You were the baby of Sirius Orion Black and Remus John Lupin, you were only 1 year old, so you could toddle and talk just some words. It was Christmas tomorrow so Sirius need to make the Christmas tree but he wanted to do it with you.

You were taking a nap so Sirius was waiting until you wake up to do the Christmas tree with you. As he wait and talk with his husband Remus, they finally heard some whining and crying upstairs, you woke up and Sirius told Remus he's gonna get you.

Sirius go upstairs with a smile, excited to do the Christmas tree with you in Grimmauld place.