You could explore their relationship by showing how they first met in a more detailed way in the fanfiction. What were their first impressions of each other? What made them fall in love? Also, showing their small arguments and how they resolve them can give more depth to their relationship. For instance, they might argue about how to discipline the puppies, but then find a compromise that strengthens their bond.
In the fanfiction, their relationship can be explored through shared hobbies. Suppose they both discover a love for painting. They could spend time together painting pictures of the dalmatians and the countryside. This new shared activity brings them closer and they learn more about each other's creativity and emotions. It also gives them a chance to relax together away from the chaos of taking care of so many puppies.
One way is to show their daily conversations. For example, they could talk about their dreams for the future, like having more puppies or traveling to new places. Another is to depict how they support each other during difficult times. Maybe Anita has a problem at work and Roger is there to comfort her with his music and kind words.
A plot could revolve around Roger and Anita hosting a big party for all the dalmatians' friends. They have to plan everything from the food to the entertainment. Roger might be in charge of the music and Anita the decorations. Along the way, they encounter some problems like not having enough food or a sudden rainstorm threatening to ruin the party, but they manage to solve them together.
You could also explore their relationship in the context of parenting. Show how they have different parenting styles but still work together to raise their children. For instance, Naruto might be more lenient and want their kids to have fun and explore, while Hinata is more cautious and focuses on teaching them proper ninja etiquette. The way they resolve these differences can show the strength of their relationship.
Explore their relationship in terms of loyalty. Rex was always loyal to Ahsoka, and she to him. You could write a story where that loyalty is tested. Maybe they are faced with a situation where they have to choose between each other and the greater good, and how they navigate that choice would show a deeper side of their relationship.
Their relationship can be further explored by focusing on their non - verbal communication. Since Nezuko can't speak much as a demon, the looks they exchange, the way Tanjiro gently touches her head to reassure her, these small gestures can be delved into. For example, in a dangerous situation, Tanjiro's glance at Nezuko could convey a whole world of trust and protection.
Their relationship can be explored further by delving into their unspoken emotions. For example, Sebastian might have some unexpected feelings towards Ciel beyond just the contract. You could write about how he struggles with these feelings when Ciel is in danger, not just because of the contract but also due to a deeper emotional connection. Another way is to show how Ciel truly trusts Sebastian on a level deeper than just master - servant. Maybe in a situation where Ciel has to choose between his goals and Sebastian's safety.
You could explore their relationship in times of crisis. Say Hiccup gets injured and his dragon has to take care of him. It could bring food, keep him warm, and protect him from other threats. This would show the deep bond of loyalty and care between them. Also, showing how they train together for new skills can further the exploration. They might face difficulties at first, but through patience and trust, they master the new skills, strengthening their relationship.
In fanfiction, their relationship could be deepened by having them share personal stories from their past. Maybe while waiting for an attack, Tony tells Peter about his early days as Iron Man and the mistakes he made, and Peter in turn shares his feelings about losing Uncle Ben. This would bring them closer.
The relationship can be explored through their different fighting styles. Deadpool's acrobatic and unorthodox style compared to Logan's more brute - force approach. Writers can show how they learn from each other in battle, which deepens their bond.
The relationship can be explored through battles. For example, a fanfic could show a battle between them where they both realize they are evenly matched and start to respect each other's power.
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.