To woo a witch

It was nearing the annual Yule Ball of their seventh year, and Harry Potter was determined to win the heart of the one he loved. With the help of the New Marauders and a page that could've been lifted from the 'The full proof method to woo a witch handbook' created by James and Sirius Black. Voldemort was defeated by James and Lily, no Horcruxes, Magical World at peace. Oneshot.