Though he didn't know quite what it was, Sirius felt the jealousy that had been raging inside him ever since Remus had left quell some at the vigorous way that Remus returned the kiss. He was still spinning though, and the need for solid ground had Sirius tugging Remus closer to him, pulling until Remus was settled on top of him which had his sighing in relief and wrapping a leg smoothly around his waist to keep him there. Breaking the kiss in favor of tracing his delicate jaw line with his lips, he nursed the spot just beneath his ear as he arched up into him.