Running on Impulse
by RileyCat

The warm glow of the morning sunlight spilled through the window of Tails’s workshop, casting soft beams over scattered tools and half-finished inventions. In his bedroom, the young fox groaned softly, stirring awake with an odd mix of warmth and tension clinging to him.

As he sat up to stretch, he froze. The blanket wrapped around him was damp, sticking to his fur in an unmistakable way. His eyes widened, his cheeks flushing crimson as he looked down. Beneath the blanket, his arousal stood prominently, sticky with a strange fluid. The mess extended to the sheets beneath him, and Tails buried his face in his hands, mortified.

“Not again…” he whispered, stealing a glance at the rumpled blanket. The memory of his dream lingered, vivid and unwelcome. He and Sonic had been running through Green Hill, but somewhere along the way, Sonic’s teasing grin had softened into something… different. Something that made Tails’s chest tighten.

“This is so weird,” he muttered, pushing the blanket aside and standing up quickly. His heart pounded as he shuffled toward the bathroom, the uncomfortable ache between his legs a constant reminder of his predicament.
What’s wrong with me? he thought, setting the damp sheets aside. This is the third time this week…

Stepping into the shower, Tails twisted the knob all the way to cold. He knew from the last two times this had happened that the icy water would help—at least temporarily. The spray hit his fur, drawing a sharp yelp as his body jerked in response. Shivering, he leaned against the wall, letting the chill seep into him, hoping it would wash away more than just the physical tension. Slowly, the ache subsided, leaving behind only the confusion swirling in his mind.

Why Sonic? He admired his best friend—looked up to him, even. But this? This was different. Scary. “No way,” he said aloud, shaking his head as if to banish the thought. “It’s just a stupid dream. It doesn’t mean anything.”

After scrubbing himself clean, Tails turned off the water and stepped out, grabbing a towel. He dried off quickly, his fur fluffing up from the brisk motion. Slipping on his signature gloves and adjusting his red and white shoes, he glanced out the window. Beyond the rolling green hills, Sonic was probably already waiting for him.

Today was supposed to be fun. A run through Green Hill, maybe a bit of friendly competition. Focus on that, Tails told himself. With a deep breath, he stepped out of his workshop, determined to shake off the morning’s awkward start.

-Some Time Later-

The sun hung high in the clear blue sky as Tails arrived at their usual meeting spot in Green Hill Zone. The soft rustle of grass and the rhythmic sound of running water from a nearby stream did little to calm the fluttering nerves in his chest. His twin tails flicked behind him as he spotted Sonic up ahead, already in the middle of his stretching routine. Tails rushed to catch up.

"Hey, there you are!" Sonic called out, pausing mid-stretch to wave. "You okay, little buddy? You’ve been running late the past couple of days. Working on a new gadget or something?"

Tails flinched, his ears drooping slightly. “Oh, uh... yeah! That’s it!” he stammered, rubbing the back of his head sheepishly. “Been caught up with some… tricky calibrations on the Tornado.”

Sonic raised an eyebrow but didn’t press. “Well, no worries,” he said with a grin, finishing his stretch with a dramatic lean and a yawn. “You’re here now, and that’s what counts. Ready to go?”

Tails nodded quickly, the faint blush still lingering on his cheeks. "Y-Yeah, ready!" Despite the awkward morning, he wasn’t going to let it ruin their run.

The two lined up side by side, excitement buzzing in the air. Sonic crouched into a runner’s stance, a grin spreading across his face. “Alright, let’s do this!” With that, he shot off, a blur of blue speeding ahead. Tails followed close behind, his tails spinning to give him a boost as he hovered beside his best friend.

What followed was a blur of motion and color. The two zipped across the vibrant landscape, weaving through fields and leaping over cliffs. Tails flew high to lift Sonic over a steep drop, the hedgehog giving him a quick thumbs-up before landing with a roll and continuing on. They dodged falling boulders, looped through twisting corkscrews, and dismantled a few stray Badniks along the way—everything effortless and in sync.

The wind ruffled Tails’s fur, and the sheer joy of running alongside Sonic made him forget the awkwardness of the morning… almost.

Eventually, the two reached a long, open stretch of land, the rolling hills bathed in golden sunlight. Tails and Sonic were side by side, racing through the lush landscape. Tails’s tails spun rhythmically behind him, while Sonic’s legs moved so fast they blurred. But soon enough, Sonic began to pull ahead, his effortless speed creating a widening gap between them.

Tails pushed harder to keep up, but his attention kept drifting. His eyes followed the way Sonic’s quills were pushed back in the wind, admiring his toned frame that moved fluidly with each stride. And then, despite his best efforts to look away, Tails couldn’t help but glance down to Sonic’s rear, feeling a sudden surge of warmth flood through him.

The memory of his dream from earlier that morning hit him like a wave. He and Sonic had been running, but then something shifted. Sonic had stopped, turned to face him, and pulled him into a deep kiss. Their tongues had entwined, and the heat between them grew unbearable. Tails could still feel the sensation of Sonic’s hand trailing down his chest, lower and lower… until the feeling of his own body reacting jolted him back to the present.

Tails gasped, his breath quickening as his cheeks flushed bright red. "N-No," he whispered to himself, trying to push the vivid image from his mind, but it clung to him, leaving him helpless.

The same warm, aching sensation returned, his erection pressing firmly against him, slick with pre-cum, making it impossible to ignore.

"Not now," Tails muttered, panicking, his pace slowing. "Why is this happening again?"

Unable to focus, he came to a complete stop, his breath shaky as he glanced down at himself, mortified. His erection stood tall, slick with pre, a bead dripping downward and staining the ground beneath him.

On instinct, Tails hesitantly reached toward it, his glove brushing against the sensitive flesh. The moment he touched it, a sharp jolt of pleasure shot through him. He gasped, jerking his hand back as though burned. "Ah!" he yelped, his body trembling. More pre leaked out, dripping onto the ground in front of him.

"Why is it so… sensitive?" he whispered, panic rising as his mind struggled to comprehend what was happening.
His tails curled forward, trying to shield his lower half as best they could. "Please, go away. Please, go away…" he muttered desperately, his voice shaky. But the thought of his dream, of Sonic’s touch, kept invading his mind.

"Nooo… stupid brain…" he groaned, clutching his tails tighter as his hands trembled.

Up ahead, Sonic continued running, blissfully unaware that his companion had stopped. It wasn’t until the familiar sound of Tails’s propelling whir faded that he realized something was off. Slowing to a halt, Sonic turned back, scanning the landscape. “Tails?” he called, spotting the fox standing awkwardly a ways behind.

Tails’s heart sank as he heard Sonic’s voice, his body freezing in panic. His hands trembled as he tried to shield himself with his tails. Oh no, no, no. He’s coming back... Tails whispered to himself, the heat rising in his face.

Sonic jogged up to Tails, brow furrowed with concern. The fox’s back was turned, his tails tightly curled around his lower half.

"Hey, buddy," Sonic said gently. "What’s going on? Are you hurt?"

Tails flinched at the sound of his voice, his shoulders stiffening. He shook his head quickly, not turning around. “N-No, I’m fine!” he squeaked, but the tremor in his voice gave him away.

“Uh-huh,” Sonic replied, crossing his arms skeptically. “Tails, c’mon, you’re not fooling anyone. You’ve been acting strange all week. What happened? Did you trip or something?”

“I-I’m fine!” Tails repeated, glancing over his shoulder, his voice cracking slightly. His hands clutched his tails tighter as if they were his only defense.

Sonic circled around to face him, crouching down to catch his gaze, but Tails wouldn’t look up. “Tails,” he said softly, his voice serious. “You know you can tell me anything, right? I’m not gonna be mad, and I’m not gonna make fun of you. I just want to make sure you’re okay.”

Tails hesitated, his eyes welling with tears. "Y-You promise you won’t be mad?" he asked quietly.

Sonic offered a reassuring smile. “Cross my heart. Now, what’s up?”

Taking a shaky breath, Tails slowly unfurled his tails, revealing his predicament. His erection stood stiff, slick with pre, the tip glistening. His blush deepened as he averted his gaze, shame written across his face.

"This… this keeps happening," Tails whispered, his voice trembling. “For the past week. A-And I don’t know why…” His voice faltered. "I’ve been having these weird dreams. About… you."

Sonic’s eyes widened, caught completely off guard. “M-Me?”

Tails nodded miserably, unable to look Sonic in the eye. “I don’t get it, Sonic. I can’t stop thinking about it, and… and every time, it’s like this!” He motioned at himself, his face burning. “What’s wrong with me?!”

For a moment, Sonic didn’t know how to respond. His thoughts raced. Dreams about me? he thought, a strange mix of surprise and discomfort filling him. But then realization hit.

Puberty, he thought, the initial shock giving way to understanding. He’s going through puberty. Poor guy doesn’t even know what’s happening to him.

Sonic glanced at Tails again, his heart softening as he took in the sight of the young fox. Man, he’s really growing up… The thought hit him unexpectedly, reminding him of how much Tails had changed over the years. Sonic couldn’t help but recall when Tails was younger, when his body was still developing. He remembered how small Tails’s orbs had been, delicate and almost childlike. Now, seeing him like this, Sonic realized just how much Tails had matured.

Sonic’s gaze flicked downward, momentarily lingering on the obvious sign of Tails’s growing body, and he swallowed hard. I’m not sure if I’m the right one to be explaining this to him, he thought, his mind clouded with uncertainty. But he needs help... and if I don’t explain it, who will?

Sonic sighed, his expression softening further. He really trusts me, he thought, his heart aching as he reached out, placing a hand on Tails’s shoulder. “Hey,” he said gently. “It’s okay. What you’re going through? It’s totally normal. You’re growing up, bud.”

Tails sniffled, tears brimming in his eyes. "I just want it to go away!" he cried, his voice cracking. "But it keeps coming back! What does it mean, Sonic? I’ve checked all the books I had, but they don’t say anything about this!"

Sonic’s heart clenched as he saw his little buddy so distraught. “It’s alright,” he said, kneeling so they were eye level. “This happens to everyone. Even me, believe it or not.”

Tails blinked, still shaky. “E-Even you?”

Sonic chuckled lightly, trying to keep the mood light. “Yep. Happens to the best of us. It’s nothing to be ashamed of.”

Tails hesitated, his desperation clear. “How do you get rid of it?”

That question hit Sonic like a brick. His smile faltered, and a faint blush crept onto his cheeks. "Uh..." he rubbed the back of his neck awkwardly. Seeing Tails’s pleading expression made the weight of the situation settle heavily on him. “I just… well, I rub it until it goes away.”

Tails blinked, still confused. “Wh-what do you mean?” he asked.

Sonic realized just how much Tails didn’t know. Poor guy’s clueless, he thought. He glanced at Tails’s body and the way his erection stood out, glistening with pre, and swallowed hard. That’s... definitely not something I expected to see today.

He cleared his throat, trying to stay focused. Still, he does need help…

"Alright," Sonic said softly, his voice steady but kind. "I’ll show you how to deal with it when it happens."

Sonic shifted his position, sitting cross-legged on the soft grass. He patted the ground in front of him, motioning for Tails to sit.

Tails hesitated for a moment, his ears twitching nervously, before lowering himself to the ground. He gasped softly as his sensitive erection throbbed with each movement, a bead of clear fluid dripping from the tip. His hands instinctively moved to cover himself, but Sonic shook his head gently. “It’s okay, Tails. Nothing to be embarrassed about. Just sit tight.”

Blushing furiously, Tails settled into place, his eyes darting between Sonic and his own predicament. Sonic rubbed the back of his neck, his own cheeks faintly pink as he spoke. “So, uh… when this happens to me,” he began, hesitating for a moment, “I rub it until it goes away. Here, I’ll show you what I mean.”

Tails’s ears perked up, his determination to fix the issue momentarily overriding his embarrassment. He watched as Sonic adjusted his position, his expression focused. With a deep breath, Sonic allowed himself to relax, his shaft gradually emerging. Tails’s eyes widened at the sight. Sonic’s erection was noticeably larger than his own, with a smooth, tapered shape.

“Y-Yours is different,” Tails murmured, tilting his head in curiosity.

Sonic chuckled lightly, the tension easing a bit. “Yeah, different species, different… uh, equipment. See how mine’s smooth and kind of tapered at the end?” He gestured lightly to his shaft, its pink hue distinct under the sunlight. “Yours has a knot at the base—that round part—and is more reddish.”

Tails glanced down, comparing the two. “Oh… I see,” he said softly, his blush deepening as his curiosity grew.

“It’s nothing weird,” Sonic assured him. “Just how our bodies are built.” With that, he tugged off one of his gloves, tossed it aside, and leaned back. “Alright, here’s what I do.”

Sonic gripped his length confidently, his hand moving in a steady rhythm. His breaths hitched slightly, his cheeks flushing deeper, but he kept his composure. Inside, though, his thoughts raced. I can’t believe I’m jerking off in front of Tails… he thought, the absurdity of the situation hitting him like a wave. This is so weird… but it’s for him. He needs to understand.

“It’s just about finding a rhythm that works,” he explained aloud, glancing at Tails, who watched with wide, fascinated eyes.

Encouraged, Tails mimicked the motion, wrapping his smaller hand around his own length. But as he began to move, a sharp whimper escaped him, and he quickly stopped. “Gah! I-I think I’m doing it wrong,” he admitted, frustration creeping into his voice.

Sonic paused, his gaze thoughtful. “Hmm… looks like you’re gripping it too hard,” he said gently. “Try loosening up a bit.”

Tails nodded, adjusting his grip. His movements were hesitant, and Sonic could see his unease. After a moment’s hesitation, Sonic scooted closer, his tone steady. “Here, let me help you.”

Sonic reached for Tails’s hand—now bare, as Tails had removed his gloves earlier—and adjusted it gently. “Like this. Looser, but firm enough to feel good.” His touch guided Tails, helping him find a rhythm that didn’t hurt or overwhelm him.

Tails whimpered softly, his body trembling at the unfamiliar sensations. The clear fluid leaking from his tip streaked his shaft and coated Sonic’s fingers, making his movements smoother. The young fox’s breaths grew heavier, his nervousness mingling with the strange pleasure coursing through him.

Eventually, Sonic pulled back, sitting on his knees as he watched Tails continue on his own. The sight was both awkward and endearing—Tails’s brows furrowed in concentration, his movements still uncertain. Soft, breathy sounds escaped him, unintentional and innocent, as his body responded.

“I-It’s not working,” Tails finally said, his voice a mix of disappointment and embarrassment. His ears drooped, and his strokes slowed to a stop. “I keep trying, but it just won’t go away.”

Sonic exhaled, running a hand through his quills. Sheesh, he thought. He’s really impatient… If this didn’t work, I don’t know what will… He hesitated, exhaling deeply as he ran a hand through his quills. His gaze flicked to Tails, who looked up at him with wide, trusting eyes. Unless…

Sonic swallowed hard, a faint blush creeping up his cheeks. N-no, I can’t. He’s too young… His thoughts warred with his instincts, the tension in his chest growing. But he needs help… and he was dreaming about me, after all. Maybe I am what he needs.

Sonic stopped stroking himself, his hands resting on his knees as he cleared his throat. “Well, uh… there’s another way,” he began cautiously, his voice tinged with uncertainty. “But it’s a bit more… personal.”

Tails’s ears perked up, his expression shifting to one of determination. “Tell me!” he said, his tone earnest and a little desperate. “I’ll do anything.”

Sonic blinked, caught off guard by the conviction in Tails’s voice. Well, guess that’s all the confirmation I need… Sonic thought, his resolve hardening.

He gave Tails a reassuring smile. “Maybe my touch would work better. Let me give it a try.”

Sonic reached out again, his gloveless hand wrapping gently around Tails’s length. The fox tensed immediately, a sharp breath escaping him as the sensation overwhelmed him. Sonic’s hand moved slowly, his fingers curling around the smaller member, feeling the warmth and slickness of Tails’s skin as the pre-cum leaked steadily from the tip. A shaky, high-pitched moan slipped from Tails’s lips, his ears flattening, face flushed with a mix of embarrassment and pleasure.

Man, Sonic thought, his eyes flicking downward, Tails really is growing up. His gaze traveled down, taking in every detail of his little buddy’s anatomy. That color... so red and flushed compared to mine. And the knot—well, I guess that’s just a fox thing. I don’t have anything like that. It’s so swollen already… poor guy must be sensitive as hell.

He gave a light squeeze at the base, marveling at how firm it felt beneath his fingers. The sensation was both strange and thrilling, a sense of responsibility mixed with the growing arousal in his own body. Guess puberty’s kicking in for real… he thought, the scent in the air unmistakable now—mild but distinct. It’s like a reflection of everything I went through when I was younger… except now it’s him.

As Sonic continued, more pre oozed from Tails’s tip, slicking the shaft, dripping down onto his fingers. The warmth of it caught Sonic’s attention, and he couldn’t help but notice the sticky texture that clung to his skin. Damn, he thought, this kid’s really pent up. No wonder he’s frustrated. The fluid was almost like a faucet, constantly leaking out, and Sonic wondered just how much Tails had been holding in.

Tails’s soft moans grew louder, each shaky grunt following the rhythm of Sonic’s hand. His hips bucked slightly against Sonic’s touch, and his small body quivered, the overwhelming sensations clearly difficult for him to manage. “S-Sonic…” Tails murmured, his voice trembling, and his face grew even redder. The sight of his little buddy, so vulnerable and desperate, made Sonic’s heart clench. He wanted to help, more than anything.

I wonder... how it tastes. Sonic’s thoughts flashed quickly, but he quickly pushed them aside, focusing back on Tails. The fox’s eyes were squeezed shut, his breath coming in ragged gasps, cheeks flushed. The trust in Tails’s expression was palpable, and it made Sonic pause for a brief moment.

“Hey,” Sonic said smoothly, his voice breaking the tension. “I’m gonna try something. It’ll feel good, I promise.”

Tails’s eyes fluttered open, his gaze hesitant but filled with trust. He nodded slowly. “O-Okay,” he whispered, his voice soft but steady despite the embarrassment he was feeling.

Sonic took a deep breath, leaning closer as his grip on Tails’s length shifted. He hesitated for only a moment before bringing the fox’s knotty member to his lips, leaning forward and taking it into his mouth. The sensation earned a sharp gasp from Tails, and his breath hitched as Sonic’s tongue swirled and teased him.

"S-Sonic…" Tails stammered between breaths, his voice trembling with a mixture of embarrassment and the overwhelming sensations flooding his body. Sonic’s movements were slow and deliberate, his lips sealing tightly around Tails’s erection as he bobbed his head up and down, creating a steady rhythm.

The taste hit Sonic’s tongue—savory, slightly salty, and uniquely intoxicating. Man… didn’t think he’d taste this good, Sonic thought, surprised by his own reaction. He couldn’t help but notice how Tails’s pre-cum coated his tongue, making every glide smoother and every motion more fluid. Sonic’s mind wandered as he continued, taking in every detail—the pinkish-red hue of Tails’s shaft, the way it throbbed eagerly under his touch, and the light musk that clung to it.

Fuck, this is so hot… Sonic admitted to himself, feeling his body heat up. I can’t believe this is happening… His arousal grew with each movement, and a heated blush spread across his face. Tails’s moans, the way his body responded to Sonic’s touch, it was all too much. I’m so turned on right now… I need more.

Sonic’s own arousal grew stronger, but the thought lingered: Am I too big for him? He glanced down at Tails’s trembling body, the fox’s moans growing louder, his legs twitching in rhythm with Sonic’s movements.

Finally, with a soft, wet pop, Sonic lifted his head, letting Tails’s length slip free from his mouth. A thin strand of saliva connected his lips to Tails’s tip, breaking as Sonic sat back and licked his lips, savoring the taste. Tails blinked at him, his body trembling slightly, his face flushed.

"W-why’d you stop, Sonic?" Tails asked, his voice tinged with confusion and desperation, his eyes wide and pleading.

Sonic locked eyes with him, a mix of mischief and something deeper flickering in his gaze. Lust, and… a sense of responsibility. "Relax, bud," Sonic said, his voice playful but filled with intent. "I just thought of a quicker way to take care of your little… issue. But I’ll need to do a bit of prep first."

Tails hesitated, his ears flicking nervously. "P-prep?" he stammered, the tension building in his chest. His uncertainty was palpable, but he trusted Sonic completely. He nodded, taking a shaky breath as Sonic moved closer, his hands gripping Tails’s hips gently but firmly.

"Whoa, wh-what are you—?" Tails’s voice rose in alarm as Sonic lifted his hips slightly, pushing his tails aside at their base to reveal the small, pink entrance beneath. Sonic’s grin widened, his tone soft yet confident.

"Relax, buddy," Sonic whispered, his voice low and soothing. "This’ll probably feel weird at first, but trust me—you’re gonna love it."

Tails whimpered, his ears flattening slightly. The nervousness in his expression began to fade as he saw the confidence in Sonic’s eyes. "O-okay," he murmured, his voice still hesitant but filled with trust.

Sonic leaned in without hesitation, letting his tongue dart out to trail over the sensitive rim of Tails’s entrance. The fox gasped sharply, his whole body tensing at the unexpected sensation. Ah! S-Sonic! he yelped, his voice cracking as shock shot through him like an electric current. But soon after, pleasure began to replace the initial shock, and Tails moaned, his body trembling under the unexpected wave of sensation.

Sonic chuckled softly against him, the vibrations adding to Tails’s growing pleasure. “Told ya, bud,” he murmured before continuing, his tongue moving in slow, deliberate circles. Each motion coaxed the tight ring of muscle to relax under his touch. Gradually, Sonic’s tongue began to press a little more insistently, teasing the edge before pushing past the resistance.

Tails’s breath hitched as he felt the hedgehog’s tongue slide inside, the wet warmth sending a wave of sensation that made his toes curl. "O-ohhh…" he moaned softly, his body trembling as Sonic skillfully worked, his hands keeping Tails steady. The fox’s moans grew more frequent, his body responding instinctively to the unfamiliar but intoxicating pleasure.

Sonic took his time, his tongue moving carefully but thoroughly as he loosened Tails up, ensuring the fox was relaxed and ready for what would come next.

Tails’s small body quivered with each careful swirl and push of Sonic’s tongue, his soft moans growing louder as his breath hitched with every new sensation. His hands instinctively gripped the ground beneath him, the pleasure overwhelming his mind. He could barely focus on anything other than the throbbing in his neglected member, which continued to leak steadily, leaving a glistening pool of pre beneath him.

Sonic, engrossed in the task, marveled at the sweetness he tasted, a flavor both innocent and intoxicating. Each reaction from Tails spurred him on, savoring every trembling movement as he continued to rim the young fox’s puckered tailhole.

When Sonic finally pulled back, Tails let out a soft whimper, his hips twitching slightly as if his body was begging for more. The fox lay there, dazed, his flushed face and heaving chest betraying how deeply he’d been affected. Sonic took a moment to admire the sight, spitting into his palm before gripping his own larger, slickened length. His shaft throbbed in his hand, the smooth pinkish skin glistening in the light, a stark contrast to Tails’s own smaller, knotted red arousal.

The sight brought Tails out of his daze, and his wide blue eyes snapped down to Sonic’s imposing member. He blinked in disbelief, the size difference sending a nervous tremor through him as he realized what Sonic was planning. “W-Wait… will that even fit?” he stammered, his ears folding back as his voice cracked slightly.

Sonic chuckled softly, though there was warmth in his tone, a genuine effort to reassure. “Don’t worry, little buddy. I’ll take it slow,” he said, his voice low and soothing. “It might feel a little strange at first—maybe even hurt a little—but trust me, once you get used to it, it’ll feel amazing. You just have to relax.”

Tails hesitated, his cheeks burning brighter as he shifted his legs slightly. He looked up at Sonic, his gaze filled with trust despite the lingering nerves. “O-Okay… I trust you, Sonic…” he murmured, his voice barely above a whisper.

Sonic smiled, his expression softening at Tails’s courage. “That’s my guy,” he said, gently positioning Tails’s hips and angling him just right. His hands were steady, but his heart pounded in his chest as he lined himself up. He paused for a moment, meeting Tails’s eyes one last time. “Ready?”

Tails closed his eyes and nodded, his tails twitching slightly behind him. “Mhm…” he hummed softly, his voice shaky but resolute.

Sonic took a deep breath, steadying himself before pressing forward. His tapered tip met resistance, the tight ring of muscle clenching reflexively. He eased in slowly, carefully, his hand steadying Tails’s hips as he pushed past the initial barrier. The sensation was incredible—hot, tight, and almost too much to handle—but Sonic focused on keeping his movements slow and deliberate, giving Tails the time he needed.

Tails’s body stiffened as Sonic pressed into him, the initial stretch drawing a sharp yelp from the young fox. “A-Ahh! It’s too much! I-I can’t!” Tails cried out, his voice shaky and high-pitched as his body squirmed beneath Sonic. His hands gripped the ground tightly, his entire frame trembling as tears pricked the corners of his eyes. His breaths came in quick, shallow bursts, the unfamiliar sensation overwhelming him.

Sonic froze instantly, his heart sinking at the sound of Tails’s distress. "Hey, hey, it’s okay," he said softly, wiping a tear away from the young fox’s cheek, his voice gentle and reassuring despite the heat coursing through him. He placed a comforting hand on Tails’s side, giving him a moment to adjust. "Just breathe, Tails. I promise, it’ll feel better soon. You just have to trust me. When you adjust, let me know when you’re ready, okay?"

Tails glanced back at him, his vision slightly blurred from the tears pooling in his eyes. Despite the overwhelming sensations, he caught the look in Sonic’s face—those lust-filled eyes softened by genuine compassion and care. Sonic wasn’t rushing him; he wasn’t pushing him to go further than he could handle. That unspoken reassurance made Tails feel safe, even in this vulnerable moment. He trusted Sonic with his life, and that trust steadied him now.

After a long moment, Tails swallowed hard and gave a small, hesitant nod. "O-Okay… I think I’m ready," he murmured, his voice trembling but resolute.

Sonic smiled softly, his grip on Tails’s hips gentle as he nodded back. "If you’re sure," he said warmly before resuming his slow, careful push. The resistance was still intense, but Sonic remained patient, easing forward inch by inch.

The tight heat around him was almost overwhelming, and Sonic couldn’t hold back the soft grunt that escaped his lips as he continued to slide in. Tails let out a mixture of pained whimpers and soft gasps, his body struggling to adjust to the sheer size of Sonic’s length. "Ahh… I-It’s so big…" he moaned, his voice wavering as he shifted beneath the hedgehog. Sonic grunted softly, the incredible tightness making his movements deliberate and controlled.

"Almost there, buddy… you’re doing so good," Sonic murmured, his voice low but soothing as he finally seated himself fully inside the fox. He paused, his chest rising and falling as he caught his breath. He looked down at Tails, whose flushed face and teary eyes reflected a mix of discomfort and something else—something closer to pleasure. "You okay, Tails?" Sonic asked, his voice low and filled with genuine concern.

Tails squirmed slightly, his body still adjusting as he let out a shaky exhale. "I-It feels so weird… but it’s starting to feel… good?" he admitted, his cheeks burning as he looked up at Sonic. "You’re so big… I-I feel so full…"

Sonic chuckled softly, his grin widening as he brushed a hand over Tails’s head in a comforting gesture. "Told ya it’d get better," he teased lightly before his expression turned more serious. "Alright, I’m gonna start moving now, okay? Let me know if I need to slow down or stop."

Tails nodded, a faint smile crossing his lips as he relaxed slightly under Sonic’s touch. "O-Okay… Sonic," he whispered.

Sonic took a deep breath and slowly pulled back, the sensation making Tails moan softly beneath him. He pushed back in just as carefully, a low grunt escaping his lips as the tight heat enveloped him again. Tails gasped, his moans growing louder with each movement, waves of unfamiliar pleasure coursing through him.

“Damn, you’re so tight…” Sonic muttered under his breath, his movements still slow and measured as he adjusted to the fox’s smaller frame. He watched Tails intently, making sure the young fox was comfortable as he began to establish a steady, careful rhythm.

The hedgehog’s movements were deliberate and controlled, as he listened to the sounds Tails made. Each slow thrust earned soft moans and gasps from the young fox, his body gradually relaxing under the hedgehog’s guidance. The discomfort faded, replaced by a growing warmth that coursed through him with every motion, and Sonic’s deep thrusts hit spots inside Tails that sent waves of pleasure rushing up his spine.

Tails’s fingers curled into the ground beneath him, his breaths coming in shallow pants. “A-Ahh… Sonic…” he whimpered, his voice trembling as pleasure and nervousness bubbled up inside him. His body responded instinctively, his hips shifting slightly to meet Sonic’s slow, measured movements.

“Good, Tails. That’s it…” Sonic murmured, his tone encouraging, eyes fixed on Tails’s reactions. He gritted his teeth, doing his best to maintain control despite how tight and warm the fox felt around him. The pleasure was intense, and it took all his willpower to keep himself from speeding up. Every time Sonic thrusted into Tails, he felt a rush of arousal, the thrill of the taboo exhilarated him.

As Sonic’s hips rolled forward again, his cock hit Tails’s prostate, making the fox gasp sharply. His back arched slightly, the pleasure too much for him to contain. “Ahhh! Th-that felt… really good… Oooh…” he admitted, breathless and filled with wonder. His flushed face turned to meet Sonic’s gaze, and for the first time, his nervousness seemed to give way to trust and excitement. Tails was starting to enjoy himself, his member clearly showing as it leaked steadily.

Sonic smiled, his movements becoming a bit firmer as he adjusted his angle to hit the spots that made Tails moan louder. “Told ya, buddy… Just had to nngfh!! Trust me,” Sonic teased lightly, though his voice was strained with his own mounting pleasure.

“S-Sonic…” Tails’s voice shook, his breathing quickening. He bit his lip, the feeling so good, but he craved more. His body relaxed with pleasure as he found the courage to speak. “C-Can you… g-go faster?”

The request made Sonic pause for a moment, his emerald eyes widening slightly. He looked down at Tails, whose expression was one of pure need, and trust. The fox’s face was flushed deeply, his body serene and glistening with a light sheen of sweat. His bright blue eyes, though shy, were filled with a new sense of longing.

Sonic felt his chest tighten at the sight. He grinned softly, brushing Tails’s hair back gently. “Eh… You sure you’re ready for that, little guy?” he asked, his tone warm and slightly teasing.

Tails nodded quickly, his lips parting as he let out a needy moan. “Y-Yeah… I want to… please…”

Sonic’s grin turned playful, though his eyes softened. “Alright, bud. Just tell me if it’s too much, okay?”

With that, Sonic shifted his weight, planting his hands more firmly on Tails’s hips. He pulled back slowly before thrusting forward again, this time with more speed and force. Schlk! The sound of their connection became audible, rhythmic and slick as Sonic’s movements quickened.

“Ahn! Ahhh—Sonic!” Tails cried out, his voice rising in pitch. Each thrust drew louder, needier moans from him, his body trembling in response to the intensifying pleasure.

Sonic kept his focus, his movements fluid and deliberate as his hips rocked back and forth. “Damn, Tails, you’re so… nngffh… tight…” Sonic grunted, his voice low and filled with praise. The sight of the young fox completely lost in pleasure, his moans echoing in the space around them, only fueled Sonic’s movements further.

Sonic kept his pace steady but firm, pressing forward with each thrust. His pelvis slapped against Tails’s balls, sending jolts of pleasure through the fox’s body as Sonic slammed against his prostate. Moan after moan, Sonic earned high-pitched cries from Tails, his small body arching in response to the overwhelming sensations. The wet, rhythmic sounds of their connection filled the air, blending with Tails’s moans and Sonic’s low grunts.

As Sonic moved, he noticed something that made his breath hitch—a small, visible bulge forming in Tails’s lower abdomen with each thrust. It wasn’t much, but enough to catch Sonic’s eye, making his pulse quicken. “Damn,” Sonic said, his gaze flickering between Tails’s flushed face and the subtle movement beneath his skin. “Look at you, buddy. You’re really taking me.”

The sight made his chest tighten with both arousal and wonder. He reached down, gently poking at the bulge in Tails’s belly, feeling the sensation from the inside. It was unlike anything he’d ever experienced before. The feeling was almost surreal—Tails’s body responding to him in ways that made Sonic’s heart race.

Tails’s eyes fluttered open, his face burning red as he followed Sonic’s gaze. His ears flattened slightly in embarrassment, but the sight only seemed to heighten his pleasure. “A-Ahh! I… I can f-feel it!” he cried out, his hands moving instinctively to rest on his stomach. The pressure and fullness, combined with the rhythmic bulge, sent waves of ecstasy through him that he’d never imagined possible.

Sonic chuckled softly, though his voice was thick with lust. “Yeah, bud? That feel good?” he teased, his hands gripping Tails’s hips tighter as his thrusts grew faster.

“Y-Yeah… ahh! It feels… so… so good ahhahh…” Tails gasped, his voice breaking into more desperate moans with every thrust. His body moved in tandem beneath Sonic, his small frame quivering as the pleasure built higher and higher.

Schlk… schlk… schlk… The wet sounds of their movement mingled with Tails’s increasingly loud cries and Sonic’s gruff grunts. Tails’s body responded eagerly, his cock bouncing off his abdomen as he moved instinctively to meet each of Sonic’s thrusts.

“Ahh! I-I… aaaooohh..!” Tails’s voice broke into high-pitched whines, his back arching as the overwhelming pleasure coursed through him.

“You’re almost there, buddy… God… so good,” Sonic encouraged through his own moans of pleasure, his voice rough and gravelly. His pace quickened even more, each thrust harder and faster than before. His hips snapped forward with an audible smack!, the rhythm growing more urgent with every passing second.

“Ahhh! S-Sonic! I… I can’t… ooohhhh!” Tails cried out, his voice cracking as his small frame bucked under the relentless rhythm. His hands clutched at the ground, his member bouncing against his stomach as pre streamed steadily, pooling on his fur. The pleasure was overwhelming, and the tight pressure building inside him made his cries grow more desperate.

“You’re doing… ha… so good, buddy…” Sonic panted, his tone a mix of encouragement and strain. His thrusts grew sharper, the wet sounds of their connection filling the air. Schlk! Smack! Schlp! Each snap of Sonic’s hips was unyielding, pushing both of them closer to their limits.

The bulge in Tails’s abdomen became more pronounced with every thrust, turning Sonic on to new heights as he could feel his length through the young fox’s belly as it moved in and out. The feeling, so intoxicating to the blue hedgehog.

Tails’s eyes fluttered open at the touch, his cheeks burning red as he whimpered, “A-Ahh… I… I can feel it!” His trembling hands moved instinctively to his belly, the fullness and pressure sending waves of ecstasy that left him shivering.

Tails’s moans were ecstatic, his body moving in tangent with Sonic’s thrusts. His own member throbbed and leaked as it slapped against his belly, though a new feeling began to creep up on the young fox.

“S-sonic…” Tails said suddenly, his voice cracking as his body tensed. “I… I feel like I’m gonna—gonna pee!” His bright blue eyes widened in alarm, his brows furrowed in embarrassment, his small frame trembling as the pressure became unbearable.

Sonic slowed slightly, his movements steadying as he leaned down to meet Tails’s gaze. “It’s okay,” he murmured, his voice warm and soothing despite the heat in his own body. “That’s supposed to happen, buddy. Just let it out—it’s what you need.”

Tails whimpered but nodded, trusting Sonic completely. His body squirming beneath the hedgehog’s as the sensations continued to build.

Sonic resumed his thrusts, harder and deeper than before, the wet slaps of their connection growing louder. Smack! Schlk! Smack! The intense rhythm drove Tails closer to the edge, the tightness around Sonic’s cock making him grunt as his own release loomed.

“Ahhh! Sonic! It-it’s too much… I can’t hold it anymore!” Tails cried out, his voice breaking as his body arched violently. The mounting pressure snapped, and with a sharp, choked moan, his release hit. Warm jets of milky liquid spurted from his member, splattering his chest, belly, and even his face.

"Hnngh… oh yeah that’s it, Tails… let it out… haaa….," he gruntedy, his own hips stuttering slightly as the sensation of Tails clenching around him pushed him to the edge. Yet, he continued to thrust into the trembling fox, their combined sounds filling the space. Schlk! Schlk! Schlk!

The fox was overwhelmed by the dual sensations of his own climax and Sonic still filling him. "S-Sonic! It feels so good aaahahhaa!" Tails moaned, his hands clutching at the dirt below him as he rode out the waves of pleasure coursing through his body. Clenching with each spurt, tightening his grip on Sonic’s cock.

Sonic gritted his teeth, his thrusts becoming erratic as he chased his own release. "Agh… Tails… I’m gonna cum… Hnng—!!" With a guttural grunt, Sonic buried himself deep inside the trembling fox, his cock throbbing as his release spilled into Tails. Thick spurts of seed filled the young fox’s body, the warmth spreading as Tails whimpered softly. The bulge in his belly became even more pronounced, swelling slightly with each pulse.

Sonic never expected to be the one to pop the young fox’s cherry but here he was, hilted in the one he considered a little brother, and boy was he reveling in the moment. Tails on the other hand, was lost in bliss. He could feel as the swelling of his abdomen would get larger and larger, causing him to spurt more and more cum with each load Sonic would unleash in him. He felt full, happy, satisfied. Like all the pressure he’s been feeling for the past week had finally come to a head and exploded, followed by a wave of relaxation.

The two stayed like that for a moment, their bodies pressed together as they caught their breath. Sonic leaned down, resting his forehead against Tails’s, the smaller male still shuddering beneath him. Ha… ha… ha... They both breathed heavily, finally resting after such an intense moment. Sonic whispered, his voice low and soothing, “Feeling better now?”

Tails nodded weakly, a small, blissful smile tugging at his lips as he gazed up at Sonic with half-lidded eyes. “Y-Yeah… that was… unreal,” he murmured, his tails twitching gently in satisfaction.

Tails blinked slowly, still catching his breath, before glancing down at the sticky mess coating his chest and belly. “W-What is this stuff?” he asked, his voice soft and curious as he reached a trembling hand to touch it. The warm, viscous liquid clung to his fur and fingers.

Sonic chuckled lightly, his cheeks flushed as he gently began to withdraw, causing Tails to shiver in response. “That, buddy, is called cum. It’s what happens when you… you know… finish,” he explained, scratching the back of his head sheepishly. “It’s a natural part of all this.”

Tails held up his fingers, now coated with the thick substance, inspecting it with wide, curious eyes. “Huh… so this is what was stuck in me?” He hesitated for a moment, then brought his fingers to his nose and gave them a quick sniff, followed by an experimental lick. His ears perked up immediately. “It’s… sweet…”

Sonic raised an eyebrow, amused by Tails’s reaction. “Sweet, huh? Well, everyone’s a little different. I personally find it salty,” he teased, leaning back slightly. He watched as Tails curiously licked his fingers clean, a small blush creeping onto Sonic’s face. “Glad you don’t think it’s gross or anything.”

Tails shook his head quickly, his tails wagging slightly behind him as he continued to clean himself up. “No way! It’s kinda tasty,” he said with a small giggle, his bright blue eyes glancing up at Sonic. “This stuff came out of me? That’s… so weird but cool!”

Sonic smirked, leaning forward to ruffle Tails’s head fur affectionately. “Well, looks like you’ve learned something new about yourself today, little bro. Just don’t go bragging about this to anyone, alright?”

Tails and Sonic both laughed, enjoying the moment together. But all good things had to end, and Sonic shifted slightly, carefully pulling out, causing Tails to let out a soft whimper as he felt the movement. The sensation left Tails shivering, his sensitive body still reeling from the intensity.

A quick grunt, followed by a schlp, and as Sonic fully withdrew, a trail of cum oozed from Tails’s now gaping hole, pooling beneath him. Tails instinctively clenched, his face flushed as he felt strangely empty.

“There we go,” Sonic said gently, laying back on the grass and looking up at the sky. “All done now. How ya feeling?”

Tails hummed softly, lying on his back with his hands resting on his belly as the seed that had been planted in him spilled from his exit. “I feel… emptier… b-but better now,” he admitted, his voice soft but filled with relief. “Thanks, Sonic…”

- Some time later -

The sun was dipping lower in the sky, casting a warm orange glow over Green Hill as Sonic and Tails did their best to clean up. Tails took a moment to push the rest of the sticky mess out of himself, his cheeks flushing as he felt the warmth leave his body. "Ugh, I think that’s all of it," he muttered, his voice a mix of embarrassment and relief.

Sonic glanced over and chuckled softly. "You’re handling it like a champ, little buddy. First time’s always a little messy."

Tails huffed, swiping at his fur with his tails to clean himself further. "Well, I didn’t exactly plan for this today," he replied with a playful pout in his voice.

Once satisfied, Tails turned his gaze to Sonic, his expression thoughtful and a little nervous. It was clear something had been on his mind ever since their earlier intimacy. Sonic caught the look and tilted his head. "What’s up, Tails? You look like you’re about to invent something or spill your guts."

Tails hesitated, his tails curling behind him. His heart pounded as he summoned the courage to speak. "I, um… I think… I actually like like you, Sonic," he admitted, his voice barely above a whisper. His ears folded back, and a deep blush spread across his cheeks. He quickly looked away, terrified of Sonic’s reaction.

Sonic blinked, the confession hitting him like a sudden gust of wind. He scratched the back of his head, unsure of what to say at first. "Tails…" he began, his tone gentle but uncertain. He didn’t want to hurt his best friend’s feelings, but he also wasn’t sure how to navigate this.

He sighed, running a hand through his quills. "Look, buddy, what we did earlier… that was kind of risky, you know? I mean, we could’ve really messed up if something went wrong. And… you’re still so young. I don’t want to rush you into something you might not fully understand yet. This kind of stuff—it’s a lot, even for me."

Tails’s ears drooped, and his tails stopped swaying. His face fell, his bright eyes dimming as he quietly murmured, "Oh… okay." He hugged his arms around himself, looking down at the ground. The sight tugged at Sonic’s chest, a pang of guilt hitting him squarely.

After a brief pause, Sonic grinned, his signature confidence returning. "Tell you what," he said, his eyes gleaming playfully. "Let’s race back home. If you can keep up with me, maybe I’ll give you an answer about this whole ‘boyfriend’ thing."

Tails’s ears perked up slightly, his nervousness giving way to determination. "R-Really?"

Sonic smirked and got into a ready stance. "Yep. Rested up, feeling good, and it’s getting late. Time to head back anyway. Last one there’s a rotten chili-dog!"

"Hey, no fair!" Tails yelped as Sonic darted off, his laughter ringing through the air. Quickly, Tails sprang into action, his twin tails spinning like a propeller as he soared after his best friend.

The two raced through Green Hill, the evening breeze rushing past them as the golden light of the sunset illuminated the path home. Whatever tomorrow held, Tails knew one thing for sure—this moment, racing side by side with Sonic, was exactly where he wanted to be.

FIN