Perhaps in the fanfiction, Fugaku was teaching baby Sasuke about their family's heritage. He could have told Sasuke stories about the great Uchiha warriors, their Sharingan abilities, and the importance of loyalty to the clan. This would not only bond them but also plant the seeds of pride in Sasuke for his family, which would later influence his character development.
On the other hand, Fugaku could also be a very loving father in fanfiction. He might spend a lot of time just holding baby Sasuke, looking into his eyes, and thinking about how much potential his son has. He could be very gentle when Sasuke is fussy or crying, trying to soothe him in a very tender way.
Since 'lemon' fanfiction often contains inappropriate content, let's consider general Sasuke and Fugaku fanfiction. There might be stories that delve into Fugaku's perspective of Sasuke's potential. Maybe Fugaku could see the great power within Sasuke early on and has high hopes for him. This could be a story of a father - son relationship full of pride, expectation, and some misunderstandings as Sasuke grows up.
One theme that could be made appropriate is the theme of redemption. Maybe Fugaku has made some mistakes in the past that affected Sasuke, and through a series of events, he tries to make it up to Sasuke. This can be explored without any inappropriate content and still show the complexity of their relationship.
One way to develop their relationship is through a series of difficult conversations. Given their different backgrounds and the history between the Uzumaki and Uchiha clans, there are bound to be misunderstandings. By having honest conversations about things like the Uchiha massacre, Naruto's status as an orphan, and Fugaku's role in the Uchiha clan, they can start to break down barriers. Additionally, if there are situations where Naruto has to protect Fugaku's family members or Fugaku has to support Naruto in a village - wide crisis, it will show their loyalty to each other and further develop their relationship.
One possible scenario in this fanfiction could be Fugaku seeing Sarada's potential and taking her under his wing to train her. He might recognize her Uchiha blood and want to ensure she becomes a strong shinobi like the Uchiha of old.
One main theme is loyalty. Fugaku's loyalty to the Uchiha clan is often explored. Whether it's his loyalty to the clan's traditions or his loyalty to his family members within the clan. Another theme is power. As the leader of the Uchiha clan, Fugaku has a certain amount of power, and fanfictions often look at how he wields it.
A 'fugaku raises naruto fanfic' might be centered around the idea of Fugaku seeing potential in Naruto. It could involve Fugaku protecting Naruto from the early hardships he faced in the original story, perhaps leading to a different path for Naruto in terms of his ninja skills and relationships within the village.
Themes of loyalty and betrayal can also be present. For example, loyalty to their respective clans versus loyalty to each other. There might be situations where they have to choose between their clan's interests and their relationship. Additionally, some fanfics might explore the theme of redemption, especially if one of the characters has made mistakes in the past. Their relationship could be a means of finding redemption or a new path in life.
Friendship and mutual understanding are big themes. Since Naruto is so different from the Uchiha, the female Fugaku's relationship with him allows for a deep exploration of how two very different individuals can come to understand and support each other. Also, leadership is sometimes a theme. As Naruto grows into a leader and the female Fugaku may have her own role within the Uchiha clan, their combined leadership or influence on each other in that regard can be a major part of the story.