One way to develop their relationship uniquely is through the Force. Anakin could discover that Baby Leia has a very strong but unrefined connection to the Force. He then takes it upon himself to gently guide her, not in the traditional Jedi way, but in a more personal and emotional way. This would create a deep and different kind of connection between them. Also, Anakin might share his own experiences of growing up as a slave with Baby Leia in a way that she can understand as she grows older, which would strengthen their bond on a very personal level.
To develop their relationship uniquely, imagine Anakin finding a way to communicate with Baby Leia through the Force on a subconscious level. He could send her feelings of safety and love during her most vulnerable moments. As she grows, she starts to have these strange, warm feelings towards Anakin without really knowing why. And when they finally meet face - to - face, there's an instant, unspoken understanding between them. Anakin could also be the one to introduce Baby Leia to some of the more beautiful aspects of the galaxy, like secret places full of natural wonders, which would be a special experience only they share.
Their relationship could be developed uniquely by having female Obi - Wan be the one who is more hesitant about the relationship at first. Anakin, being his passionate self, pursues her. But as she slowly opens up, she reveals a side of herself that is more vulnerable and in need of his love. This role - reversal from the typical dynamic can add a fresh perspective.
You could also explore their relationships in a post - apocalyptic Star Wars setting. Suppose there has been a great war that has changed the galaxy. Luke, Leia, Anakin (if redeemed) and Padme (if alive) have to come together and rebuild their family while also trying to restore order to the galaxy. Their relationships would be tested and strengthened in this new and difficult situation.
Their relationship could be explored through shared dreams. Since they are both strong in the Force, they could have dreams of each other even as babies. In the fanfiction, these dreams could be a way for them to communicate on a deeper level, sharing emotions and a sense of comfort, even though they are separated physically.
Imagine if All Might was initially hesitant to get close to baby Izuku because he was afraid of his own influence on such a young life. But then, an event like a villain attack on the city where baby Izuku is in danger makes All Might realize he has to step up. He saves Izuku and from that moment on, he decides to be a constant presence in Izuku's life. He starts teaching Izuku about self - confidence and hero values in a very personal and hands - on way, which develops their relationship in a really special and unique way.
Their relationship could develop uniquely if Rachel takes on a teaching role for the younger glee club members under Will's guidance. This role reversal would force them to see each other in new lights and create a deeper bond.
A unique way to develop their relationship could be through a series of challenges. For example, they are trapped in a mysterious dimension together and have to rely on each other to escape. In the process, they discover each other's strengths and weaknesses, and Kurama realizes that Kushina is not just Naruto's mother but a powerful ninja in her own right. This mutual respect and reliance would strengthen their relationship.
Their relationship could be developed uniquely by having them start as enemies in a sense. For example, Sephiroth could be on a mission that Aerith unknowingly gets in the way of. But instead of killing her immediately, he's intrigued by her. This initial encounter could spark a series of events where they keep crossing paths. Each time, they learn a bit more about each other. Maybe Aerith starts to see the pain behind Sephiroth's cold exterior, and Sephiroth begins to respect Aerith's strength and determination. Over time, this could lead to a complex relationship that is part friendship, part something more, as they both struggle with their own destinies and how the other fits into it.
Another way to develop their relationship uniquely is if Aipom gets a prophecy about a great danger that Ash will face in the future. Aipom decides to secretly train itself extra hard to be able to protect Ash. When Ash finally discovers what Aipom has been doing, he is touched and their relationship becomes even stronger. This would show a different side of their relationship, with Aipom being the protector instead of the one usually being protected by Ash.
Their relationship could be developed through a shared love of transfiguration. Hermione could seek out McGonagall for extra lessons and in the process, they bond over the beauty and complexity of the subject.
One way would be if they were both transported to a different dimension. In this strange new place, they have only each other to rely on. They would need to figure out how to survive and find a way back home. This shared struggle would bring out different sides of their personalities and force them to trust each other completely, thus developing their relationship in a very distinct way.