Remus shivered. No one had ever touched him there, not since the day that the mediwizard had patched him up following the attack when he was seven. He even avoided touching that area himself, as much as he could. That Sirius accepted that part of him, so easily, without question... Remus was pretty sure that he couldn't put into words how much that truly meant to him. "S-S-Siri..." he whimpered, voice thick with not only arousal, but also with emotion.