The Disarming Fiasco

There was one rule at Hogwarts School of Witchcraft and Wizardry: NEVER get on Professor Simms' bad side. Unfortunately, Albus Severus Potter disliked playing by the rules almost as much as his brother did. Even more unfortunately, it was his best friend that paid the price. NO YAIO. Mild Rose/Scorpius (so mild you can hardly even see it, actually). One-shot.