"Good, because moving sounds really optimal," he answered as Sirius kissed him again. The feel of lips trailing down his body were making his skin tingle, and his blood rushed south, making him hard.
"God, you make me crazy," he said. "I want you so much. All the bloody times. The way you move, the way you kiss, the way you want me, I don't even remember what it was like before." Most of the times, he didn't think that words were enough to express how different he was thanks to Sirius.
"Fuck-" His eyes closed for an instant as Sirius' mouth closed around him, and he raised his hips gently, unable to stop. It felt so good, warm and wet, putting just the right amount of pressure, and Sirius swirled his tongue just so against the ridge. "You're brilliant.... don't make me come. Want to fuck you." It was amazing how little it took to make him incoherent, but Sirius was rather talented.