A loud smacking noise resonated into the air, followed by a shaky cry that sounded like it came straight out of a horror movie.
"One...ah! Ah! Two!" Keith gasped out, shivering at the painful sensation of Shiro slapping his ass twice, one right after the other. The larger man took a moment to rub his hand against his cheeks, glaring down at him. Keith was bent over the side of the bed, kneeling on the floor with his stomach up on the mattress so that his naked ass was pushed back perfectly. Shiro stood just behind him, fondling his ass before drawing his hand back and smacking. "Three! S-shiro!" Keith whined, forehead pressed against the mattress.
Shiro made a quiet shushing noise, hand rubbing his slender back. "No complaining, Keith; you've been taught better. Now, tell me again. Why is this happening to you?" Shiro brought his hand down on Keith's ass hard, causing his entire body to tremble like an earthquake.
"AH! Four!" Keith yelled out, clenching his teeth together in pain. The sting on his ass was beginning to sink in without any touch, and he wasn't given any time to recover as Shiro's hand came back down on him.
"I said, tell me why this is happening to you," Shiro commanded, hand once again filling the room with the delicious sound of Keith getting spanked and his cries that followed.
"F-five! I-I deserve this! That's why!" Keith gasped out, hands digging into the sheets and clutching them for some sense of pain relief.
Shiro mused this over for a second. "That's right. But why do you deserve this? Tell me!" He shouted the last bit as he put more force behind his hand, smacking Keith's ass and leaving a good, red handprint across the cheeks. Every five spanks was a checkpoint; each time they passed one, he had to increase his roughness. Keith's body spasmed in response, ass shaking as he slammed his head into the mattress.
"Six! I-I deserve this...b-because I was bad...ah! Shiro! S-seven!" His back arched in response to Shiro's sudden seventh hit, bucking his ass back even more for Shiro's convenience. He purred at this, fondling his red ass and tracing the handprints gently.
"That's right, my boy. You were very bad...but I want you to be more specific." He brought his hand back before slamming it forward into Keith's ass again, grinning at the size of the boy's response.
"EIGHT! I was a bad...bad leader! So bad, I was so bad, I was - AH! N-nine!" Keith screamed, nails digging through the sheets and back into his own palms as Shiro smacked him in the middle of his sentence, and he could tell that he had nearly forgotten to count it. Good thing he remembered at the last second, otherwise Shiro would've punished him badly. He took a seat on the bed while his hand stroked up Keith's curved back, tilting his head to look over Keith's teary-eyed face. His thumb made its way up his cheek to wipe at his eyes, and he turned his head so that they were looking at each other.
"...hey. It's okay, we all make mistakes, even me. Okay?" Keith's bottom lip trembled, and he leaned into Shiro's hand, shaking his head slowly and letting a tear fall. Shiro quickly wiped at the tear with his thumb as Keith trembled.
"No...but I was horrible...I'm not a leader…" Keith trailed off, looking down. Shiro's hand left his face, raising itself above both of them before he brought his palm smacking down into Keith's ass. His entire back arched once more as tears flew from his eyes, and he screamed in agony. "T-TEN!" Shiro left his palm planted against his ass as Keith's breathing slowly began transitioning back to normal, and he grabbed Keith's chin with his other hand so that they were looking each other in the eyes again.
"Keith, look at me. Shh...it's okay, I promise. You'll get there in time, but you can't rush anything. You have to be…?" He waited for Keith to finish his sentence, and when he didn't answer right away, Shiro smacked him again.
"ELEVEN! P-patient! I have to be...patient! Patience, yields...f-focus…" Keith recited, swallowing the lump in his throat as his chest heaved in response to the pain. Shiro smiled at that, rubbing his red ass.
"That's it, good boy. Be patient, and you'll get there. Okay?" Keith took a few moments to just breathe deeply before opening his mouth, but it was too much hesitation for Shiro, and he smacked him again, unable to stop a grin from appearing on his face as Keith cried out and shook violently.
"TWELVE! Yes Shiro, yes, okay, I'll be patient! I'll do whatever you say!" Keith promised, abandoning the comfort of the sheets to instead move his face into Shiro's hand more, spreading his smile wider. Keith always made sure to say the number before he said anything else, like a good little obedient boy. He leaned his forward a bit, kissing at the top of Keith's head.
"You promise you understand? Tell me. Tell me what you understand."
Keith gulped. "I...it's not my fault. I can get better...if I'm patient…" He said slowly, knees rubbing together on the ground anxiously. Shiro stared at him for a while before smiling and kissing him again. His hand rubbed up and down Keith's sore ass comfortingly as his prosthetic hand cupped his cheek.
"That's right. No more doubting yourself. You'll get there." Keith sniffled a bit before nodding, and Shiro sighed in relief, moving forward to connect their lips in a passionate kiss. Keith opened his mouth up wide, taking Shiro's tongue into him in an expression of gratitude, and Shiro gladly accepted the invitation. It had been another successful disciplining session. Keith didn't learn like most; he wouldn't be able to understand that messing up was okay unless Shiro nailed the lesson into him, twelve times, apparently. He was definitely getting better.
They pulled away from each other, Keith's tongue briefly tracing over his lips to savor Shiro's taste. He smirked at that and let his hand explore Keith's hips.
"Thank you, Shiro," Keith said, keening into his touch and smiling. Shiro knew nobody else could do this to Keith except for him. Only he was able to discipline Keith this way, and only he was able to turn it into something positive. Only he-
"Ah!" Keith squeaked out, shoulders tensing up as Shiro's hand came upon his crotch. His eyes widened as all previous thoughts suddenly drifted away with a nonexistent draft in the room, his hand feeling up Keith's hard cock and pinching the skin a bit. He slowly turned to look Keith in the eye, and the smaller boy shrunk into the bed again.
"You enjoyed our spanking session, didn't you," Shiro said, voice growing dark and threatening, just like it always did whenever Keith got hard from a lesson, which was often. "These aren't for you to derive pleasure from, you little slut." Keith whimpered, but they could both tell he was excited as Shiro's hand moved back up to his ass, and he stood to tower over behind him again. "Guess I'll have to teach you all over again not to get hard from these." Shiro lifted his hand, making Keith wince a bit in anticipation. But before spanking, he spoke in a low, commanding voice, chest swelling with pride at the way Keith practically melted. "Listen. I'm going to spank you again and again until you aren't hard anymore, and if it takes making you cum five times from me hitting you alone, then so be it. Understood?"
Keith gulped before tilting his head down in a nod. "Y-yes, Shiro!" He shouted with eagerness; too much eagerness. Shiro's lips curved up into a smirk. Just how he liked it. He took a deep breath, building up the strength in his muscles. Then, upon exhaling, he let go of his restraint and brought his hand down onto Keith's body punishingly.
"THIRTEEN!"