This side of Remus made him feel just a tiny bit too animal to be entirely comfortable, but the rest of the feeling was far too wonderful not to overshadow that tiny bit, so it all worked out in the end.
"Sirius..." he groaned, that growl sending waves of arousal crashing over him. He was fairly certain he did know what he did to Sirius, as Sirius did the same to him. And as for the things he wanted to do, oh, he wanted to hear all about all those things. At length. In that growl. He whimpered, hips pressing up against Sirius' hand as his trousers were undone. Beneath... well, of course Remus was a tighty whitey kind of guy.