Glancing up at Remus, Sirius raised a thin brow, the bridge of his nose crinkling up a bit. He hadn't really noticed just how short this new, female body was until he was standing there in front of his friend. Normally, he was used to being the one who always had to look down in order to make eye contact and quite frankly, he didn't like it the opposite way around - honestly, his neck was already starting to hurt. Of course, it could've been attributed to the hour or so he'd spent exploring his new form, but well, his sense of logic had never quite been on par.
His thoughtful expression quickly became something of a frown as he shifted his eyes to the jumper, hoping to catch at least an outline of Remus's breasts. Really, he couldn't help himself, it was genuine curiosity, one of his most prominent traits, but really, it wasn't every day that he and his mate were turned into very attractive women. Shifting his eyes back to his friend's face, Sirius emitted a soft sigh and crossed his arms over his chest, inadvertently hiking the white T-shirt up a bit higher on his legs.
"They're not even yours!" he said pointedly, his voice sounding squeakier as it raised, much to his surprise. "Now that's just odd, isn't it? I sound like a mouse. Suppose all very short people sound like mice, yeah?" Shrugging his shoulders he moved back and leaned against the railing of the stairs. "Suppose I can't..." he paused for a moment, unfolding his arms and clicking his hands together in an almost 'chicken dance' sort of manner. Laughing a soft laugh that sounded like a tiny yap rather than the deep bark it normally did, Sirius dropped his arms at his narrow sides.
"I've an idea," he said suddenly, his eyes widening a bit as he looked at his friend, but before he could explain what, exactly this idea was, Sirius turned on the heel of his bare feet and made his way back down the stairs.