Well, it could be a story full of adventure. Poseidon, being a powerful god, might have to go on a quest to protect Sally and their unborn baby from other forces in the mythological world. Enemies could be jealous of the union or want to use the baby for their own purposes. Sally, on the other hand, could be using her own wits and courage, despite being pregnant, to help Poseidon in their journey.
One possible storyline could be about their journey towards parenthood. Poseidon might be shown as being overprotective of Amphitrite during her pregnancy. He could use his powers to create a safe and comfortable environment for her in the underwater realm. For example, he could make a special grotto filled with magical sea plants that emit a soothing glow and provide healing properties to keep her and the unborn child healthy.
Maybe Sally is a sailor who gets lost at sea. Poseidon, noticing her plight, rescues her. In the 'fanfiction', Sally could be someone with a special power that Poseidon is interested in. For example, she might be able to communicate with sea animals in a unique way. They then embark on a journey to find a lost treasure in the ocean that is said to have the power to control the tides. As they search, they learn more about each other and their respective worlds.
There could also be a situation where Poseidon's family eventually comes around. Maybe his more open - minded relatives see the love between Poseidon and Sally and decide to support them. They could offer their protection and help during the pregnancy. Sally's family, with time, might also learn to accept the situation and be excited about the prospect of having a half - god grandchild or relative.
Well, in this kind of fanfiction, Poseidon could replace Percy in his relationships too. He might interact differently with Annabeth. Since he's a god, his approach to their friendship or potential romantic relationship would be very different from Percy's. He could offer her godly knowledge and wisdom in a way Percy couldn't. And with his other friends like Grover, Poseidon would probably be more of a mentor figure, guiding them with his vast experience as a god.
Some fanfictions might focus on the love story aspect. How did Sally and Poseidon first fall in love? Was it a slow - burning romance or a sudden, passionate affair? Their relationship could also be a catalyst for change in the Percy Jackson universe. Maybe their union leads to new alliances among the gods. Or it could be about how they build a family together, with Percy at the center. There could be challenges like raising a demigod son in a world where their relationship is not fully accepted, and how they overcome these challenges as a couple.
Common themes in Sally and Poseidon fanfiction include the power of love. Their love is often portrayed as something so strong that it can bridge the gap between mortals and gods. Adventure is also a theme, as they embark on various quests or journeys together. Additionally, the theme of sacrifice pops up. Sometimes either Sally or Poseidon has to sacrifice something important for the sake of their relationship, like Poseidon sacrificing some of his power or Sally leaving her mortal life behind.
Well, in fanfiction about Sally Jackson marrying Poseidon, some might depict their courtship in a very romantic way. For example, Poseidon could use his powers in a gentle and loving manner to woo Sally. There could be stories where they meet in secret places, like a secluded beach where the waves seem to sing their love story. And the impact on Percy's life would be a major aspect too. He might have to deal with being the son of such a powerful couple, and perhaps face even more danger or gain more advantages because of it.
Another theme is the impact on their son Percy. Writers often explore how the relationship between Sally and Poseidon has influenced Percy's life, his powers, and his own understanding of love and family. For example, some fanfictions show Percy having a deeper connection to the sea because of his parents' relationship.
If Poseidon stayed with Sally, their relationship could have deepened and faced challenges from both the mortal and immortal worlds. It might have also influenced Sally's perception of the supernatural and her place in it.
One possible storyline could be that Natsu and Kagura's relationship starts off as a friendship. They might be on a joint mission where they face many challenges together. As they grow closer, they fall in love. Then, the news of Kagura's pregnancy could bring both joy and fear. Natsu might be initially shocked but then become extremely protective. They could then have to deal with the reactions of their friends and families, some might be supportive while others could be against it due to various reasons such as their different backgrounds or the dangerous world they live in.