Defence Against the Bubble Baths

After watching an episode of FRIENDS (S09E15) the DADA teacher decides to teach all students who take Defence Against the Dark Arts about how to defend themselves from humiliation in the form of a bubble bath, and hilarity will ensue. Contains toy battleships, Teddy Lupin, some doubtful Hogwarts professors and a first year Victorie Weasley. Complete Crackfic