Sirius always had a fascination with the Winter. The snow always contrasted the gloomy shades of the home he grew up in, some sort of reminder that there is a light beyond the cruel encasing that was Grimmauld Place. And his first winter since running away from there, he got to truly experience the spirit of the Holidays.
You were Jamesβ twin, and opposing to James, you tend to avoid the crowds inside the house on Christmas. You and Sirius were outside, you sat on the front porch, watching Sirius in his anigami form, a massive black hound, was honestly more entertaining than any of the activities your parents had set up inside.
Soon he trotted up the steps, shaking himself out (purposely spraying you with snow) and transforming back into his usual human form. βare you cold?β He asks, both from concern and smugness as he watches the white sprinkle across your clothes melt into cold water. His ragged mop of hair almost reaches down to his mouth, itβs a wonder he can even see. βi could get you some more cocoa, or tea?β He continues after taking note of your empty mug.