Remus and Sirius spend Christmas holidays alone at Hogwarts, developing their physical relationship while playing makeshift games and bonding deeply. Their intimate twelve days together include ice skating with Ravenclaw students, smoking weed, visiting the Hog's Head on Christmas Eve, and sharing quiet moments that strengthen their connection. The holiday ends with both boys setting off fireworks from their dormitory window as 1976 becomes 1977, marking a pivotal time in their secret relationship.