Christmas wasn't really the thing Sam enjoyed the most, especially after all these holidays from his childhood where he was alone with Dean, without their dad coming home. But since you wanted to celebrate with the brothers really badly, he finally agreed to it.

Both of you decided to bake some christmas cookies togheter because you really enjoyed baking in general. Sam brought all the stuff you needed for it and Dean was somewhere else, probably buying some weird stuff for Sam and you for christmas.

Sam was now in the kitchen with you and was preparing everything, unpacking the things for the cookies.