One sunny morning on Slowpoke Isle, a young fox, named Tails, groans in frustration as he tinkers on his latest invention in his workshop. After working on the invention for many hours, Tails sighs and uses his arm to wipe off the sweat on his forehead.

"Darn... this doesn't seem to be working. What am I doing wrong?"

As the young kitsune leans back against his workbench, he lets out another frustrated sigh. He was about to close his eyes when suddenly he notices a flash of blue zoom past the door of his workshop. He gasps a bit but soon smiles as he notices a familiar figure stop in front of him.

"Hey Tails, Eggman's not doing anything at the moment... and I'm bored."

The figure was none other than Sonic the Hedgehog. The male had his arms crossed and was tapping his foot against the ground in an impatient manner. Tails sighs and smiles as he looks up at Sonic.

"Me too... this stupid invention isn't working."

Sonic smiles and sits next to Tails, wrapping an arm around him.

"Aw, don't worry, buddy... you'll be able to fix it!"

Tails smiles and wags his tails.

"Thanks, Sonic."

The blue blur smiles as he stands up and walks over to a small refrigerator. He opens it and takes out two large cans of soda. 

"Maybe ya just need a drink or something... here!"

Tails looks up and catches the soda can as Sonic throws it over to him. He smiles as he pops the top of the can and begins to sip.

"Thanks, I guess I do need a break..."

Sonic chuckles a bit as he pops the top off his can before taking a long sip. He sits back down next to Tails and sighs happily as lets out a small belch.

"Ahh... that's a good soda!"

Tails giggles a bit and admires the soda can before looking over to Sonic.

"Sure is, I always love these ones!"

Sonic chuckles as he takes another sip. He licks his lips then looks over to Tails, smirking a bit as Tails lets out a belch also.

"Hey Tails... I bet I can drink more than you~"

The young kitsune takes another sip before smirking up at Sonic.

"Oh? Is that a challenge~?"

Sonic continues to smirk as he nudges Tails' shoulder a bit.

"Maybe~"

"Then I accept!"

Sonic smirks as he turns to the mini refrigerator and takes out a couple more soda cans. He throws one to Tails and pops out his can, gulping it down. Tails gulps down his second can also and sighs as he throws it into his trashcan nearby.

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Around 10 minutes and 10 soda cans later, Sonic and Tails both slump onto Tails' workbench and groan with smiles on their faces. Sonic lets out a loud belch and sighs.

"Ah... that really hit the spot."

Tails places a hand on his belly before letting out a loud belch also. He then leans back and closes his eyes. 

"Sure did..."

Sonic chuckles a bit and looks over to Tails, holding out a hand.

"Call it a draw, buddy?"

Tails smiles to Sonic and places his hand into Sonic's, giving him a high five.

"Sure... I don't feel thirsty anymore!"

After a few minutes, Sonic opens his eyes widely and gulps a bit as he feels his bladder fill up every second. He jigs his leg a bit and smiles nervously to Tails before crossing his legs a bit.

"H-hey Tails? M-maybe we should this again sometime..."

Tails, who hadn't noticed Sonic crossing his legs, grits his teeth and smiles nervously also as his bladder rapidly fills. 

"Y-yeah, sure!"

Sonic, who had notices Tails' desperation, lowers his ears slightly and looks over to Tails' toilet cubicle. He then looks at Tails and stands up before limping over to the cubicle.

"B-bathroom!"

Tails looks over as Sonic limps over to the bathroom and soon stands up and quickly stumbles behind him, a hand between his legs.

"S-Sonic, wait for me!"

Sonic, who was stood in front of the toilet, looks back as Tails stumbles over to his position.

"Come on, buddy... you can make it!"

"C-coming!"

Once Tails arrives, he whines a bit as Sonic takes up most of the room.

"Sonic, make some space for me, please!"

The blue blur moves over a bit as he watches Tails stand next to him.

"Sorry, buddy!"

After a few seconds, Tails continues to wriggle around as he pushes a section of fur away from his crotch. His orange-furred penis emerges and Tails gently wraps his fingers around it, aiming it into the toilet bowl. 

"I-I'm gonna explode!!"

Sonic performs the same action and aims his bigger blue-furred penis into the water inside the toilet. He then looks over to Tails and watches as he begins to urinate.

Tails throws his head back and sighs in relief as a thick yellow stream shoots out of his penis and splashes into the water. 

"Ahhh, yesssss... that's goood~"

Sonic smirks a bit and soon closes his eyes. He inhales then puts his hands on his waist, allowing a rapid stream to shoot out of his penis and splash into the water also. He smiles goofily and wags his tail as he hears the sound of his and Tails' piss streams hitting the water. He then throws his head back also and sticks out his tongue.

"Ohhh, this feels SO good, little buddy..."

Tails giggles a bit as he continues to aim and piss into the water. He sighs once again and soon smiles as he looks down at his and Sonic's piss streams. Sonic's stream was much faster than his but Tails felt proud that his penis was shooting out multiple streams that combined together. He then looks up at Sonic, noticing that his eyes were closed...

The young kitsune then smirks as he takes a peek at Sonic's penis. He opens his eyes widely and blushes as he notices the size of Sonic's penis compared to his own. He also wags his tails in an impressed way.

"W-whoa!"

Sonic, who had hears Tails' comment, opens his eyes and looks at Tails with a confused expression as his piss continues to shoot out of his penis.

"Hmm? Whoa, what?"

Tails, who was now blushing a darker shade of red, turns away from Sonic and looks down at his penis, pretending to be concentrating on aiming.

"Uh... I... I was just saying 'whoa!'"

Sonic notices Tails' blush and smirks a bit, gently nudging Tails' shoulder with his arm.

"Come on, buddy... tell me the truth~"

Tails stays silent for a few seconds but soon sighs before turning back to Sonic.

"Alright, fine... I was just saying whoa because... well... your penis is... pretty big, compared to mine."

Sonic continues to smirk and soon chuckles a bit.

"Somehow I knew that was what you were thinking... you were looking at my cock after all!"

"Eheh..."

Tails giggles nervously and gasps a bit as Sonic soon uses a hand to ruffle his bangs. 

"Thanks for the compliment, little buddy! Though I always thought your cock was really cute~"

"R-really?"

"Of course! Cute, just like you, little buddy~"

Tails giggles once again from the compliment and nuzzles his nose against Sonic's, in a friendly way. He then looks down at Sonic's still-pissing penis and watches as his stream begins to die down a bit.

"Thanks, Sonic! But by the looks of it, you won the contest! That's quite a gusher!"

Sonic chuckles and winks.

"You know me, buddy... I AIM to impress!"

Tails giggles from the pun and watches as his stream comes to a stop. He sighs happily as a few drops of urine drip off his tip and then shakes himself off.

"Much better..."

Sonic chuckles a bit as his stream begins to die down. As his stream finally stops, Sonic smiles as his penis spurts out a few streams of piss. He then shakes himself also and turns to Sonic.

"You said it, buddy... I feel like I just pissed out a whole litre!"

Tails giggles and watches as Sonic flushes the toilet. 

"Me too, Sonic! That was fun though..."

"Sure was~!"

Sonic gives Tails a noogie and Tails giggles, trying to break free.

"H-hey, cut it out~! I'm not a kid anymore..."

Sonic smirks a bit as he runs off.

"Yes, you are~"

Tails smirks as he flies off after Sonic.

"Am not!"