In the fanfiction, during their cuddles, they could make plans for the future. Maybe they plan a joint adventure or decide to do something special for their crew. This would show that their relationship is not just about the present moment of cuddling, but also about building a future together, which would develop their relationship further.
One way is through shared secrets. For example, Ace could tell Marco a secret he's been holding about his past that he hasn't told anyone else. This would deepen their connection during their cuddle time as it shows a new level of trust.
They could exchange small gifts while cuddling. It doesn't have to be something big, but a small token like a special seashell or a handmade item. This would add a cute and affectionate element to their relationship in the fanfiction.
Maybe it's a cold night at sea. Ace, who's not used to the cold as much as Marco, huddles up to him. Marco, being the kind-hearted person he is, just pulls Ace closer. They start reminiscing about their adventures and friends, creating a really warm and fuzzy moment.
One possible scenario in this fanfiction could be that Ace and Marco are facing a powerful and unknown enemy in a spooky, haunted island. The island is filled with strange noises and dark shadows. Ace's fire powers seem to be ineffective against this new threat as it keeps disappearing and reappearing. Marco, with his phoenix abilities, tries to scout from the air but gets caught in some sort of dark mist. They have to rely on each other and their friendship to overcome their fear and find a way to defeat this mysterious foe.
One way to develop their relationship further is through cultural exchange. Since Chopper is from Drum Island which has its own unique culture and Robin has traveled to many different places, they could exchange knowledge about different cultures. Robin could teach Chopper about the ancient cultures she has studied through Poneglyphs, and Chopper could share about the traditions on Drum Island. This would not only expand their knowledge but also bring them closer together as they learn more about each other's backgrounds.
On the other hand, it could potentially cause some friction. If their possessiveness leads to them being overprotective of each other, it might interfere with crew decisions. For example, if a mission requires one of them to be in a risky situation, the other might object due to their possessive feelings, which could create some internal conflict in the crew.
Their relationship can be developed through shared adventures. For example, when facing a really tough enemy, Luffy's determination to protect Robin and Robin's trust in Luffy's strength can bring them closer. Each time Luffy saves Robin from danger, it deepens her respect and loyalty to him.
It could be that they are trapped in a dark dimension. Here, the laws of the normal world don't apply. Ace tries to create fire, but it turns into ice instead. Marco's wings start to freeze when he tries to fly. They are surrounded by strange creatures that seem to be made of pure darkness. They have to work together to find a portal that will take them back to their world. Ace uses his intuition and Marco uses his knowledge of the One Piece world to search for clues on how to escape.
They could be given a task that requires them to rely on each other completely. Let's say they have to find a lost heirloom in a far - off land. Along the way, they share stories from their childhoods that they haven't told before. Rapunzel tells Flynn about her lonely days in the tower in more detail, and Flynn opens up about his early days as a thief. This deepens their bond.
Explore their relationships more. Maybe they have a long - lost family member who is a key figure in the One Piece world. By delving into this family connection, we can see different sides of the supernova character, such as their loyalty, love, and determination.
To write a believable relationship, first, understand Ace's character. He's brave, loyal, and has a bit of a wild side. Show the reader gradually getting to know these aspects of him. Have them start as acquaintances, maybe the reader is a new crewmate. Then, through shared experiences like battles or helping others, their bond grows. For example, they save each other's lives during a fight with a rival pirate crew.
The relationship could start with mutual curiosity. Luffy might be curious about Monet's unique abilities as a half - snow woman, like her ability to create snow and ice. Monet, on the other hand, could be curious about Luffy's unwavering will and his strange rubber powers. This initial curiosity could lead to them spending more time together and gradually building a bond.