Canine Chaos: Unleashed (Sonic the hedgehog au)

The adrenaline was a fickle mistress. As it drained from Sonic's system, replaced by the cooling salt spray of the harbor, a jagged, white-hot spike of pain shot up his right hind leg. When Scourge had slammed him into those crates, a splintered piece of heavy oak had caught him deep in the thigh, and the frantic scramble to stop Eggman had only ground the debris further into the muscle. Sonic's ears flicked back, a low, subconscious whine threatening to escape his throat. He suppressed it instantly. Not now. Not in front of the "Ultimate Lifeform" and definitely not in front of the kid. "Sonic? You're staring at the water like you've seen a ghost," Tails said, trotting over. The young fox's ears were perked, his twin tails swishing with concern. "You sure you didn't take a hard hit back there?" "Who, me? Please," Sonic barked, forcing a wide, toothy grin that didn't quite reach his emerald eyes. He shifted his weight, his right paw barely grazing the pavement. It felt like fire. "I'm just thinking about how much of a sh*t-show Eggman's dry cleaning bill is gonna be after pulling that scrap metal out of the drink." Shadow, who had been standing a few yards away, turned his head slightly. His Doberman instincts were finely tuned; he noticed the slight tremor in Sonic's flank, the way the blue Shepherd was overcompensating with his front shoulders. "The Doctor is the least of your concerns if you can't even stand straight, Hedgehog," Shadow rumbled, his voice like grinding stones. "I'm standing fine, Shads! Watch and learn," Sonic quipped. To prove the point, he ignited his heels. "Catch ya later, guys! I gotta run this adrenaline off. Last one to the house is a rotten egg!" Before Tails could protest, Sonic exploded into a sprint. He pushed through the agony, his vision blurring for a split second as he forced his injured leg to drive into the asphalt. Fck, fck, fck,* he hissed internally with every stride. He didn't head for the main roads; he veered into the narrow alleyways of the warehouse district, needing the cover of the shadows to finally let the mask slip. The Breakdown Two miles out, behind a rusted shipping container, Sonic finally collapsed. He skidded into a heap, his chest heaving, his cobalt fur matted with sweat and road dust. He let out a sharp, ragged yelp, pulling his leg toward his chest. The fur on his thigh was stained a dark, tacky crimson. "D*mn it," he wheezed, his tongue lolling out as he panted. "Stupid... reckless... shepherd instincts." He tried to lick the wound, but the movement sent a fresh wave of nausea through him. The world felt tilted. He closed his eyes, leaning his head against the cold metal of the container, listening to the distant sounds of the city he had just saved. "You were always a terrible liar." Sonic's ears shot up. He tried to scramble to his feet, but his leg buckled, and he let out a pathetic, stifled bark of pain. Shadow stepped out from the gloom of the alley. The Doberman looked even more intimidating in the low light, his red markings appearing like blood under the flickering streetlamps. He didn't look angry, though; he looked frustrated, his docked ears twitching with an emotion Sonic couldn't quite place. "Go away, Shadow," Sonic groaned, resting his head back down. "I'm just... taking a nap. High-speed recovery, you know?" "Shut the f*ck up, Sonic," Shadow snapped, though the growl lacked its usual malice. He walked forward, his heavy paws silent on the concrete. He knelt beside the Shepherd, his presence looming and warm. "You've got a piece of a crate embedded in your muscle. If you try to 'run it off' any further, you'll be a tripod by morning." A Fragile Peace Sonic expected a lecture. He expected Shadow to mock his weakness. Instead, he felt the cool, steady pressure of Shadow's muzzle gently nudging his injured leg to get a better look. "Stay still," Shadow commanded. "Or what? You'll bite me?" Sonic joked weakly, though his tail gave a small, involuntary thump against the ground. Shadow didn't answer. He reached into a small pouch on his utility belt-standard G.U.N. issue-and pulled out a specialized antiseptic spray and a roll of gauze. With surprising tenderness for a dog built for destruction, he began to clean the wound. Sonic winced, his claws digging into the dirt. "F*ck! Easy with the stingy stuff!" "Stop squirming like a pup," Shadow muttered, his concentration absolute. As he worked, he leaned closer, his black fur brushing against Sonic's cobalt coat. The scent of the Doberman-rainwater, expensive leather, and a hint of dark chocolate-washed over Sonic, strangely grounding him. For a moment, the rivalry vanished. There was just the quiet hum of the city and the rhythmic breathing of two rivals-turned-something-else in the dark. Shadow finished wrapping the bandage, his teeth nipping the end of the gauze to secure it. He didn't pull away immediately. He lingered, his forehead resting briefly against Sonic's shoulder. "You're an idiot," Shadow whispered, his breath warm against Sonic's fur. "But you're the only one in this city who can keep up with me. Don't make me finish the race alone." Sonic felt a strange flutter in his chest that had nothing to do with running. He let out a long, shaky breath, his ears relaxing. "Yeah, well... someone's gotta show you the back of my heels, Shads." Shadow huffed-a sound that was almost a laugh-and stood up, offering a sturdy shoulder for Sonic to lean on. "Come on. Tails is already losing his mind. We're going back to the house. And if you tell anyone I helped you, I'll break the other leg." "Got it," Sonic smirked, leaning heavily into the Doberman's side as they began the slow wa lk home. "Our little secret."