Flock Off!

Or, How I Learned to Stop Worrying and Love Lethal Ladies from Outer Space. In which Harry Potter, after a drunken night of pranking MBI, ends up Winging the entire Discipline Squad. Which means he's now been conscripted by MBI. Oh dear. (Based on, with permission, "Angry, Angry Wizards" by sakurademonalchemist, and whitetigerwolf's 'Drunken Recruit' challenge! Harem!)