where he has multiple romantic interests, offers a lot of creative possibilities for writers to play with different character interactions and storylines.
One problem could be the deviation from the original source material. The Percy Jackson series is about Greek mythology and adventure, not BDSM or harems. So it might not be appealing to fans who love the original story for what it is. Another issue is the potential inappropriateness. BDSM themes can be adult - oriented and not suitable for all audiences, especially considering the younger fan base of Percy Jackson.
There could be some new original characters in his harem. For example, a time - traveler from the future who got stuck in Percy's time due to a time - rift. Also, a nymph who has a special connection to the concept of time and was drawn to Percy when he became the god of time. And of course, Hazel might also be part of it, with her ability to manipulate the Mist and her connection to the Underworld adding a unique aspect to the harem.
Another theme is friendship within the harem. Often, the members of Percy's harem are his friends first, and the fanfictions explore how these friendships can transform into something more. They also show how the characters support each other through various challenges.