Perhaps in a scenario where Percy is about to sacrifice himself for the greater good. Triton, seeing Percy's selfless act, is so moved that he cries. Another situation could be when Percy is being wrongly accused and is facing great danger, and Triton, who knows Percy's true nature, cries out of frustration and worry for him.
One possible scenario is when Percy has to make a difficult choice between his loyalty to his friends and his duties to the underwater world. Triton, understanding the complexity of the situation, cries for Percy. Also, if Percy is seriously injured in a battle against a powerful enemy, Triton might cry because he values Percy's strength and presence in the world of 'Percy Jackson'. There could also be a time when Percy discovers a great truth that shakes him to the core, and Triton, witnessing Percy's emotional turmoil, sheds tears.
In a fanfiction, Triton could cry for Percy when Percy manages to bridge the gap between different factions in the mythological world. This act of unity might be so unexpected and powerful that Triton is overcome with emotion. Or, when Percy is lost in a strange and dangerous realm, Triton might cry because he fears for Percy's safety. And if Percy has to endure great pain, either physical or emotional, Triton, being somewhat connected to him, could cry for him.
One reason could be that Triton realizes Percy is a key figure in the grand scheme of things. Percy's actions have far - reaching consequences for the balance of power in the mythological world. Triton, as a figure in this world, is affected by these changes. He might cry for Percy because he sees Percy as a symbol of hope or a potential savior. And yet, he also knows the great burden that Percy has to carry, which makes him sad.
In the fanfic, it could be that Percy gets Triton as a gift from Poseidon. Triton could be initially reluctant to be with Percy, seeing him as an upstart half - blood. But as they spend time together, they start to understand each other better. Triton might help Percy improve his control over water, especially in more complex and powerful ways. They could go on quests together, like finding a lost ancient sea artifact that has the power to either save or destroy the world of the sea gods.
One scenario could be that Percy has some sort of magic spell cast on him that makes him smaller. Maybe a mischievous god or a powerful enemy uses a spell to shrink him for their own amusement or to gain an advantage in a battle. This would lead to some interesting situations where Annabeth has to protect him in a different way than usual.
One possible plot twist could be that Triton is not actually there to help Percy but is being controlled by an enemy to spy on him. So, Percy might think he has a new ally but in fact, he is being set up.
One possible scenario could be that in the fanfiction, some evil organization captures Percy and tries to figure out his powers related to being a demigod. They might subject him to various tests like trying to measure the limits of his ability to control water, or how he can heal from injuries that would be fatal to normal humans. Another could be that they experiment on his connection to the Greek gods, perhaps trying to sever or manipulate it in some way.
One possible scenario could be that Percy has faced so many traumas and losses in his battles against the monsters and gods' schemes that he simply feels exhausted and wants an end. For example, if he loses his close friends like Annabeth in a particularly brutal way, it might push him to the edge.
Obviously, Percy Jackson and Triton are the main characters. Percy is a demigod, son of Poseidon, with his own set of powers like controlling water and being a skilled fighter. Triton is a sea god, a son of Poseidon as well, and he has powers related to ruling the sea and its creatures.
Their relationship could start off rocky as Triton might be jealous of Percy's relationship with Poseidon. But over time, they could come to respect each other's abilities. For example, Percy's courage in battle and Triton's knowledge of the sea's secrets.
In a fanfiction about Percy Jackson with earthquake and hurricane elements, the story might start with an earthquake caused by an angry god. Percy then has to deal with the aftermath while also preparing for an approaching hurricane that the gods seem to be using as a second wave of destruction. He could call upon his friends from Camp Half - Blood to help evacuate people and fight off any monsters that emerge during the chaos.
One possible way is through a common enemy. If there's a threat to the sea, like a powerful sorcerer who wants to control it, Percy and Triton would have to work together. Their combined powers of Percy's demigod skills and Triton's knowledge of the sea could be a great asset. Another way is through a mutual friend. Maybe a mermaid or another sea - related creature that they both care about gets into trouble. This would force them to put aside any differences and bond while trying to save their friend. Also, they could bond over a shared prophecy. If there's a prophecy that involves both of them and the future of the sea, they would need to collaborate and in the process, form a bond.