One way could be through words of wisdom. Kakashi has a lot of life experience and could share his insights with Sasuke, like how to deal with his inner turmoil and the path he should choose. For example, he might tell Sasuke that revenge isn't always the answer and that there are other ways to find peace.
The significance also lies in the exploration of Sasuke's character development. He has been through so much trauma, and getting comfort from Kakashi can be a turning point in his journey towards healing and finding a new purpose. It's about Sasuke learning to trust and rely on someone other than himself for emotional support.
In a fanfiction, Sasuke could be kidnapped by a mysterious organization that is interested in his unique genetic makeup as an Uchiha. Kakashi would immediately start his investigation. He'd recall Sasuke's past enemies and possible motives. He might discover that the kidnappers are planning to extract Sasuke's chakra or use his body for some sort of experiment. Kakashi would then have to infiltrate their hideout, which could be filled with dangerous jutsu - based security measures.
In fanfiction, Kakashi might comfort Naruto by simply being there for him. Just sitting in silence, showing Naruto he's not alone. For example, they could be on the Hokage Rock and Kakashi would put a hand on Naruto's shoulder as they look over the village. It's a silent yet powerful form of comfort.
Yes, there might be some fanfictions out there with such an unusual plot. However, it may not be a very common or mainstream concept in the fanfiction community. Fanfiction often explores creative and sometimes out - of - the - box ideas, and this would be one of them.
In some fanfictions, it could be due to a special jutsu gone wrong. Maybe a jutsu that Kakashi was using to transfer some of his chakra to Naruto for a mission accidentally transferred his Sharingan power as well.
Kakashi would be deeply concerned. Given his relationship with Sasuke, he'd feel a strong sense of duty to save him. He'd use his extensive network of contacts within the ninja world to try and find out where Sasuke has been taken. He might also reflect on his past training with Sasuke and how he can use that knowledge to anticipate the kidnappers' moves. He'd be ready to face any danger or obstacle in his path to rescue Sasuke. And he'd be constantly thinking about Sasuke's safety and well - being during the whole process.
It would be very close. Kakashi would be like a father or an older brother to them. Naruto and Sasuke would respect and rely on him. They would probably have a more harmonious relationship with each other too, because Kakashi would be there to mediate any conflicts.
There could potentially be some really creative and out - of - the - box fanfictions with this concept. But finding one might be a challenge. You could try searching on specialized fanfiction websites and use specific search terms like 'Kakashi Sasuke non - traditional relationship fanfiction' and then look through the results to see if there are any that involve the idea of Sasuke being pregnant. But remember, this is a very unusual concept even for fanfiction.
One theme that's frequently seen is the exploration of Sasuke's dark past and how Kakashi tries to help him overcome it. There's also the theme of power. How Kakashi helps Sasuke control and develop his power in different and interesting ways. Friendship, in a way that goes beyond the normal sense, is also a common theme. They have a special connection that fanfictions like to expand on.