Chapter Text
Amy’s house had been transformed into something warm and glowing, the kind of place that felt almost suspended outside of time. Soft golden lights had been strung along the walls and ceiling in gentle loops, casting a honey-colored shimmer across the room and making every polished surface gleam. Music drifted through the space in a low, cheerful hum, just loud enough to fill the silences without drowning out conversation, and every now and then laughter rose above it in bright bursts from the other side of the room.
The air smelled faintly of vanilla frosting and fruit punch, mixed with the comforting scent of baked snacks Amy had spent the entire afternoon making. Everywhere Sonic looked, the room was alive with motion, friends chatting in clusters, someone reaching for another cupcake, someone else dancing badly in the corner just to make everyone laugh, but despite all of it, the evening felt peaceful. For once, there was no rushing wind in his ears, no danger pressing at his back, only the rare and pleasant feeling of being able to slow down.
Sonic sat comfortably on the couch, one leg thrown over the other in a posture that looked casual enough to fool anyone who didn’t know him. Beside him sat Tails, curled into the corner cushion with a plate balanced carefully on his lap, his twin tails flicking every now and then with idle contentment. Knuckles occupied the opposite end of the couch, broad shoulders relaxed, arms folded loosely across his chest as he leaned back into the cushions. The three of them had drifted here almost without thinking, drawn away from the louder crowd and toward a quieter little island in the room where they could simply exist together. Tails had been talking about one of his latest inventions, something involving upgraded flight stabilizers and improved energy output, but even he had eventually let the conversation soften into easier, more aimless chatter. Sonic liked moments like this, moments where no one needed anything from him. He could just sit, grin, tease his friends, and let the night stretch on.
Tails was in the middle of explaining why one of his calculations had been “brilliant, actually,” when Sonic’s attention shifted. It wasn’t anything obvious at first, just the smallest flicker in the corner of his eye. Knuckles, who had been half-listening and occasionally grunting a response, had gone strangely still. His gaze wasn’t on Tails anymore, nor was it on the party around them. Instead, it had settled somewhere distant, unfocused, as though he were staring straight through the room and into some thought only he could see. Sonic frowned ever so slightly, his easy smile softening into something more curious. Knuckles wasn’t exactly known for zoning out like this, especially not at parties where there was plenty to keep him occupied.
At first, Sonic tried to ignore it. Maybe Knuckles was just tired, or maybe he’d gotten bored with Tails’ endless technical jargon. But a minute passed, and then another, and Knuckles still hadn’t really moved. Tails eventually noticed too, though he didn’t say anything, merely glancing over before returning to the remnants of his cupcake. Sonic, however, had never been particularly good at leaving things alone. His eyes narrowed with amused suspicion, and a crooked grin began to tug at the corner of his mouth. Whatever was going on in Knuckles’ head, it was clearly more interesting than whatever was happening in the room.
Sonic leaned a little closer, nudging Knuckles lightly with his elbow. “Hey,” he said, voice casual and easy, pitched low enough not to carry beyond the couch. “You okay over there?” His tone held its usual teasing warmth, but beneath it was something genuine, a note of concern he didn’t bother hiding. “You need some fresh air or something?” The question came naturally, as effortless as breathing. For all the jokes he made, Sonic paid attention to the people he cared about, often more than they realized.
Knuckles blinked, as though the sound of Sonic’s voice had yanked him back from somewhere far away. For a second he just stared at him, then huffed out a quiet laugh and shook his head. “Nah,” he said, voice low and rough, though not unfriendly. “Everything’s fine. Don’t worry about me.” His answer came quickly, almost too quickly, and Sonic caught the way Knuckles’ gaze flicked away right after he said it. It was subtle, the kind of thing most people probably wouldn’t notice. Sonic noticed.
A small laugh escaped him, light and playful. He leaned back into the couch, crossing his arms now as he turned fully toward Knuckles, the grin on his face widening into something knowingly mischievous. “Everything’s fine, huh?” Sonic repeated, dragging the words out with exaggerated disbelief. “Buddy, you’re thinking so hard you practically left the room.” Tails snorted softly beside them, clearly entertained, though he wisely stayed out of it. Sonic tilted his head, blue quills catching the warm light. “If you keep zoning out like that, I’m gonna start thinking something’s actually going on.”
Knuckles let out another laugh, this one more genuine, and for a moment some of the distant look in his eyes eased. “You really don’t let anything go, do you?” he muttered, shaking his head. There was fondness in his voice, the kind born from years of knowing exactly how relentless Sonic could be when his curiosity got hold of something. Sonic only shrugged, unashamed. It was true, after all. Once he noticed something, he had a habit of running with it.
“Hey, somebody’s gotta keep an eye on you,” Sonic shot back, flashing him a bright, toothy grin. “Besides, you look like you’re carrying around the secrets of the universe over there.” His tone was joking, but his eyes stayed on Knuckles, sharp and observant beneath the humor. He knew his friend well enough to tell when something was genuinely bothering him. Knuckles wasn’t upset exactly, but there was definitely something turning over in his mind. Something that had his thoughts miles away from Amy’s party.
Knuckles exhaled slowly through his nose, his expression shifting into something more thoughtful. He glanced toward the other side of the room, where Amy and Cream were laughing over something near the snack table, then toward the hallway where voices drifted in and out. His gaze lingered there for a second too long before he looked back at Sonic. “Maybe I am thinking about something,” he admitted at last, lowering his voice slightly. “But if I tell you, you can’t go running your mouth to everyone else.”
That made Sonic laugh outright, the sound bright and easy. He placed one hand dramatically over his chest, feigning offense. “Wow. You wound me, Knux.” Then, with a playful flourish, he mimed zipping his lips shut and tossing away an invisible key. “You’ve got my word.” His grin softened after that, shifting from teasing to something more sincere. “Seriously. Whatever it is, it stays between us.”
Knuckles stared at him for a moment, as if weighing whether or not to believe him. Then, slowly, a small chuckle rumbled from his chest. “Alright,” he said, voice quieter now. The noise of the party seemed to blur into the background as he leaned a little closer, enough that his words wouldn’t carry to Tails or anyone nearby. Even Tails, sensing the sudden change in atmosphere, pretended very hard to be interested in the last bite of his dessert.
Sonic’s curiosity sparked instantly, bright and alive. Whatever this was, it clearly mattered enough for Knuckles to be cautious. He shifted closer too, lowering his voice in turn, eyes bright with anticipation. The couch suddenly felt like the center of some ridiculous secret meeting, and Sonic had to fight the urge to laugh at the sheer seriousness of it. Knuckles glanced once more around the room, as though making absolutely sure no one else was listening. Then he leaned in, his voice barely above a whisper.
“Tell me something,” Knuckles murmured. “Are Rouge and Shadow… like, a thing?”
For a moment, Sonic froze.
The question landed in his mind so abruptly that it seemed to still the entire room around him. The music that had once been a soft background hum suddenly felt distant, muffled beneath the rush of his own thoughts. His easy grin faltered, replaced by a blink of honest surprise as he turned his head in the direction Knuckles had subtly gestured. Across the room, near the television where a few of the others had gathered around some party game that had long since been abandoned in favor of conversation, stood Rouge and Shadow. Rouge had one arm draped lazily around Shadow’s shoulders, leaning into him with the kind of effortless confidence that always seemed to define her, while Shadow stood beside her with his usual composed stillness, crimson eyes half-lidded as if none of the noise around him could possibly matter.
Sonic’s gaze lingered there.
Rouge was, unsurprisingly, doing most of the talking. Her free hand moved animatedly as she spoke, fingers tracing elegant gestures through the air while she laughed at something she’d just said. The light from the room caught against the shine of her wings and the glint of the jewel at her chest, making her seem almost luminous in the warmth of Amy’s carefully decorated living room. Shadow, meanwhile, looked exactly as Shadow always did, reserved, unreadable, and somehow entirely detached from the cheerful chaos surrounding him. Yet he hadn’t moved away from Rouge’s arm. He hadn’t shrugged her off, hadn’t stepped aside, hadn’t even given the faintest sign of annoyance. If anything, he looked almost… comfortable.
That, more than anything, made Sonic pause.
He turned back toward Knuckles slowly, one brow lifting as he considered the question more seriously. “Honestly?” Sonic said, lowering his voice so only Knuckles could hear him. He glanced back toward the pair once more before continuing. “No. I really don’t think they’re a thing.” His tone was thoughtful now, stripped of the teasing humor from before. “I mean, yeah, they hang around each other a lot, but that doesn’t really mean anything.” He shrugged one shoulder, trying to sound casual, though something about the image of Rouge leaning so easily against Shadow had settled strangely in the back of his mind.
Knuckles tilted his head, clearly unconvinced.
Sonic leaned back into the couch, folding one arm across the backrest as he kept his voice low. “They’ve always been close,” he continued. “Rouge works with him all the time, and Shadow’s not exactly the type to let just anyone near him.” He gave a small, thoughtful hum, eyes flickering back toward the television area again. “But I don’t know… I’ve never really seen them do, y’know, couple stuff.” The words came out with a faint laugh, almost awkward in their simplicity. Sonic wasn’t exactly the first person anyone would go to for romantic analysis, and the thought of trying to define what “couple stuff” even meant made him almost want to laugh at himself.
Knuckles, however, only folded his arms tighter and leaned slightly closer, his expression turning serious in that blunt, straightforward way that was so uniquely him. “See, that’s exactly why I’m asking,” he said. “Rouge is always touchy with him.” His gaze shifted back across the room again, and Sonic followed it instinctively. “Like right now. She’s practically hanging off him.” His voice lowered further, almost conspiratorial. “And they’re always together. Missions, meetings, random check-ins. Every time we see one of them, the other’s usually somewhere close by.”
Sonic opened his mouth to respond, but Knuckles kept going.
“And you never know,” Knuckles said, shrugging one broad shoulder. “They could be in one of those private relationships. The kind where nobody really knows unless they want them to.” He glanced sideways at Sonic, brows raised as if presenting undeniable evidence. “Shadow seems like the type to keep something like that quiet.”
That, Sonic had to admit, was true.
His gaze drifted back toward the pair near the television. Rouge was laughing again, the sound light and smooth, while Shadow remained quiet beside her, his arms crossed now, though not in irritation. If anything, his posture looked almost… patient. Sonic watched as Rouge leaned closer to whisper something near Shadow’s ear, her smile widening into something sly and amused. Shadow’s expression shifted ever so slightly, not quite a smile, because Shadow almost never smiled, but something softer than his usual blank detachment.
Sonic’s chest tightened in a way he didn’t immediately understand.
He leaned forward slightly, elbows resting on his knees now, eyes narrowed in thought. “Huh,” he murmured under his breath.
Because now that Knuckles had said it out loud, Sonic could kind of see it.
Not in any obvious, movie-like way. There were no grand gestures, no hand-holding across the room, no stolen kisses in corners. But there was something there, wasn’t there? Something subtle. Familiarity. Ease. The kind of closeness that came from knowing someone deeply enough that silence between them didn’t need to be filled. Rouge had always been openly affectionate, true, but Shadow allowed it in a way that felt different from how he treated everyone else.
Sonic frowned slightly, more to himself than to Knuckles.
“I mean…” he began slowly, eyes still fixed on them. “I guess when you put it like that…” His voice trailed off as he watched Rouge’s fingers lightly tap against Shadow’s shoulder while she spoke. Shadow didn’t even glance at her hand. He just stayed where he was, listening.
Knuckles let out a knowing grunt. “Exactly.”
Sonic sat with that thought for a moment.
At first, his instinct had been to dismiss it. Rouge was touchy with everybody, and Shadow being around her often made sense considering how frequently they worked together. But now, seeing them through the lens of Knuckles’ suspicion, every little detail suddenly seemed sharper. The closeness. The way Rouge naturally gravitated toward Shadow in a crowded room. The fact that Shadow, who could be colder than winter itself when he wanted to be, never once seemed bothered by her presence.
It was strange.
Not bad strange. Just… unexpected.
Sonic had never really stopped to think about it before. Rouge and Shadow had simply always existed as Rouge and Shadow, a pair that often moved together whether on missions or during gatherings like this one. It had become such a normal part of life that he had stopped questioning it. But now that Knuckles had planted the idea in his mind, it was impossible not to notice.
Rouge laughed again, and this time Shadow actually said something in response.
Sonic couldn’t hear the words from where he sat, but he saw the way Rouge’s expression softened for a split second before she flashed that usual confident smile again. Something about that tiny moment made his thoughts stir uneasily.
“Maybe you’re onto something,” Sonic admitted at last.
Knuckles turned toward him with the satisfied expression of someone who had just won an argument before it truly began. “See?”
Sonic let out a short laugh, though it sounded more distracted than amused. “I’m not saying you’re definitely right,” he said quickly, holding up one hand. “I’m just saying…” His eyes drifted back across the room again, catching the way Rouge’s arm remained around Shadow like it belonged there. “I can kind of see what you mean.”
Sonic turned back toward Knuckles slowly, the corners of his mouth already beginning to lift into a grin.
For a second, he simply looked at him, letting the silence stretch just enough to make the other echidna shift uncomfortably in his seat. Knuckles had never exactly been subtle, but this? This whole whispered conversation, the suspicious glances across the room, the oddly specific concern about Rouge and Shadow’s relationship status, it was all beginning to click together in Sonic’s mind. The realization came like a spark catching fire, quick and bright, and suddenly Sonic had to bite back a laugh. This wasn’t really about Shadow at all, was it? It was about Rouge.
His grin widened.
“Okay,” Sonic said, drawing the word out as he leaned an elbow over the back of the couch, turning fully toward Knuckles now. His voice stayed low, but it carried a teasing edge that immediately made Knuckles narrow his eyes. “Why are you asking that?” Sonic’s expression was all playful curiosity, though there was a knowing glint in his green eyes now. “This isn’t just random party gossip, is it?” He tilted his head, quills shifting slightly with the motion. “Come on, Knux. What’s really going on in that big red head of yours?”
For the first time that evening, Knuckles looked genuinely caught off guard.
A faint flush crept across his face, subtle beneath the red of his fur but unmistakable all the same. His usual confidence faltered for a moment as he glanced away, suddenly finding the floor far more interesting than Sonic’s face. One large hand rubbed awkwardly at the back of his neck, and Sonic’s grin only grew brighter at the sight. Knuckles the Echidna, guardian of the Master Emerald, fearless in battle, stubborn to a fault, was embarrassed.
That alone was priceless.
Knuckles let out a rough exhale through his nose, shoulders tightening as though he were debating whether to say anything at all. “Don’t make a big deal out of it,” he muttered at last, voice lower than before. The words came out gruff, but there was something almost sheepish beneath them. He kept his eyes averted for another second before finally glancing back at Sonic. “I just…” He hesitated, visibly annoyed with himself for even having to admit it. “I kind of have a thing for her.”
Sonic stared at him.
Then he laughed.
Not cruelly, never that, but with the bright, open amusement of someone who had just been handed the exact answer he’d been expecting. The sound bubbled out of him warm and effortless, and it made Knuckles’ ears flatten slightly in immediate irritation.
“Oh my gosh,” Sonic said between quiet laughs, leaning back into the couch cushions as though the whole thing had just become ten times more entertaining. “Knuckles.” He shook his head, grin practically impossible to contain. “That’s what this is about?”
Knuckles crossed his arms tightly over his chest, looking every bit as defensive as Sonic had anticipated. “Don’t start.”
But Sonic was already too far gone.
He let out another laugh, softer this time, and nudged Knuckles lightly with his shoulder. “Buddy, that’s not a bad thing,” he said, still smiling. “Honestly, I kind of figured it had to be something like that.” His tone softened into something more genuinely encouraging, even if the teasing never fully left it. “So what’s the problem? If you like her, just ask her out.”
Knuckles blinked.
Sonic shrugged, as if the answer were the most obvious thing in the world. “Seriously. Just go for it.” His grin turned easy and confident again, the kind of confidence that always made it seem like every problem in the world could be solved by simply moving forward fast enough. “The worst thing she can do is say no.”
That sentence, however, had the opposite effect on Knuckles.
His entire expression tightened.
“No,” he said immediately, almost too quickly, and the firmness in his voice made Sonic pause. Knuckles shook his head, gaze dropping again as his usual certainty gave way to something more uncertain. “That’s exactly why I’m not asking.” His voice had lowered, roughened by a tension Sonic wasn’t used to hearing from him. “I don’t want her to say no.”
The confession hung in the space between them.
For all his stubbornness and strength, Knuckles suddenly looked far less like the unshakable guardian Sonic was used to seeing and more like someone quietly caught in his own doubts. There was vulnerability there, tucked beneath the crossed arms and guarded tone. Sonic’s grin softened slightly as he looked at him.
Knuckles exhaled slowly, eyes flicking once more toward Rouge across the room. “I just want to know if they’re together first,” he admitted. “Because if they are…” He trailed off, jaw tightening. “Then there’s no point.”
Sonic stared at him for a moment before another laugh slipped free, lighter this time and touched with disbelief.
“You are unbelievable,” he said, shaking his head with an amused smile. “So instead of just asking her how she feels, you’re over here building theories about her and Shadow like some kind of detective?” His voice was fondly exasperated now, and Tails, who had clearly been pretending not to listen this entire time, let out a muffled snicker from beside them.
Knuckles shot both of them a glare.
Sonic only laughed harder.
“Knux, that’s kind of stupid,” Sonic said, though his tone kept it playful enough not to sting. “You’re seriously gonna sit here and wait around until you’re one hundred percent sure there’s no chance she’s dating someone before even talking to her?” He leaned closer, lowering his voice with exaggerated seriousness. “That’s not exactly a winning strategy.”
Knuckles groaned softly under his breath, clearly not appreciating the logic.
Sonic’s expression softened again after a second, and he nudged him once more. “Still,” he said with a crooked grin, “good luck finding out, I guess.”
That should have been the end of it.
It should have been another amusing little conversation to laugh about later, another one of those quiet moments between friends tucked into the warmth of Amy’s party.
But Knuckles, apparently, had other ideas.
He shifted in his seat, suddenly looking more serious than before. His eyes moved toward Sonic with a look that made the hedgehog instinctively suspicious. Sonic knew that expression. It was the look Knuckles got right before saying something that was either absurd, reckless, or both.
Sonic narrowed his eyes slightly. “Why are you looking at me like that?”
Knuckles hesitated.
Then, in a voice low enough that only Sonic could hear, he said the one thing Sonic absolutely had not been expecting.
“You should ask them.”
Sonic nearly choked on his drink the moment Knuckles finished speaking.
The punch he had just taken a casual sip of suddenly felt like it had gone down the wrong pipe entirely, forcing him into a sharp, ungraceful cough that made him hunch forward on the couch. One hand immediately flew to his chest as if that could somehow fix the betrayal happening internally, while the other tightened around the plastic cup like it had personally offended him. A few sharp sputters escaped before he finally managed to swallow properly, though his eyes were now wide and watering slightly from the surprise. When he turned toward Knuckles, it was with the kind of stunned disbelief usually reserved for impossible situations or bad jokes that went too far. For a second, all Sonic could do was stare, blinking through the last remnants of his coughing fit. There was no way Knuckles was serious.
“You have got to be kidding me,” Sonic finally said, his voice landing somewhere between a laugh and pure disbelief.
Knuckles, however, did not laugh. He did not grin. He didn’t even shift uncomfortably the way someone might when joking too far. Instead, he sat there with his arms crossed firmly over his chest, posture locked in that stubborn, immovable way Sonic knew far too well. His expression was serious, completely, annoyingly serious, as though he had just made a perfectly reasonable request instead of something that sounded like social sabotage. The contrast between Knuckles’ calm certainty and Sonic’s growing disbelief only made the situation feel more surreal. Sonic waited a moment longer, expecting the punchline, the smirk, anything that would confirm this was all a setup.
It never came.
Slowly, Sonic leaned back into the couch cushions, eyes narrowing as reality settled in.
“Oh wow,” he said at last, dragging the words out as if he needed time to accept them. “You’re serious.”
Knuckles gave a single nod.
That was it.
No explanation. No backing out.
Sonic let out a short, disbelieving laugh and shook his head so hard his quills shifted slightly with the motion. “No,” he said immediately, raising a hand as if physically blocking the idea from existing in the space between them. “Absolutely not. Are you crazy?”
“I’m not crazy,” Knuckles replied flatly.
“That’s exactly what someone doing something crazy would say,” Sonic shot back without hesitation, leaning forward now as the shock gave way to incredulous energy. He gestured toward Knuckles with his free hand, eyes still wide. “You seriously want me to walk over there and ask Shadow and Rouge if they’re together? In the middle of Amy’s party?” He let out another laugh, sharper this time. “Do you hear yourself right now?”
Knuckles frowned, clearly not appreciating the reaction. “I can’t do it,” he said simply, as if that explained everything.
Sonic blinked at him.
“You can’t,” Sonic repeated slowly, pointing at him. “So your solution is me? That’s your plan?”
Knuckles nodded once, like it was obvious.
Sonic leaned back again, exhaling through his nose. “Yeah, no. That’s not how this works.”
The party around them continued as if nothing strange was happening. Music played softly in the background, conversations mixed together in an easy, chaotic hum, and Amy’s decorations made everything feel brighter than usual. But right here on the couch, Sonic felt like he had been dropped into a completely different universe where Knuckles was making terrible decisions and expecting him to participate. Across the room, he could see Rouge laughing at something Shadow said. The sight alone made Sonic’s instincts scream that whatever Knuckles was suggesting was a very bad idea.
“Why don’t you go ask?” Sonic said finally, raising an eyebrow at Knuckles.
Knuckles’ answer came immediately.
“No.”
Sonic stared.
Then blinked.
Then stared again. “No?”
Knuckles’ jaw tightened. “I’m not about to embarrass myself.”
That made Sonic laugh outright, louder this time, earning a brief glance from Tails across the room. Sonic quickly lowered his voice again, still grinning in disbelief as he leaned forward. “Oh, so you’re trying to outsource embarrassment? That’s what this is?”
“It’s not like that,” Knuckles muttered.
“It kind of is exactly like that,” Sonic replied, gesturing vaguely between them. “You want me to walk into the most emotionally complicated conversation of the night like it’s no big deal while you sit here safe on the couch?”
Knuckles shifted slightly, frustration creeping in. “You’re good at talking to people.”
Sonic narrowed his eyes. “You are dangerously close to trying to compliment me into doing something stupid.”
“It’s not stupid,” Knuckles insisted.
“It is absolutely stupid,” Sonic shot back instantly.
For a moment, Knuckles looked like he might argue again, but instead he leaned forward slightly, lowering his voice. “Come on, Sonic. Just make it sound casual.”
That made Sonic actually pause.
Then he laughed again, but this time it was more exasperated than amused. “Casual?” he repeated, pointing toward the far side of the room. “There is no version of me walking up to Shadow the Hedgehog and casually asking about his love life that doesn’t end in disaster.”
Knuckles frowned deeper now. “You’re overthinking it.”
“No,” Sonic said firmly, leaning closer so only Knuckles could hear him. “I am correctly thinking it.”
He gestured again toward Shadow, who was still standing near Rouge, calm and unreadable as ever. “Think about it,” Sonic continued, lowering his voice even more. “I walk over there, I ask that question, and suddenly I look like I’m either trying to start drama or I care way too much about their relationship.”
Knuckles opened his mouth.
Sonic didn’t let him interrupt. “Which leads to problem number one,” he said, holding up a finger. “Rouge thinks I’m involved somehow.” A second finger rose. “Problem number two, Shadow immediately goes silent and stares at me like I just insulted his entire existence.” He paused, then added a third finger. “And problem number three, I become the center of attention at Amy’s party for all the wrong reasons.”
Knuckles hesitated slightly at that.
Sonic leaned back with a satisfied nod. “Exactly.”
Knuckles exhaled through his nose, clearly frustrated now. “Then ask Shadow instead.”
The room seemed to pause in Sonic’s mind.
He slowly turned to look at Knuckles.
“You want me to do what?”
“Ask Shadow,” Knuckles repeated.
Sonic stared at him for a long moment, expression going completely flat.
Then he shook his head.
“No.”
The response was immediate, sharp, and final.
Knuckles frowned. “Why not?”
Sonic gestured vaguely at himself. “Knuckles. I barely talk to Shadow unless we’re arguing or saving the world.” He leaned forward slightly, lowering his voice again. “And you want me to just walk up to him at a party and ask about his relationship status like that’s normal behavior?”
Knuckles didn’t respond right away.
Sonic continued anyway, ticking off another point. “Also, it’s Shadow.”
That alone seemed to carry enough weight that Knuckles paused.
Because it was Shadow.
The kind of person who didn’t do casual. Who didn’t do easy conversations. Who didn’t react in predictable ways. Sonic and Shadow had a complicated rhythm of rivalry and reluctant teamwork, not friendly party chats about personal feelings. The idea of approaching him with something so invasive felt like walking directly into a trap without knowing where it was set. Sonic could already imagine the silence, the stare, the inevitable awkward tension that would follow him for the rest of the night.
“Yeah,” Sonic muttered, leaning back again and rubbing a hand over his face. “That’s not happening.”
Knuckles looked away slightly, jaw tight, clearly still thinking.
Sonic noticed the way his eyes flicked toward Rouge again, then back to Shadow, like he was still hoping for a different outcome. But Sonic just shook his head again, more firmly this time, crossing his arms over his chest.
“No way,” he said again.
Knuckles sighed, shoulders dropping slightly, though the stubbornness in his expression didn’t fully disappear.
And Sonic stayed where he was, very deliberately not getting involved, very deliberately refusing to be the messenger in whatever ridiculous theory Knuckles had decided to chase tonight.
Sonic noticed the shift in Knuckles immediately, and a short, knowing laugh slipped out of him before he even thought about it. He leaned back into the couch cushions with an easy grin, already anticipating trouble. “Oh no,” he said, amusement dancing in his voice as he tilted his head. “That face means you’re about to say something dumb again.”
Knuckles didn’t react to the teasing. Instead, he turned more fully toward Sonic, arms crossing tightly over his chest as if he were preparing for something important. His expression had shifted into that stubborn, determined look that meant he wasn’t backing down no matter what. “What if I make you a deal?” he asked, tone serious enough that it almost clashed with the party atmosphere.
That was all it took for Sonic to lose it. He burst into laughter, the kind that came straight from disbelief, shoulders shaking as he leaned forward and nearly spilled himself off the couch. A few heads turned, Amy glanced over, curious, and even Tails peeked up, but Sonic just waved a hand as if to dismiss the entire scene. “You are so unbelievable,” he managed between laughs, one hand pressed to his chest. “I’m getting bribed into this now?”
Knuckles remained completely unamused. “I’m serious,” he said flatly, as if that alone should settle the matter. That only made Sonic laugh harder, the sound echoing a little too loudly through the room. When it finally began to fade, Sonic wiped at the corner of his eye and gave Knuckles a long, incredulous stare. “Do you hear yourself right now?” he asked. “Are you going to bribe me into hanging out with Shadow so you can spy on whether he and Rouge are together.”
“Yes,” Knuckles replied without hesitation.
Sonic’s expression slowly shifted from amusement to exhausted disbelief. He leaned forward, elbows on his knees, studying Knuckles like he was trying to find a trace of irony that simply wasn’t there. When none appeared, he sighed heavily. “No,” he said firmly. “Absolutely not. And you should just talk to Rouge yourself instead of dragging me into whatever… weird investigation this is supposed to be.”
Knuckles frowned, clearly unimpressed with that suggestion. “I’m not doing that until I know,” he insisted, as though that explained everything. Sonic let out another long sigh and rubbed a hand down his face. This was exactly the kind of logic that made conversations with Knuckles exhausting, absolute certainty with no room for flexibility.
Sonic sat up a little straighter, trying a different angle. “Even if I wanted to, which I don’t, there needs to be a reason for me to suddenly start hanging out with Shadow,” he said, spreading his hands. “I can’t just walk up to him and go, ‘Hey, let’s be best buddies for investigative purposes.’ That’s not normal.”
Knuckles was quiet for a moment, thinking. Then, as if he’d solved a complex equation, he said, “I’ll give you money for some new shoes.”
The room seemed to pause with Sonic.
“…What?” he said slowly, blinking.
Knuckles nodded once, completely confident. “Your birthday’s coming up.”
Sonic stared at him for a long moment, then his gaze drifted downward despite himself. His shoes were in rough shape, scuffed red fabric, faded white stripes, soles worn thin from constant running. He’d been ignoring it for weeks, but now that Knuckles had pointed it out without meaning to, it was impossible not to notice. He shifted slightly, suddenly very aware of just how far gone they really were.
Knuckles, seeing the hesitation, pressed his advantage. “$100, so you can buy yourself a good pair,” he added. “Not cheap ones.”
Sonic let out a slow, defeated breath. This was exactly how it happened, he realized, this was how reasonable people ended up agreeing to completely unreasonable plans. He leaned back again, staring up at the ceiling as if it might offer a better alternative. It didn’t. Around them, the party kept going, completely unaware that a very questionable negotiation was unfolding on the couch.
Eventually, Sonic dropped his gaze back toward Shadow across the room. The other hedgehog stood near the television, calm and unreadable as always, listening to Rouge speak with casual ease. Even from a distance, there was something effortlessly composed about him, something that made “just hanging out” sound far more complicated than it should have been.
Sonic exhaled through his nose, resigned. “I cannot believe I’m even considering this,” he muttered.
Knuckles didn’t respond, wisely letting the silence do the work.
After another long pause, Sonic pointed at him. “How long do I have to do this?”
“Until you get enough information,” Knuckles said immediately.
“That is not a time frame,” Sonic replied flatly.
Knuckles only shrugged, completely unconcerned.
Sonic groaned, tipping his head back against the couch again. For a moment, he just stared at the ceiling, as if hoping it might reset the situation. It didn’t. When he finally sat up again, his expression had settled into reluctant acceptance.
“Fine,” he said at last. “I’ll do it.”
Knuckles’ posture loosened instantly, a flicker of satisfaction crossing his face. Sonic immediately raised a finger. “But this is the dumbest thing I’ve ever agreed to.”
“You say that a lot,” Knuckles replied.
“Because you keep giving me reasons to,” Sonic shot back.
He leaned forward again, elbows resting on his knees, eyes drifting across the room toward Shadow. For a long moment, he simply watched him. The party continued around them, Amy laughing near the kitchen, Tails now pretending very hard not to eavesdrop, music still humming softly in the background, but Sonic’s focus had narrowed.
How hard could it really be?
Shadow wasn’t impossible to talk to. Okay, maybe he was a little impossible. But still. Sonic and Shadow had spent enough time around each other on missions and in battle. Surely hanging out couldn’t be that different.
Right?
His gaze lingered there, studying the other hedgehog from across the room. Shadow’s posture remained calm and composed, every inch of him radiating that familiar closed-off stillness. Rouge said something that made him tilt his head slightly in response, and even from here Sonic could tell the conversation between them was far easier than anything he imagined having with Shadow himself.
A knot of uncertainty twisted quietly in his chest.
Still. Money for new shoes.
Sonic looked down at his current pair again and sighed.
Yeah. He was definitely being bribed.
And somehow, against all better judgment, he had agreed.