Maybe Palpatine sees Ezra as a potential tool or apprentice at first. He tries to manipulate Ezra into joining him. Ezra, on the other hand, is conflicted because he might see some good in Palpatine's grand plans for the galaxy, but eventually realizes the cost of following the dark side. Their relationship would be a complex dance of manipulation and resistance.
Perhaps Ezra gets transported back in time and encounters a younger Palpatine. Ezra tries to prevent Palpatine from turning to the dark side, but in the process, he has to face the challenges of the political and social environment of that time. This could lead to a complex story of moral dilemmas and power struggles.
The relationship could be developed uniquely by having Sabine's futa nature play a role in their communication. For example, she might have a different way of expressing emotions or intentions because of it. Ezra could learn to understand this new aspect of her, and it could bring them closer together.
Their relationship can be developed through shared experiences. For example, going through tough battles together can make them rely more on each other and deepen their bond. Ezra can learn more about leadership from Hera, and Hera can see Ezra grow as a Jedi, which would bring them closer.
After getting married, their relationship would expand beyond just being friends or comrades. They would become more domestic in some ways. For example, they might have private jokes and traditions that are unique to their married life. Also, they would be more in tune with each other's emotions and needs, having to consider the other person in every decision they make. They would be more united in facing the outside world, whether it's dealing with enemies or making new allies.
The storyline would take a huge turn. Instead of the Empire rising as it did in the original, there could be a new era of peace. The Jedi Order might be restored more quickly, and Anakin could become a hero instead of Darth Vader.
In this fanfiction, the story might start with Naruto being recruited by Palpatine in a very sneaky way. Palpatine might disguise his true intentions well. As Naruto begins to work, he starts to notice the negative impact of Palpatine's actions on the people. Naruto's strong moral compass kicks in, and he tries to find a way to stop Palpatine without causing too much chaos. He might try to use his charisma and the relationships he builds in the Star Wars universe to create a resistance against Palpatine. It could be a story of Naruto's struggle between his loyalty to his new employer (at first) and his sense of what is right and wrong.
Respect the source material. The Star Wars universe has its own set of rules and ethics. Don't go against the overall theme and values of the series. In terms of the 'lemon' part, avoid making it overly vulgar or disrespectful to the characters. It should be a natural progression of their relationship within the boundaries of the world they exist in.
The galaxy would have been in chaos. The balance of power would shift dramatically, and there would likely be power struggles among the Jedi and other factions.
Their relationship could start with mutual respect due to their Jedi training. As they go on adventures together, they'd grow to trust each other more. For example, in a fight against the Empire, Ezra might save Ahsoka's life, deepening their bond.
Their relationship would likely become more deeply bonded. Having a baby is a huge step, and they would have to rely on each other more. They would become a team in taking care of the baby, sharing responsibilities like feeding, changing diapers, and putting the baby to sleep.