Chapter 3: The Big Night
"I just can't wait to explore," Sonic shouted, bolting upright.
"Is that so?" The reply startled Sonic. Robotnik had been outside his room. He knocked lighty on the door. Sonic hurried over to his door to let Robotnik in.
"Someone's up late, I see. Did you have a good birthday," Robotnik asked, caressing Sonic's quills lovingly.
Sonic pulled Robotnik into a hug. "You bet, Eggdad!"
"Good...but I have one more present for you," Robotnik smiled, gazing at the small blue hedgehog he had nearly raised from birth.
A strange feeling manifested itself in Sonic's head. He felt himself growing flush, all of the sudden. "W-what's that," Sonic asked, a small lump in his throat."
"Sonic, I'm a man of science, but any fool could have noticed the way you've been looking at me lately." Robotnik drew himself close to Sonic's face. Sonic in turn began to blush heavily. At that, Robotnik pulled Sonic into a deep kiss. Sonic didn't resist, his tongue being tickled by Robotnik's orange facial hair. Their lips were locked in interspecies bliss as the Blue Blur shivered and moaned. Robotnik's hand began to wander toward the hedgehog's half-chub, stopping short for but a second.
"Are you nervous," Robotnik inquired, noting the hedgehog's soft tremors.
"Not with you, Eggdaddy."
"That's a good boy. Now, come here," Robotnik ordered, moving to kiss Sonic's sweet, little hedgehog lips again.
Robotnik could feel his own member growing in size as he undid the hedgehog's trousers. Sonic imitated the gesture and began removing the doctor's red uniform.
"Wait," Sonic whispered, barely able to contain himself. "I have to...um, go freshen up."
Robotnik smiled. "It's okay. I prefer you natural."
"No, I mean, I have to...go," came Sonic's nervous reply.
Robotnik caught Sonic's meaning and grinned ear to ear, noting in the corner of his eye an open pack of Sonic's old diapers. He had an idea.
Sonic followed his gaze. "Oh, is that what you want, Eggdaddy," Sonic wondered coyly. He moved from Robotnik's embrace as the doctor stood transfixed. Sonic disrobed, his erect pantsu snake swaying lightly. He quietly donned a fresh diaper and returned to his bed, positioning himself so he was in the position of being positioned in the on-his-back position. "Eggdaddy, I feel funny," Sonic said, smiling and gazing up at his father. Eggman chuckled deviously.
"Oh? Does someone need a change," Robotnik intoned, his grin widening. Sonic nodded as his face contorted. Much like that fateful day when Sonic had confronted Eggman for the last time, an explosive sound was heard throughout the steel laboratory as Sonic ripped fierce shits into the desecrated linen cloth.
"Oh, my," Robotnik exclaimed, moving back toward the bed.
"Someone's a stinky boy. I guess youdo need a change." He undid the diaper's front straps, their adhesive tearing roughly away as a sickly-sweet smell filled the room. Robotnik gazed down at the mess before him, producing a fresh diaper from the pack.
"Is that for me, Eggdaddy? I did a oops," Sonic pouted playfully in a mock baby voice. Robotnik snickered as he cleaned Sonic's soiled posterior with a wet wipe.
"There, there, Eggdaddy is here to clean you up," Robotnik cooed, his erection at full mast.
Throwing the dirty diaper into a nearby pamps bin for later snoofs, Robotnik inspected the hedgehog. Before closing up the egg diaper, he looked intently at Sonic.
"Eggdaddy? W-what's wrong," Sonic intoned. He puckered his lips, signaling Robotnik to join him in the bed.
"Oh, it's just, you're still a little dirty." Robotnik moved his face closer to the Blue Blur's Blue Asshole. "I know just what to do."
"Eggd-" But Sonic didn't finish the thought as he felt Robotnik's tongue dart carefully over his rear pucker.
"Oh, y-yes, Eggdaddy. Mmmm," Sonic moaned, pushing himself in the direction of Robotnik's face. Robotnik's tongue darted in and out of the hedgehog's sphincter, occasionally dancing across it for good measure.
Robotnik didn't mind the taste. He had cleaned very thoroughly, after all. Sonic's ass was so shiny and glistening. It would have been difficult for anyone to resist admiring it. The tufted quills, rather than prodding at the doctor's lips, seemed to invite him to explore deeper. He pulled Sonic's furry rump towards his face, penetrating the hedgehog's taut anus.
"Ohhhhhh, Eggdaddy!"
Robotnik, fully immersed in what he was doing, wasn't paying attention to Sonic's newest birthday gift. The golden ring inexplicably hovered near Sonic's bed as Robotnik accidentally kicked it with his foot. The sudden gesture sent Sonic-speed waves of pleasure racing through the hedgehog as his cock erupted in gobs of little, white creamies. Sonic's own forbidden ring contracted around Robotnik's tongue as Robotnik in turn continued pressing himself into the blue butt.
The kick at first did nothing. Seconds later, however, a flash of light filled the room as two equally tall figures emerged from within the golden circle. Arin Hanson and his pal Dan Avidan stepped forward with neither Robotnik nor Sonic noticing, as they were mutually enraptured in the orgasm that was taking place.
"Whoa, what happened, Arin," Dan enquired.
Arin righted himself before replying, "I don't know, Dan. Oh, hey, that guy's eating hedgehog ass. Sweet!"
"Right you are, Arin," Dan mused. Dan, a slender fellow compared to Arin, who was relatively average in size, looked on as Robotnik and Sonic turned to them. The Game Grumps took in the scene for half a second before Sonic spoke up.
"Egg-d-daddy, I have to go again."
"Oh, already?"
"No, not like that, tee-hee," Sonic chuckled.
"You'll ruin your bed. I'm out of fresh diapers, little Sonic."
Arin, appraising the situation, stepped forward. "Whoa, you're Sonic the Hedgehog! I love you! Did you say you have to pee, but there aren't any diapers? The restroom's probably far away. Never fear, I've got an idea," Arin announced. He hurriedly placed Sonic's chode, now flaccid, in his mouth.
"Yer-cen-yerz-mai-mowf-as-yer-diypurr," came Arin's muffled voice, his lips struggling to make sounds around Sonic's en-cummed weiner.
Sonic nodded, relief overtaking him as he unleased a stream of frothy pee jizz into Arin's waiting maw. To his credit, Arin had impeccable control over his gag reflex thanks to years of vocal training, and was able to swallow with gusto. Dan Avidan, watching from the corner of the room, felt a sudden pang of jealous curiosity.
"Hey, move over Arin, you're gonna hog it all." Arin scrambled out of the way so his friend could assist with Sonic's bathroom troubles. Since the stream hadn't stopped, the champagne flowed gingerly onto Arin and Dan's faces as Dan's lips momentarily struggled to find purchase. Thankfully, his swallowing, too, was impeccable.
Sonic finished with just a few final spurts as Dan gratefully accepted each amber drop down his throat.
"Wow, thanks, guys. I would have done it, but my mouth was a little busy," Robotnik winked.
"No problem, Dr. Robotnik," Arin replied, wiping hedgehog piss from his own drenched mustache, "Yum!"
Arin took a step backwards, accidentally bumping the golden ring once more as he did so. It spun in place for a few seconds before slowing. On the final revolution, a gray human figure emerged, accompanied by another flash of light.
"Liquid! Wait, you're not Liquid. Oh, you're eating hedgehog ass. May I join," Solid Snake asked, politely.
"Of course," Sonic and Robotnik replied in unison.
"Hey, don't leave me out," said Dan.
"Nor me," Arin proclaimed, joining in the fun. It was two hours of bliss for the fivesome as they moaned and ate butt.
"Well, as great as that was, I could go for some actual food," Dr. Robotnik surmised, standing up.
"Don't worry, I know the perfect place," said Sonic.
One flight later and they all entered a small, unmarked café in the heart of Tokyō.
"I'm sorry, it seems only one of you can eat here. We have a strict dress code," said the café hostess, pointing at Sonic, who was still wearing his diaper.
"I knew I forgot something," Robotnik bemoaned.
"We didn't get any diapers for our new friends," Sonic complained.
At this, Robotnik tore away his uniform in one motion, revelaing a bright white diaper with a little, sky blue bow.
"It's alright. I'm always prepared for a party," Snake said, tearing away his own Velcro Skull Suit. Arin and Dan looked beside themselves.
"You underestimate us," Dan said quietly. He shot a meaningful look at Arin who nodded. In unison, they both tore away their snap-on outfits, revealing a pair of matching white diapers, each patterned with little yellow ducks and game controllers.
So it was that all five members of the newly-formed Hedgehog Piss Drinking and Diaper Society ate and talked excitedly, so happy to have found one another. There would be many orgies to come forevermore, and as the hour grew late, eating and camaraderie were soon replaced with cries of needing to be changed. Solid Snake was first, followed by Dr. Robotnik, then Dan and Arin, whose bowel cycles were perfectly synchronised. Alas, Sonic, too, was changed. He was, at last, a happy diaper-wearing hedgehog.