A realistic portrayal of the relationship in a teacher x reader story can be achieved by showing the evolution. At first, it might be a strictly teacher - student relationship. As time passes, they might start to understand each other better. Include small details like how the teacher reacts when the reader asks a difficult question. Is it with impatience or encouragement? Also, the environment plays a role. A crowded classroom versus a one - on - one tutoring session will have different relationship dynamics. Show how these different situations affect the relationship realistically.
To portray the relationship realistically, show the power dynamic. There's an inherent authority that the teacher has. But also show the teacher as a human with flaws. For instance, the teacher might make mistakes in teaching methods. The reader should be shown as having their own thoughts and not just blindly following. Interaction outside the classroom can also be depicted realistically, like in after - school clubs or during study sessions where the relationship can develop more casually.