Sirius couldn't help the shiver that ran through him, at Remus' voice, at the look in his eyes, at...all of it. This was a side of his best friend he'd never seen before, and...well, to be quite honest, it made him a little weak in the knees. He was something of a sexual chameleon, his tastes in the bedroom rather flexible depending on who he was with, but the feeling that was coming over him as Remus asserted dominance of the situation...that was new. And exhilarating.

His tongue flicked out to wet his lips, his gaze dropping to Remus hand no matter how many times he tried to drag it away, and he crossed his arms and grabbed the hem of his shirt, leisurely lifting it and pulling it over his head, discarding it to the floor when he was done. His fingertips trailed down the centre of his chest, over his abdomen, until he reached the low-slung waist of his trousers, popping the button and undoing the zip one-handed. Now his eyes were on Remus' face, wanting, needing to see if he was indeed pleasing him.