Sirius furrowed his brow, turning to look fully at Remus now. "Remus Lupin, are you asking me to break the rules?" he asked, a gleeful smile gracing his features, "To sneak into a restricted area and take something that isn't mine?" he continued, looking ecstatic with the idea. "Do you even need to ask? I'm the best sort of sneak there is, kind sir. I'm stealthy, charming, and incredibly sly" Sirius said with a flirtacious wink.
"What book do you need? Is this for more of your boring research for the sake of research?"