"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.

Oh yeah, thought Shadow, Sonic's in for a long day.

THE END