A fanfiction could show Sasuke and Naruto's bond as something that has been there since their early days. Sakura, on the other hand, is seen as a hindrance. She might be written as a character who is always trying to get Sasuke's attention in a way that annoys both Sasuke and Naruto. For instance, she could be constantly interrupting their training sessions together. As a result, Sasuke and Naruto become even closer as they face this annoyance together, and their bond becomes unbreakable.