"Move over," Derek murmurs as he climbs into bed next to Stiles and wraps his arms around him.

"Oh my god, you're so warm," Stiles gasps and burrows closer, letting his lips brush against the soft skin of Derek's collarbone. "You're staying here the entire winter. In my bed, warming me up."

Derek hums in agreement and kisses the top of his head, content with watching the snow fall outside.