"Consequences of Midnight Strolls"

Sirius's grip on Regulus's wrist remained firm as he pushed his brother towards the desk in the center of the room. Regulus's eyes widened in protest, but Sirius was relentless. With a swift motion, he bent Regulus over the desk, his hands grasping Regulus's hips to hold him in place. "You should have thought of that before you decided to parade around the castle in your...undergarments," Sirius growled, his voice low and menacing. Regulus's face was pressed against the wooden surface, his thin t-shirt bunched up around his waist. His black thong offered little protection as Sirius raised his hand, palm facing downwards. The sound of the spank was loud and sharp, making Regulus yelp in pain. Sirius didn't hesitate, his hand coming down again and again, each spank landing with a resounding smack. Regulus's cries grew louder, his body trembling beneath Sirius's grasp. The punishments continued, with Sirius counting out loud, "One...two...three..." As the spanks continued to fall, Regulus's defiance began to crumble. His body began to shake, and his voice cracked as he begged for mercy. Sirius, however, was unyielding. He had never seen his brother so reckless and irresponsible, and he was determined to teach Regulus a lesson. The spanking continued, with Sirius's hand moving in a steady rhythm. Regulus's tears fell onto the desk, mixing with the scratches and scuffs on the surface. Finally, after what seemed like an eternity, Sirius's hand stilled, his chest heaving with exertion. Regulus lay still, his body trembling with sobs. Sirius's grip on his hips relaxed, and he slowly pulled his brother upright. Regulus's face was red and puffy, his eyes brimming with tears. Sirius's expression softened as he took in Regulus's pitiful state. He reached out, gently brushing a strand of hair from Regulus's face. "I'm sorry, Regulus," he said, his voice barely above a whisper. "But you had to learn. You can't just walk around the castle like that. It's not safe, and it's not respectful to the others." Regulus sniffled, his eyes welling up with fresh tears. "I...I was just..." he stammered, his voice cracking. Sirius's eyes narrowed, his curiosity piqued. "What were you doing, Regulus?" he asked, his voice gentle but firm. Regulus hesitated, his eyes darting around the room before finally settling on Sirius's face. For a moment, Sirius thought he saw a glimmer of something - fear, perhaps, or anxiety. But it was quickly replaced by a mask of defiance. "I was just...I don't know," Regulus muttered, his voice barely audible. Sirius's eyes locked onto his brother's, his expression searching. He knew that Regulus was hiding something, and he was determined to find out what.