In this fanfiction, perhaps Sally's pregnancy is a time when she discovers a newfound love for all things lemon. She could be making lemonade, using lemon - scented products around the house while she is pregnant. And the story could revolve around how these simple things bring a touch of joy to her pregnancy.
The lemon theme could be incorporated through her diet. For example, she could be constantly eating lemon - flavored candies or making lemon pies during her pregnancy. It could also be that she decorates the nursery with lemon - colored items.
One possible fanfiction could be about Sally Jackson making lemonade for Percy and his friends during a hot summer day at Camp Half - Blood. It could show a warm mother - son moment between Sally and Percy, with the lemonade as a symbol of comfort and home in the midst of the chaos of the demigod world.
A plot could be that Sally Jackson plants a lemon tree in her garden that turns out to be a gift from a minor goddess. The lemons from this tree have the power to give those who eat them the ability to see through illusions for a short time. Percy uses these lemons to his advantage when he is on a mission to retrieve a powerful artifact that is guarded by a monster that uses illusions to protect it.
A fanfiction might revolve around a day in the life of Percy and Sally. The lemon could be part of a recipe that Sally is making when suddenly something from the demigod world interrupts. For example, a monster is drawn to the smell of the lemon dessert she's preparing, but Percy is there to save the day. It could show the normalcy of their life mixed with the chaos of the demigod world.
One possible plot development could be exploring how Percy and his friends deal with this unexpected situation. Maybe they would have to face the reactions of the demigod community. It could also lead to Percy having to grow up very quickly and take on more responsibilities.
One idea could be Sally and Poseidon having a secret adventure together that involves solving a mystery related to the sea. Maybe they discover a hidden underwater civilization that is in danger.
Well, a plot could revolve around Sally getting into some kind of trouble in the mortal world, and Percy uses his demigod powers to save her in a very creative way. This could lead to a lot of emotional moments between them as they realize how much they mean to each other. Or it could be that Percy brings Sally to Camp Half - Blood for a special event, and they have all sorts of adventures there together, meeting new characters and facing challenges as a duo.
Poseidon should definitely be included. His relationship with Sally and his reaction to the pregnancy would add a lot of depth. Percy Jackson, their son, could also be a great addition. His concern and protectiveness towards his mother during this time would be interesting to explore.
One common plot could be Sally's pregnancy journey while dealing with the challenges of her partner's (Poseidon perhaps in some fanfictions) absence. Another might be how she prepares for the baby in a world filled with mythological threats and wonders. For example, she could be seeking protection from other gods or demigods during her pregnancy.
I'm not a big advocate for 'lemon' fanfiction as it often goes against the intended spirit of the original work. However, if you're just interested in well - written stories about Percy and Sally's relationship, look for ones that explore their bond, like how Sally's love and support shaped Percy. Some fanfictions might show flashbacks of their time together or Sally's influence on Percy's decisions, which can be really interesting to read.