A little blue hedgehoglet smiles and claps his hands as he looks out of the window of Lilly's car. Lilly looks at the rear-view mirror and smiles as she notices Sonic giggling and looking out of the window.

"What are you giggling at, sweetie-pie?"

"It snowing, mama!"

Lilly giggles again before turning her head to the road again. Lilly continues to drive for around another half an hour or so before she looks back at Sonic again. She notices the little hedgehoglet wriggling around in his seat.

"Are you alright, sweetie?"

Sonic looks up at the rear-view mirror and whines as he continues to wriggle around. He shakes his head and cries out desperately as he puts his hands between his legs.

"Me gwotta gwo wee wee!!"

Lilly gasps a bit and soon looks around the road, trying to find a place to pull over. She soon notices a layby and looks back to Sonic.

"Don't worry, sweetie... I'll pull over here, ok?"

Sonic continues to wriggle around as he nods his head, frantically.

A few minutes later Lilly pulls over and unstraps her seatbelt before opening and closing the door behind her. She opens Sonic's door and unbuckles his straps before picking him up and closing the door behind them. Sonic whimpers as he tries to contain the contents of his bladder.

"Alright sweetie, just a bit longer..."

Sonic nods as Lilly walks towards some bushes on the side of the road. She pushes a few branches out of the way with her free arm and overlooks the surroundings. 

In front of Sonic and Lilly was a wide open area. There were various trees and bushes but they had been covered with a thick layer of snow. Lilly looks around continuously, making sure that they were alone before placing Sonic on the ground.

"Ok sweetie, you can go wee-wee here."

Sonic looks around before looking up at Lilly, an excited expression on his face.

"Weally? Me cwan go wee-wee wherever me want?"

Lilly smiles as she ruffles the top of his head.

"Of course sweetie... it's a wide open area and we're alone too!"

Sonic squeals a bit and soon giggles as he waddles over to a nearby tree. He quickly pulls down his trousers and diaper before holding his shirt up with his hands. He leans back a bit, allowing his tan-coloured willy to aim at the tree trunk.

Lilly smiles before looking around again. She then pulls down her trousers and underwear before holding up her skirt, revealing her slightly haired vagina. She then squats down and giggles a bit as Sonic looks back at her, looking down at her vagina.

"Mama nweed wee-wee too?"

"Yeah I do, sweetie... but I thought it would be best if we did it together. I know you don't like being on your own."

Sonic smiles back at her before looking back at the tree trunk. He closes his eyes and smiles as a thick yellow stream soon shoots out of his willy and hits the tree. He sighs as it sprays all over the trunk, melting the snow on it.

Lilly giggles as Sonic continues to sigh in relief. She looks down at her urinating vagina and smiles too as she watches the snow melt beneath her. She then looks back up at Sonic, who still had a pleasure-filled expression on his face.

"Having fun, sweetie?"

Sonic smiles and looks back as he notices Lilly's urine stream shooting into an arch-shape before hitting the ground. He blushes a bit from the sight but continues to urinate.

"Yweah mama... me hwaving fwun! Me mwaking steam!"

"Me too, sweetie!"

The little hedgehoglet giggles as he looks back, noticing steam coming from Lilly's pee stream as well as a hissing sound.

"Mama, cwan me ask you a qwuestion?"

"Sure sweetie, what is it?"

Sonic blushes a bit as he looks down at her vagina again before looking down at his willy.

"Why dwoes wour willy wook different to mwine?"

Lilly giggles.

"It's because I'm a girl and you're a boy, sweetie. I have a foo-foo and you have a willy..."

"Cwool!"

Sonic giggles as he looks down at his willy. He watches as his urine stream begins to die down and he soon shakes his willy with his hand. He turns to face Lilly and smiles proudly as he points to the mark he made on the tree trunk.

"Lwook mama, me mwade a wee-wee mark!"

"Good job, sweetie! Have you finished your wee-wee now?" 

"Nwot ywet, mama..."

Lilly smiles as she soon finishes urinating. She reaches into her pocket and gets out a packet of tissues before removing one of the tissues. She uses it to wipe her vagina before putting it on the ground and pulling up her underwear and trousers.

Sonic looks over to Lilly and soon proudly begins to urinate again. He aims his willy towards the ground and moves his hips around, making an S shape with his urine stream. He soon finishes and Lilly claps her hands as she sees the S shape in the snow.

"Now you're finished, sweetie?"

Sonic nods as he tries to pull up his trousers and diaper. Lilly giggles as Sonic struggles a bit and soon walks over before assisting him to pull up his trousers and diaper.

"Alright sweetie, let's head home..."

Sonic smiles and nods as he takes Lilly's hand into his. As the two walk towards the car, a breeze soon blows against Sonic's fur. He shivers a bit and stays still as he lets go of Lilly's hand. Lilly looks back and sees Sonic frozen in place.

"Are you ok, sweetie?"

Sonic shivers again, feeling the cold breeze hit his bladder. He soon looks up at Lilly and ignores the feeling. He nods and walks over to her before taking her hand again.

Lilly gives him a curious expression before shrugging and continuing to walk to the car. Once they arrived at the car, Sonic whimpers and begins to shiver, once again feeling a cold breeze hit his bladder. Lilly hears Sonic whimpering and soon picks him up, rubbing her hand against his back, trying to warm him up.

"You must be really cold, sweetie! Don't worry, mommy will warm you up..."

Sonic whines a bit as he holds onto Lilly, attempting to warm up. He soon whimpers again, feeling his bladder getting fuller by the second. He then squeaks in surprise as Lilly pats his back. He holds onto Lilly's shoulder and soon half-closes his eyes as he feels his bladder begin to release.

Sonic sighs happily as he feels a monster stream shoot out of his willy and hit the front of his diaper. A smile soon appears on his face and his tail begins to wag as his stream increases in speed and puddles in the bottom of his diaper.

Lilly holds the young hedgehoglet close but soon hears a loud gushing sound and looks back at him. She giggles as she notices Sonic's pleasure-filled expression.

"Good heavens, sweetie... your bladder is very full today! How does it feel?"

Sonic nuzzles into Lilly before beginning to purr a bit. 

"Really gwood, mama..."

Lilly giggles again.

"I think I can tell. Someone's gonna need a pretty big diaper change afterwards though!"

Sonic giggles and continues to smile as his urine stream puddles into his diaper and splashes up against his willy, making him feel warmer. 

After a few minutes, Sonic sighs as his stream soon dies down into a few spurts. He then stops completely and makes a small moaning sound as Lilly lifts him from her shoulder. She holds him in front of her and Sonic continues to make a pleasure-filled expression as he looks up at Lilly. 

The young female gasps as she notices Sonic's diaper sagging off him, close to falling off. She carries him over to the backseat and lays him onto it, about to remove his now-soaked diaper. She drags the changing equipment over to her before looking down at Sonic.

"Wait, mama!"

"Hmm? What's wrong, sweetie?"

Sonic looks down at his diaper before looking up shyly. 

"C-cwan me kweep it on a bit wonger?"

Lilly gives him a confused expression.

"How come, sweetie? It's almost coming off you..."

"B-bwecause it mwakes me fweel nwice and warm."

Lilly giggles and shakes her head.

"I'm sorry sweetie, but I don't want you to get a diaper rash..."

Sonic pouts and crosses his arms as Lilly takes off his diaper and puts it into a bag. She giggles at his pouting expression and begins to clean up his willy and bottom with some baby wipes before putting them into the bag too.

"Now now... don't be like that, sweetie."

Sonic continues to pout as Lilly tapes a new diaper onto him before dressing him into his clothes. She straps him back into his carseat and gently tickles his tummy.

"Ooh, who's being a grumpy-hog~?"

Sonic smiles a little and soon giggles whilst kicking his feet. 

"Nwo mama, me gwonna gwo wee-wee again!"

Lilly giggles a bit before stopping the tickling action.

"Alright sweetie, let's head home."

"Owk mama, me hwad a lot of fwun today!"

Lilly giggles as she gets into the car and looks back at Sonic.

"Me too, sweetie."