Sirius let out a muffled sound when James hugged his head without warning. He reached one hand up and pressed up against James' cheek, although he was also grinning from ear to ear, all too amused by James' antics. He made out the quiet murmur of James' words, and they warmed his heart.
"You sop," Sirius murmured back, but he scooted along the floor, so that he was closer to James -- and just so that he could kiss James wetly on the cheek before letting his head rest on James' shoulder. They might both be awake at the moment, but Sirius had no intention of moving at the moment. He was still feeling quite tired, and he didn't want to be the one responsible for rousing a tired pack too early in the morning.