"Get him, Knuckles! Punch it!"

"Got it, Sonic!"

A young red echdina smirks back as his blue hedgehog pal was home-attacking Eggman's Buzz Bombers whilst pointing at the weakspot of Eggman's Burnbot. Knuckles charges up an attack before punching the robot with his fist, exploding it into pieces.

Sonic smirks as he finishes destroying the Buzz Bombers, he turns to Knuckles and gives him a thumbs up.

"Nice one, Knux!"

Knuckles smirks and nods back to Sonic as he lands on the ground and watches as Sonic runs over to him. He gives Knuckles a bro-fist before looking up, only to find that Eggman wasn't there. He moves his eyes around, staying in a defensive position.

"Where did he go?"

Eggman smirks and laughs evilly from behind a bush before whispering.

"Luckily I still have Plan B..."

He presses a button and laughs loudly as a robotic arm fires out and grabs Knuckles by the waist. Sonic jumps back, avoiding the arm and reaches out.

"Knuckles!"

"Muhahaha! Seems that Knuckles isn't as strong as we thought!"

Knuckles growls as he moves around, trying to pry the machine's hold on him.

"What do you think you're doing?! Let me go!"

Eggman laughs once again as he dodges Sonic's attempts to break the arm. Sonic growls and tries home-attacking the arm but soon gets knocked out of its path. Knuckles gasps as he watches Sonic get knocked to the ground and struggles harder, trying to break free.

"So long, Knerples!"

Sonic watches in horror as Eggman makes the robot's arm spin around before throwing Knuckles into the distance. He reaches his hand out.

"Knuckles! No!"

Eggman chuckles evilly whilst twiddling his moustache. Sonic clenches his fists as he bares his teeth and looks up at Eggman.

"You've really done it this time, Egghead..."

"Muhaha, I guess I have! I must celebrate this!"

Before Eggman could fly away, Sonic jumps up and spindashes into his hovercraft, exploding it into pieces. Eggman screams as he is sent flying through the air. He lands on the ground and growls before getting into a smaller hovercraft and using it to escape.

"I'll be back, rodent!!"

Sonic nods before lowering his ears and running off towards the direction that Knuckles was thrown into. 

"Hold on, buddy, I'm coming..."

He continues to run until he discovers Knuckles' body and kneels down beside him, placing a hand onto his head.

"Knuckles! Can you hear me, buddy?!"

Knuckles groans as he opens his eyes, squinting slightly from the sunlight shining down on him. He slowly sits up and holds his head in his hand.

"Nghh... S-Sonic?"

"Knuckles!"

Knuckles watches as Sonic gives him a hug. He smiles and hugs back but soon feels Sonic pull away. He notices a large bruise around his groin area and groans from the pain.

"Y-You're hurt..."

Sonic wraps an arm around Knuckles' shoulder as he helps him back to his feet. Knuckles groans again as Sonic slowly begins to walk beside him. He smirks a bit as he winces.

"Don't worry about it, Sonic. You know me, I've been through worse!"

Sonic smiles a bit as he walks beside him.

"Come on, buddy, let's get you home..."

--------------------------------------

"Sonic! Knuckles! Where have you two been?!"

Sonic helps Knuckles to a nearby couch as he watches him sit down. A young pink-furred hedgehog, named Amy, gasps as she notices Knuckles' bruise.

"You're hurt!"

"Yeah, we got into a fight with Egghead, it looks like he hurt Knuckles pretty bad..."

"Well, in that case, I better heal him!"

Sonic and Knuckles watch as Amy runs off and soon comes back with a first aid kit in her hands.

"Hmph... I'm fine. Pretty sure I don't have any broken bones..."

Sonic laughs cutely as he covers his mouth with his hand.

"Come on Knux, you don't have to act all tough. You're hurt after all..."

Knuckles crosses his arms as Amy prepares some ointment for the bruise.

"It's just a bruise... and it only hurts when it's touched so I'm fine."

Amy takes off her gloves before sticking her hand into the ointment and rubbing it through her hands.

"Alright, let's just put some of this on the bruise. It should stop it from hurt-- oh, I didn't realise it was around THAT area."

Knuckles blushes as he notices that the bruise was slightly around his groin area, but mostly on his torso.

"It's on my STOMACH, not my groin!"

Sonic smirks a bit.

"Alright Knux, don't be moody~"

Knuckles glares at Sonic as Amy begins to the rub onto his bruise. He groans a bit from the pressure but soon looks down as she finishes.

"There you go, Knuckles."

Sonic smiles as Amy goes off to wash her hands. He looks down at the bruise.

"Feel any better, Knux?"

Knuckles gently touches the bruise with his hand and soon winces again, pulling his hand away.

"A little bit..."

Amy smiles as she packs away the ointment and picks up the first aid kit bag.

"Looks like my work here is done..."

Sonic and Knuckles watch as she leaves and Sonic soon whispers to Knuckles.

"Do you have any strange effects from the bruise, Knuckles?"

Knuckles gives Sonic a confused expression.

"What do you mean 'strange effects'?"

"Well, the bruise is in your lower area, kinda around the bladder area..."

Knuckles pouts as he crosses his arms, feeling a bit worried that his bladder had been affected.

"What kind of question is that?! My bladder's fine... besides, Amy's the doctor, not you."

Sonic sighs as he shakes his head.

"Alright, I was just curious."

The young pink-furred female, who had overheard the conversation, enters the room again and walks over to Knuckles, kneeling down beside him.

"I just need to check one more thing before Knuckles can rest."

Sonic and Knuckles look up at Amy with confused expressions as she gently presses a hand against Knuckles' bruise. Knuckles groans as he holds onto the couch below him.

"What are you doing?"

"Like Sonic said before, your bladder may be affected by the bruise so I'm just gonna check it..."

Knuckles huffs a bit as he puts his hands onto his chest.

"Fine, let's get it over with..."

"Ok, I'll just be pressing against it, like this..."

Amy watches as she applies more pressure to Knuckles' bruise. Knuckles grits his teeth a bit as he feels the pain and pressure on his bladder.

"Feel anything, Amy?"

"I don't feel any bumps or anything, but I better check again just to make sure..."

Sonic nods and watches as Knuckles bites his lip. He lowers his ears.

"Don't worry, Knux... it'll be over soon."

Knuckles, who had now felt the full pressure of Amy's hands on his bladder, gasps and opens his eyes widely as a stream of yellow shoots out of his penis, soaking his shorts and the couch beneath him with urine.

Amy and Sonic watch in horror as Knuckles continues to urinate, making a large puddle on the couch as well as the floor. Once he had finished, Knuckles looks down at the couch and feels his muzzle become warm as he starts to blush.

Amy looks down at the puddle and soaking wet couch before sighing in an annoyed fashion. She crosses her arms and storms off out of the door.

"I better get some cleaning equipment, I'll be back in a while!"

Sonic winces as Amy slams the door behind her and looks back to Knuckles, who was now soaking wet and blushing brightly.

"I didn't know your bladder was THAT sensitive, Knuckles..."

Knuckles raises his head and crosses his arms, pouting.

"I-It's not! I just... I..."

Sonic lowers his ears as he notices Knuckles looking away. He hadn't had an accident since he was a baby so he was unsure about how to react to the situation.

Sonic smiles a bit as he wraps an arm around Knuckles' shoulders.

"It's ok Knux... all tough guys have accidents sometimes, even me!"

Knuckles continues to look away.

"E-Easy for you to say... you didn't just pee all over the couch!"

Sonic looks down at the couch and smiles back up at Knuckles.

"Ah, don't worry about it... besides, you only peed on the couch's blanket. We can wash that, no problem! Then again you had an accident, so I guess you'll have to wear something to stop it from happening again..."

"Like what?"

Sonic gets up from beside him and walks over to a cupboard before starting to rummage around inside it. 
A few seconds later he comes out and holds up a box of diapers.


"Something like this..."

"D-Diapers?! Where did you even get those?!"

Sonic blushes a bit as he knows that he's secretly wearing one under his shorts.

"T-That doesn't matter... all that matters is that they work well-- I mean Idontusethemanymore!!"

Knuckles looks over to Sonic's waist and smirks a bit.

"Sonic the Hedgehog wearing diapees... how cute~"

Sonic clenches his fists and puts them down by his side, feeling blush become much warmer.

"Hey! I said I don't wear them anymore!!"

Knuckles continues to smirk as he hears a crinkling sound coming from Sonic.

"You're wearing one right now? How adorable! I didn't think you were into that sort of thing..."

"I'm n-not! Besides, you can't prove that I'm wearing one, so there!"

"Oh really~?"

Knuckles continues to smirk as he reaches over and pulls down Sonic's shorts, revealing his padded pale blue diaper.

"There it is~"

Sonic gasps and looks down as he puts his hands between his legs and lowers his ears, blushing brighter than before, realising that he needs to pee. 

"A-Alright... you win this round."

Knuckles smirks and nods as he crosses his arms.

After a while Sonic begins to calm down a bit and rubs a finger against his nose.

"W-well... you know, Knuckles. These diapers are really comfy and they're really helpful. Y-you should wear one too, then it'll be less embarrassing for me..."

Knuckles feels his own muzzle begin to turn red and soon looks away shyly.

"I don't know..."

Sonic begins to wriggle around as he pulls his shorts back up and sits on the arm of the couch. He felt the need to pee become a bit stronger but holds it for as long as he can.

"C-Come on... no-one will know except me and you owe me... you just pulled down my shorts after all."

Knuckles chuckles a bit.

"No one's here to see your pampered bottom... I just... I dunno if diapers are my thing really. Then again I did just wet the couch..."

Sonic moves up the arm on the couch and smiles a bit as he rubs the bottom of his diaper.

"Why don't you just try one out? I got plenty to spare and they're really comfy..."

Knuckles sighs in frustration.

"... you're not gonna leave me be until I try one, are you?"

Sonic smirks a bit as he sticks his tongue out in a cheeky way.

"Nope~"

Knuckles sighs once again before standing up from the couch. He grabs some baby wipes which were in the cupboard too and cleans himself up before grabbing a diaper.

"Fine, I'll try one..."

Sonic smiles nervously as he wriggles around, feeling his bladder filling up by the minute. He crosses his legs tightly.

"G-Good..."

Knuckles looks at the diaper and sighs again before untaping it.

"I'm surprised that you're not putting this on me..."

Sonic continues to wriggle around as Knuckles attempts to put it on and soon notices Sonic's wriggling.

"Hey, are you alright?"

Sonic shows his teeth and continues to smile nervously as he crosses his legs tighter.

"Y-yeah! Never better! W-Why do you ask?"

Knuckles smirks as he notices Sonic crossing his legs.

"Gotta go potty, Sonic~?"

"Eh?! N-no!!"

Knuckles chuckles as he watches Sonic continue to wriggle around.

"Sure looks like it to me~ If you're gonna be making me wear a diaper then you should feel comfortable with using it in front of me."

Sonic blushes more as he feels a bit of urine trickle out of his penis. 

"Y-yeah, I guess so... I just... don't like people watching me when I use it. C-Could you use it with me? L-Like at the same time?"

Knuckles gives him a confused expression.

"You... want me to use my diaper the same time as you use yours?"

Sonic nods nervously and watches as Knuckles pulls down his pants and struggles to get his diaper on.

"Fine, but how do you even put this thing on?"

The blue blur sighs a bit as he stands up, still attempting to hold in his urine and hobbles over to Knuckles, helping him to put it on.

"There you g-- oh boy, I've REALLY gotta go now!!"

Knuckles nods and rubs a hand against his bruise, attempting to get his bladder to release once again. He grits a teeth a bit as he feels urine already beginning to dribble out.

Sonic, who was now on the brink of bursting, grits his teeth also and soon opens his eyes widely as he feels his bladder not able to hold on anymore. A few seconds later, Sonic half-closes his eyes and sticks out his tongue, moaning softly, feeling his penis shoot out a thick stream of urine into his diaper.

"Ohhhh yeah... that's the stuff."

Knuckles looks over and chuckles slightly as he notices Sonic lay on his back on the arm of the couch and open his legs widely, allowing his urine stream to dribble down to his bottom as well as soak the bottom of his padding.

"Ohhh, this feels so amazing~"

Knuckles smirks a bit as he rubs his bruise once again. A few seconds later, he blushes brightly as he feels his penis shoot out a stream. The stream hits the front of his diaper and splashes back onto his penis, causing him to moan slightly.

The blue blur smiles in ecstasy and soon looks over to Knuckles.

"How does it feel for you, Knuckles~?"

The young echidna was very unsure about the new feeling but he soon turns to Sonic and chuckles nervously.

"Eh, it feels... nice. P-Pretty warm too..."

Sonic laughs cutely once again as he continues to gush urine into his diaper.

"Come on Knuckles, don't be shy... it feels really good, doesn't it~?"

Knuckles looks into the front of his diaper and soon sighs in bliss as he feels his stream become thicker. He smirks back at Sonic and moans as the urine splatters against his penis, soaking it.

"Yeah... not going to lie, Sonic. It's the best feeling I've ever had~"

Sonic lets out another laugh as he covers his mouth. He looks down into the front of his diaper and wags his tail as his urine stream decreases in flow. He lifts his leg and sighs in relief as his penis releases a few spurts before stopping completely. He reaches into his diaper and shakes his penis as he stays laid down and sighs loudly, feeling a urine puddle gather around his ass.

"Oh, that really hit the spot~"

Knuckles smirks as he looks back to Sonic then back to his penis. He watches as his stream soon begins to die down too. He lifts a leg and sticks out his tongue as his penis releases a long and thick spurt, which hits the crotch of the diaper before coming to a complete stop. He reaches his hand into the diaper and soon shakes his penis also before sitting down next to Sonic. 

"Hey, Sonic?"

"Yeah, Knux?"

"Thanks... for the diaper and everything, I mean."

Sonic smiles and gives a thumbs up.

"No problem, Knux! Let me know if you want any more, I've always got some to spare..."

Knuckles smirks as he soon wraps his arms around Sonic, pulling him into a hug.

"I will~"

Sonic purrs and closes his eyes as he snuggles into the young echidna's chest. Knuckles holds him close and chuckles from the crinkling sound of both his and Sonic's diapers.