Forget carols, these mean girls have created their own Christmas anthem. Vadía, the temptress, starts the dance, her hips swaying sensuously. Anna, the vixen, joins in, their bodies colliding in a whirl of arms and legs. They laugh, their breath visible in the cold air, but their dance is far from innocent. It's a seductive symphony, a prelude to a night of passion, their bodies entwined like Christmas lights waiting to be plugged in.