"So, everything's in place?" The ebony hedgehog whispered down the phone. A light, sensual chuckle came through the receiver.
"Of course hun. You know I'm a girl you can depend on. Which is why I'm not going to ask you what on Mobius you have planned for big blue's big day." Shadow couldn't help but smirk to himself.
"Trust me, Rouge. He's going to love every second of it."
"Well, alright then. Bye bye." Shadow put the phone down just as his blue boyfriend sped into their  bedroom.
"Hey Shads! Who was that?" Sonic asked, sitting down on the bed next to him. Thinking of a quick excuse, Shadow put on a faux serious face.
"Do you want to claim compensation for the car crash you had 40 years ago?" He asked before he and Sonic burst out laughing. The blue hedgehog slapped him on the back as he let his head hang back in laughter.
"No way, seriously! I know it's my birthday, but I'm not 40 yet!" They continued laughing for a few more moments, until the room returned to quiet.

Sonic kicked his legs back and forth, lost for words until a horny thought entered his brain.
"Hey Shadow, how about a 'treat' for your favourite hedgehog, seeing as it's his birthday?" he flirted, leaning against Shadow. The ebony hedgehog simply stood up and walked round to the other side of the bed.
"Nope not tonight. It's only the 22nd, you're not a birthday boy until tomorrow. Besides, you need to hold it in," he flashed a smirk as he climbed into bed, "because I'm taking you to Club Rouge tomorrow."

The next day began as normally as any birthday. After a very pleasant wake up, Shadow brought Sonic breakfast in bed, before they opened a few presents, including a specially reinforced treadmill which the blue blur was especially thrilled with. And then, at about noon, they headed off for Club Rouge. In order to make it a bit of a surprise, Shadow had chosen the new location in Station Square, which neither he nor Sonic had been to before.

They quickly passed across the lively casino floor, heading straight to the pair of black velvet curtains that led downstairs, waving to Bark, the polar bear bouncer as they did. Sonic could barely hold in his excitement as they descended the spiral staircase, the lights around them dimming as they descended further towards the Labyrinth of Lust. Then, at the foot of the staircase, they came to a corridor, at which they turned right. As well as countless private rooms, the new Club Rouge in Station Square also had many sexy social spaces, including it's own bar, sauna, large jacuzzi hot tub, a large, free-for-all dark room, and if rumour was to be believed, a fully kitted dungeon.

"Well, this looks fun." Sonic noted as they opened the door to the bar, taking a moment to scan the room. It had the same red carpets and walls as the rest of the club, with a dark mahogany bar against the far wall, and around two dozen round tables dotted across the room, with four leather chairs at each one. A confident smirk on his face, Shadow marched over to the bar, dinging the little bell to catch the bartender's attention. 

The Mobian across the bar was a tall, muscular bird, from the looks of it, an albatross, standing grey, and tall.
"Can I help you two?"
"Yes. We're here for the Sonic Birthday Bang." Shadow stated as said blue blur raised an eyebrow in confusion. The bartender simply smiled.
"Oh sure. Heh, guess this is the birthday boy?" To which Shadow nodded. In response, the bartender made a beckoning gesture, at which another Mobian appeared.
"Take the lucky blue hedgehog to get ready, then call the other hedgehog when you're done." Sonic was completely in shock.
"Geez, how elaborate is this birthday thing, Shads?" He asked, turning to Shadow. 

Said hedgehog simply smiled as pecked his boyfriend's lips.
"As elaborate as I can for your birthday, faker." Sonic smiled, the once jest now an affectionate nickname.
"Alright Shadow." Sonic turned to get a good look at his escort. Dressed in a frilly maid outfit, with a dildo gag in his mouth and a slight limp, the blue fennec standing before him turned to walk away revealing the rather large vibrator that was presumably the source of the limping. With nothing else to do, Sonic followed.

Shadow turned around and sat at the bar, ordering a drink as he waited. As he did, he suddenly felt something warm and wet against his asshole. Whipping around, he noticed that behind each bar stool was a tied up gimp on his knees, covered head to toe in leather except for a hole in the front of their faces. Looking at the one behind him, Shadow could make out a pair of large front teeth with braces. Each wore a bright pink collar around their necks, which was linked to the stool by a small leash. This, along with the bound hands and spreader bars, kept them stuck behind the stool.
"Interesting." Shadow noted before turning around, sipping his drink as he was slowly rimmed.

Then, about half an hour later, the fennec maid returned, at which Shadow stood up, and silently followed the frilly male. He was lead down a side corridor, almost wincing as moans and groans came from behind every door, until the maid stopped quite abruptly, causing the usually stoic Shadow to stumble. The fennec then turned to him, handing over an electronic door key before curtseying and walking away. Shadow slid the card into the slot by the door, hearing the lock click as he pushed the door open.
"Wow, would you look at that..." Shadow muttered to himself, getting turned on.

The room was much like any of the other private rooms, with one major exception; the usual bed and chair had been removed, leaving the room empty save for a large black box. It was completely plain, except for the button and marker pen on top, and the large hole in the side, sticking out of which was a certain blue bubble butt. Sonic's cheeks were slightly spread, and he had been stuffed with the same kind of vibrator that the fennec had, which buzzed through the silence. Smirking to himself, Shadow sauntered up to the box, and pushed the button.
"Hey Sonic." Through the intercom came a burst of muffled screams and shouts, clearly worried.

It had all been so fast. He had barely walked thirty feet down the corridor before he had been jumped from behind and manhandled into a side room by two muscular guys. Before he knew it, he had been bound, gagged, and stuffed in a chasity cage with a massive, vibrating dildo shoved up his ass. Worst of all, he'd been trapped into some kind of padded velvet tube with his butt sticking out. Then out of nowhere came Shadow's voice.
"Calm down Sonic, you're gonna be fine. Sorry for the shock, but this is all part of your birthday treat." A confused whine came from the intercom. 

"Don't worry, it'll make sense soon. Just lie back and relax." He said with a chuckle, releasing the button just as there came a knock at the door.
Oh great, who could that be? Sonic wondered, unable hear anything save for his heavy nasal breathing, and the buzz of the vibrator as it sent shock waves throughout his rear. A few minutes later, another voice rang out, deep and gruff.
"Hey Sonic, looking good."
Knuckles!? 

The echidna smirked at Sonic's predicament, his dick twitching as he stared at that plump ass, stuffed and stuck, just for him. Pushing the button again, he began to speak.
"Happy birthday Sonic. You've been a great friend, without you I would've been alone on that island forever. Now," he began, gripping the vibrator and slowly pulling it out, " here's the perfect gift, nine inches of length, seven inches of girth, all for you." Sonic froze as the dildo slipped out of him, finally realising what Shadow meant by Birthday Bang. 

Knuckles lined himself up, his bulging tip pushing against the quivering entrance.
"Ready for me, Sonic?" The hedgehog could only moan as Knuckles pushed forward, the head of his cock slowly disappearing inside the quivering hole, his balls heavy and full. The echidna laughed as he heard Sonic's moans, letting out his own as the tight ass squeezed him like a vice.
"Oh, Sonic. I've been waiting to do this for so long. I'm going to fuck you, birthday bitch." The air was forced from Sonic's lungs as Knuckles gave a massive thrust, burying himself balls deep, stretching Sonic's hole like never before, before pulling back out, grinding his large cock veins against Sonic's prostate.

"Oh, yeah! Definitely the second best ass I've ever fucked!" Knuckles cried as he bucked in and out, fucking the hedgehog hard and fast. Sonic couldn't hear Knuckles cries, but he felt the echidna's cock, bigger than any he'd taken before. He groaned around the dildo in his mouth, dribble pouring down it's silicon shaft and out of the corners of his mouth. He winced in pain as his own dick throbbed against the chastity cage, the tears beginning to roll down his cheeks as the pleasure built inside him, his face pressed against his velvet prison.

 He could feel Knuckles balls slapping against his ass, big and heavy with a load of cum.
"Oh, shit! I'm gonna cum! I'm cumming Sonic! I'm gonna-"
Sonic's eyes fluttered open as a hot sensation hit his ass. Knuckles let out once more moan as he exploded in Sonic's ass, thick ropes of spunk shooting out of him as he let out another groan. Sonic's own cock throbbed as the warm jizz pooled inside him, hot cream filling his ass.
"T-take my cum bitch! Y-you're nothing but a fuckhole Sonic!" Knuckles moaned as the last of his jizz shot out if his dick. Satisfied, the echidna pulled his cock out of Sonic's ass, replacing the vibrator as he did so, keeping his load inside the hedgehog's rear.

"His ass is great, isn't it?" Shadow asked, having watched from the corner. Knuckles turned and smirked.
"Hell yeah!" He replied.
"Don't forget to sign." Shadow said. Knuckles grabbed the marker and signed his name on Sonic's left cheek, giving it a spank afterwards.
"Hey Shadow, should I send in the next guy?" Knuckles asked, to which Shadow nodded.
"There's a lot of people in line." The echidna observed.
"Good." Shadow replied. Taking this as the end of the conversation, Knuckles made his way to the door, opening it to beckon in the others. After giving a fistbump to the next in line to give the hedgehog a pounding, he left.

Mighty had to admit, he'd always felt something for the blue hedgehog, if only lust, even now that he and Ray were going steady. As he slid into the room, he was met by the sight of Sonic's ass, deep blue yet tinted red with a single trail of white cum tricking past the thick vibrator as it buzzed away.
"Uh, hey Shadow." He waved, acknowledging the ebony hedgehog in the corner.
Why is he just...watching? Does he have a cuck kink or something? the armadillo wondered to himself. Nevertheless, he turned to the black box containing the birthday boy, looking around for some lube.
"There's uh, there's no lube anywhere Shadow? Has he already been prepped?" He asked, to which Shadow nodded.
"Sure," he then muttered under his breath, "if you count a load of hot echidna cum as lube."

Tentatively, Mighty reached for the button.
"Hey there Sonic." He greeted almost casually.
"Muh-ee..." came Sonic's moans. He smiled.
"Yep, it's me. I just wanted to wish you a happy birthday, I mean if it weren't for you, I might have never met Ray, or found him again. I owe you for that, so here's a start." He released the button, and reached for the vibrator. It slipped out rather easily, revealing the gaping hole sloshed with frothy semen. Mighty was impressed.
"Wow, Knuckles knows how to bust a nut! Lucky I don't mind sloppy seconds." He remarked smugly as he lined his own shaft, as black ad he was under his shell, with the welcoming entrance.

With a satisfying squelch, Mighty slid his gargantuan dick into the used hole, the still warm load enveloping it as it penetrated deep into Sonic. All Sonic could do was groan around the dildo as Mighty's shaft stretched him open like never before.
H-He's even bigger than the last one! Sonic thought to himself as Mighty began to buck his hips, feeling the black manhood slide deeper into his battered hole. The hedgehog's body tensed as his sweet spot was assaulted again, his little cocklet twitching in its cage.
"Mighty..." Sonic moaned, his voice muffled as he heard the armadillo's voice, coming from somewhere in the box.
"Better than that vibrator, ey, Sonic?" Mighty asked smugly, knowing the gagged birthday boy couldn't answer.

The armadillo continued to pound the hedgehog's ass, a coil of hot pleasure building in his abdomen with every thrust, waiting to be released. Then at last he hilted himself balls deep inside the blue whore, the tip of his cock reaching inside the hedgehog's guts. Sonic squealed in pain, but Mighty hardly noticed, distracted by the intense pressure as thick, hot cream came gushing out of his throbbing cock, coating Sonic's abused hole. The hedgehog cried as much as he could as another load began to fill him. His cock ached as he was prevented from releasing his own orgasm by the thick sound inserted in his urethra. 

This didn't at all bother Mighty, who kept panting in ecstasy as rope after rope of his pent up jizz splattered the fuckhole.
"Mighty!" Sonic gargled around the cock gag as the armadillo continued to unload in his ass, some of it even making it all the way upto his gut. Eventually though, the last of Mighty's cum drizzled out of his manhood, and as instructed, he quickly pulled out, keeping fresh load inside by jamming the vibrator back in.

"Man, I needed that!" Mighty exclaimed as he grabbed the marker and wrote his name on Sonic's ass, so as to remind the hedgehog who he'd been fucked by.
"Thanks Shadow, this was great! I'll send in the next one, shall I?" He asked as the black hedgehog nodded.
"See you later then." Mighty said as he slid out of the door.

The next few hours were absolutely amazing, and exhausting, for the blue hedgehog. It was rinse and repeat, the teasing vibrator would be pulled out, then a guy would fuck him, cum inside him, stuff the vibrator back in, and from what he could tell, write on his ass, sometimes with a spank.
Chaos, I must've been fucked at least thirty times by now! Sonic thought. He felt so tired, his muscles were burning in exhaustion, his dick practically convulsing in denial, and hid battered rear end felt almost constipated, filled to the brim with other men's essence. Once again he heard the crackle of the speaker being turned on, and another voice rang out around him.

"Uh, hey Sonic. It's me, Silver." The white hedgehog said almost timidly.
Silver, really? Sonic pondered. His futuristic friend gave a chuckle.
"Yeah, I was surprised when Shadow invited me to this. You know I'm not exactly a dominant guy, but he said I could do something else. Anyway happy birthday! You've been such an awesome friend to me, helping me fit in, forgetting the whole 'Iblis Trigger I must kill you' thing..." he spoke again, almost in a whisper "and of course, if it weren't for you, I'd still be a virgin. Let me show you what I've learnt." Silver finished, releasing the button.

The ivory hedgehog got to his knees, his head level with the heavily used blue rump. Silver reached out and gently tugged on the vibrator, which was in such a loose hole that it practically fell out on it's own. A mixture of over two dozen guys' thick, salty jizz began to leak out, at which Silver greedily licked his lips, before sticking out his tongue and leaning forward. His mouth started tingling as he caught the first few drops of old cum, scooping it into his maw as it was filled with the saltiness of the spunk, mixed with a hint of Sonic's spicy ass. The white hedgehog hummed softly, feeling himself harden as he gulped more cum into his gullet, laping up the salty flavour as he sucked it down. As he grew more erect, Silver pressed his lips to Sonic's gaping asshole, moaning slightly as the jizz freely flowed into his eager mouth. He then proceeded to slide his hungry tongue inside him, letting Sonic endure the sensation of being rimmed after hours of rough, hard sex.

Oh Silver! Work that tongue! Sonic thought as the pressure inside him began to ease, replaced by the pleasure of Silver sucking on his prostate. Silver was salivating over his meal, he was no expert, but from the sticky, gooey mixture, he could make out at least ten different loads he'd tasted himself before. Reaching a stray hand to the intercom, he remarked.
"Wow Sonic, you've taken some really big boys today!" Letting go of the button, Silver pushed forward again and slid his entire tongue into Sonic's rectum, licking every inch of his tasty inner walls, leaving a distinct hint of chilli in his mouth. Sonic closed his eyes in bliss, whilst his blue nub of a dick tried again to stiffen to life, but was again prevented by the thick sound that it was practically skewered on.

Then at last, Silver withdrew from his ass, gulping down the last of the jizz with a smile. His breath definitely smelt of dick now, but Silver didn't really care. He stood up and slapped his hands against each other.
"Well, that's my work just about done." He summed up cheerfully, before his eyes drifted down to his rock hard cock.
"Um, Shadow," Silver began tentatively, "all the other guys, you don't happen to know-" he was interrupted by the ebony hedgehog's deep laugh.
"They're having some kind of after party in the dark room. Have fun." Silver's dick twitched as his face turned red.
"Thanks Shadow." He mumbled as he left the room.

With the room now empty, Shadow got up from his chair and walked over to the box, lightly pushing the intercom button.
"Alright Sonic, sit tight, I'm going to get you out." he said gently, eager to calm the blue hedgehog before releasing him. After a quick inspection of the box, he found the latch that opened up the lid, revealing the cramped, velvet lined space that Sonic had been kept in. The hedgehog winced slightly at the dim light, but managed to crane his head round to look at Shadow.
"Hey there, ready to get out?" He asked, to which Sonic nodded rapidly. As carefully as he could, Shadow lifted him out of the box, and gently shifted Sonic into a bridal position in his arms, and made his way to the door.

A few yards down the corridor was another room Shadow had booked for the occasion, and as he reached the door it was opened for him by the same frilly fennec maid. The smaller male curtseyed as Shadow walked through the doorway, and before he could follow them in Shadow turned to block his path.
"This next part is between me and the birthday boy, but the rest of our friends might need some 'relief'. They're in the dark room." The maid nodded before limping away.

The room was practically bare except for the jacuzzi in the middle, which was not exactly massive, but certainly big enough for two. Sonic had already been striped of what little clothes he usually wore, and so Shadow simply kicked off his own shoes and climbed into the water. Settling down in the jacuzzi, he sat Sonic between his legs, facing away from him. The minute the blue blur's ass hit the warm, bubbly water, he let out a deep, satisfied sigh, as if a great relief had washed over him.
"Right, first things first." Shadow muttered as he untied the strap that ran around Sonic's head from the base of the dildo in his mouth. 

Once he had undone it, he quickly pulled the gag from Sonic's mouth, allowing the hedgehog to fully breathe. Deep ragged pants came from Sonic with the odd cough, and all the while Shadow gently rubbed circles on Sonic's upper back.
"It's okay, just breathe. I've got you." Shadow said, his voice soft, yet assertive. The perfect tone to make Sonic feel safe and supported.
"W-wow Shads," Sonic huffed, "that was intense..." The ebony hedgehog's eyebrows lowered in concern.
"Too intense?" He asked nervously. Sonic managed to turn his head slightly, a light smile on his face.
"Too intense? This is me you're talking to, you don't think I can handle a couple dozen guys? Hehe, I loved it." He said, his signature confidence still shining through. Shadow smiled back as he began to fiddle with the bonds on Sonic's hands.
"Good."

Once the bonds were off, Shadow carefully unlocked the chastity cage and slid it off, at which Sonic gave a cry of relief as several orgasms that had been trapped inside by the thick sound were finally released, floating like clouds in the water.
"Feeling better?" Shadow asked as he slowly kneaded his hands against his boyfriend's shoulder blades. Sonic simply nodded as he laid back slightly, resting his head in Shadow's thick chest fur.

"So which one were you?" Sonic asked out of nowhere. When Shadow gave a confused look, he elaborated.
"Which guy were you? Third, seventh, twelfth, which one?" Shadow gave a chuckle as he pressed a kiss to Sonic's head.
"None of them, I just watched." At this, Sonic fully turned and gave his boyfriend a disbelieving look.
"Really? I was trapped in there, open and available for hours, and you didn't fuck me? Why bother staying in the room?" Shadow looked at the blue blur as if he'd asked the stupidest question ever asked.

Gripping the hedgehog's waist, he closed the space between them, planting a quick kiss on the other's lips.
"Do you think I'd ever leave you alone in a state like that? It was all kinky fun, but I wouldn't forgive myself if something went wrong." Shadow then leant in to the blue hedgehog's ear.
"Besides, when I make love to my boyfriend, I'd prefer to see his face." He whispered, pulling back to look at Sonic, a light blush on his face. An idea coming to him, Sonic grabbed Shadow's shoulders and pulled him into a close embrace.
"So, Shadow..." he began, a smirk crossing his muzzle, "ever fucked in a hot tub before?"

THE END