Well, Poseidon's ability to create storms and control the tides could be used in a love story in relation to Demeter's power. When they are in love, Poseidon might hold back his more violent storms to keep Demeter's land safe. Demeter, with her power over the growth of plants, could create special plants that can survive in the salty air near the sea. Their powers could also combine to create a new kind of ecosystem, where the sea and the land are more connected than ever. This would be a symbol of their love, a harmonious blend of their different domains.
In a love story, their powers would interact in a very dynamic way. Poseidon's power over the sea is vast and often tempestuous. Demeter's power over the land is more about slow growth and nurturing. At first, they might struggle to understand each other's powers. But as their love grows, they start to find ways to complement each other. Poseidon could use his power to create underground water sources for Demeter's dry lands. Demeter could use her magic to make plants grow on the shores that can purify the water. This interaction of their powers not only shows their love but also how two very different entities can work together for the greater good.
Poseidon's power over the sea and Demeter's power over the land could create some interesting interactions. For example, Poseidon could bring rain from the sea to water Demeter's crops. Demeter could, in return, make the land near the coast more fertile, which would attract more sea life for Poseidon. In a love story, they could use their powers to create beautiful and unique places. Like a lagoon surrounded by the most fertile land, filled with fish and beautiful plants.
A plot could involve a prophecy that the union of Poseidon and Demeter would bring either great prosperity or great disaster. This prophecy sets the stage for their relationship. They start to secretly meet and fall in love. Poseidon might use his powers to create special underwater gardens for Demeter, and Demeter could make the lands near the sea more fertile in return. But as their love deepens, the other gods start to notice and some, like Zeus, might be worried about the implications of the prophecy. So they try to keep their relationship hidden while also trying to figure out how to deal with the prophecy.
Her water - controlling powers could enhance certain spells. For example, a spell that creates a mist or fog could be made more powerful with her help. She could also use her powers to manipulate the water in the air during a Transfiguration spell to make it more effective.
Not that I know of. Zeus had many romantic involvements, but not with Demeter.
In Percy Jackson fanfiction, the idea of Percy having a relationship with Demeter is quite an interesting concept. Demeter is the goddess of the harvest. A possible scenario could be that their love is based on Percy's respect for nature which Demeter represents. Maybe Percy helps Demeter in a quest related to protecting the harvest and in the process, they develop feelings for each other.
Another aspect of their power interaction could be in the area of teamwork. Naruto is used to fighting as part of a team in his world. Gwynevere, with her different powers, could fit into that team dynamic in a unique way. For example, if Naruto creates a diversion using his shadow clones, Gwynevere could use her magic to attack the enemies from a different angle. Their combined powers could be much more effective than either of them working alone, and they could develop new battle strategies based on how their powers complement each other.
Well, in some fanfictions, the magic spells from Harry Potter might be used to control or enhance Poseidon's powers. For example, a wizard could use a spell to direct the flow of water that Poseidon controls.
According to the mythology, Poseidon saw Amphitrite dancing and was immediately smitten. He courted her, though she initially fled from him. Eventually, through his persistence, she became his wife. In fanfiction, this could be elaborated in many ways. For example, the author might write that Poseidon first saw her from afar during a grand underwater festival. The way the light hit her as she danced made her look like a vision. He then sent his most trusted messenger to approach her, but she was shy and ran away, setting the stage for a chase - like love story.
His water - based powers might be more intense. Since he's directly related to Poseidon, he could have greater control over large bodies of water, like being able to create huge tidal waves with just a thought, instead of just small ones. He might also be able to communicate with sea creatures on a deeper level, understanding their complex languages and using them to his advantage in ways he couldn't before.
A possible fanfiction could explore how Amphitrite changes Poseidon. Before meeting her, he was perhaps more brash and impulsive. But with Amphitrite by his side, he becomes more patient and understanding. For example, when dealing with disputes among the sea creatures, he now listens more carefully and makes fairer decisions. Their love is a force that transforms them both for the better.
Their powers could interact in really cool ways. Zatanna's magic could be used to enhance Beast Boy's shape - shifting. For instance, she could use a spell to make his animal forms stronger or faster. In return, Beast Boy could use his animal senses when they're on a mission together. If Zatanna is trying to find a hidden magical item, Beast Boy in his animal form could sniff it out or sense it in a way that Zatanna's magic alone might not be able to do.