Twinkle Park Panic: A Sonic TG Story by SanicTG

 

Here's my next story, set in Sonic Adventure's Twinkle Park! This idea has been floating around in my head for a while, but it took me a while to figure out how Sonic would transform in this one. But anyways I hope you enjoy! As usual, lewdness and TGTF shenanigans will ensue. Read at your own discretion. Adults only! 18+



Sonic had recently been invited to a date with Amy Rose. Sonic wasn’t opposed to this but he wasn’t really sure how to respond to Amy’s advances. The two had been friends since Sonic had saved Amy from his metallic doppelganger years ago, and they had created a strong bond since then. Now that they were older, Sonic felt like they could’ve been something more, but wasn’t sure how to tell Amy about it.

Amy had asked Sonic to meet her at Twinkle Park, an amusement park that was located in Station Square, a location all too familiar to Sonic and his friends. They had quarreled with an ancient god, Chaos, along with Dr. Eggman who had attempted to harness Chaos’ power to no avail. The city had been demolished by Chaos, but had since been rebuilt in the following years. Sonic set out for the seaside city, eager to see how it had changed. It was then that Sonic hit a roadblock. Or the sea, rather. As he flailed to the shore, Sonic remembered the city had to be reached by train, so he took a shortcut to the Mystic Ruins and got onto the train.

Upon reaching his destination, Sonic tore out of the train station and ran out to greet the open air. He inhaled deeply, taking in the sights and sounds of the city, along with the beach nearby. From the station Sonic could see the entrance to the Emerald Coast, a series of islands he had previously trekked through in order to save Tails from his Chaos Emerald-powered plane, which had crashed. Sonic chuckled to himself, proud of the young fox and his accomplishments. He started to remember more memories of the city when suddenly a yell shook him from his thoughts.

“Oh, Sonic!!!” Amy Rose came trudging across the street towards him. “Don’t tell me you’re having second thoughts?” She asked as she skidded to a halt in front of him.

“Hi Ames.” He smiled. “Sorry I took a minute, had to take the train.” He gestured to the station behind him.

“Oh! Here I was thinking you were standing me up…” She blushed, kicking at the ground sheepishly.

“Wouldn’t dream of it! Now, do you want to have a look around, or…?” Sonic asked.

“No way! Let’s get down to business!” Amy took Sonic’s hand, dashing to the entrance into Twinkle Park.

The park was accessed by a small elevator located above an automatic toll booth. Sonic caught sight of a familiar monitor that read “Cute couples get in free!”. Amy dragged Sonic into the elevator, which began to rise up to the walkway into the park. The automated system had deemed the two hedgehogs a cute couple, hence Amy skipping the payment process. As they ascended, Amy started with a question.

“So… what have you been up to? Other than the whole saving the world thing?’

“Well, I’ve been helping Tails install a bunch of tech and stuff into Vanilla and Cream’s house. He wanted to protect them from any Badnik attacks.”

“That’s great!” She replied. “As for me, I bought some new dresses, and…” Sonic tuned her out, not really interested in Amy’s girly talk. “...Sonic? Are you even listening to me?”

“Y-yeah…” Sonic caught Amy’s gaze. She looked like she was about to spew fire from her mouth. “You bought a dress, and…”

“And? Ugh, why do I even bother… You get to do all the hero stuff, and I’m stuck here in the city…” She sighed. Sonic sensed her sadness.

“I’m sorry Amy. Guess I’ve been too caught up with the hero biz. You invited me for this, so let’s do this for us, okay?”

Amy looked up. She sniffled slightly. “Okay. For us.” 

As the elevator reached its destination, the two hedgehogs took the walkway which led to two paths into the park. One led to the bumper cars and race track, while the other led to the rides and games.

“Where to first?” Sonic asked. “I want to get to racing, but what do you want to do?”

“Let’s play some carnival games!” Amy shouted. “After all, doesn’t a girl like me deserve all the prizes in the world?” She asked, leaning into Sonic. 

“You bet.” He winked.

After a marathon of every game in the park…

Sonic stumbled, carefully balancing a mountain of stuffed animals in his arms. He had won every single game for Amy, and was down to his last stack of rings. Amy ran ahead of him, checking out every concession stand and small attraction throughout the park.

I gotta take a break… Sonic thought. He caught sight of an open door that read “Cast Members Only”. Figuring he could just hide in a breakroom or something, Sonic gently set down the pile of toys and ran off as quietly as he could. 

“Look Sonic! They have a Tunnel of Love…” She clasped her hands together before turning around to face Sonic. She saw the pile of toys. “Sonic?” She hurriedly tossed them aside, hoping to find Sonic hiding underneath, but the blue hedgehog wasn’t there. “SONIC T. HEDGEHOG, YOU GET YOUR POINTY BUTT BACK HERE!!!” She cried.

Meanwhile, Sonic had been exploring the cast member’s building. He found a dressing room and dove inside. Flicking the lightswitch on, he was greeted by rows upon rows of medieval costumes, matching the park’s castle theme. He saw knights, which gave him a laugh, remembering his times fighting King Arthur with Caliburn. He also saw a few princess dresses, not unlike a certain princess from Soleanna he couldn’t remember the name of. Suddenly he heard footsteps. Not wanting to get caught, Sonic frantically searched for a hiding place. He caught sight of a strange pod which was at the back of the room.

“It’ll have to do!” He cried before jumping inside. Shrouded in darkness, Sonic could hear someone outside the pod. This was a lowly janitor, sweeping up dust bunnies and placing costumes back on their racks. He noticed the Cast Member Auto-Dresser was online, so he flicked a lever on the side. This set it into Maintenance Mode, which would install updates and resolve any other issues. He walked out of the room, whistling a tune.

Inside the machine, Sonic grasped around, trying to find a way to get the lights on in the machine. He found a large button and pressed it. Light filled the chamber and Sonic was greeted by various segmented metallic compartments embedded into the walls around him. Suddenly a pink light shone down from the top of the pod.

“User detected. Scanning… Warning. Auto-Dresser is in Maintenance Mode. Any changes made to the user during the process will not be reversible until after business hours.” A robotic female voice announced.

Sonic tried to make sense of the situation. He was in some sort of futuristic closet, and it was capable of making “changes” to him, whatever that meant.

“Scan complete. Error. User is not in cast member database. Attempting to restore last user’s presets… Found. Welcome, Princess Blossom.”

“Oh this is so not good!” Sonic said aloud. Not only did this machine not recognize him, it thought he was a girl! “This is a mistake, I’m Sonic! I’m a guy!”

“My my, Miss Blossom, your parameters do not match your last session. Allow me to restore you to your previous self.” A series of mechanical limbs appeared from the sides of the machine, restraining Sonic and pulling him spread eagle. 

“Let me go!” Sonic cried. 

“I cannot do that, Miss Blossom. Allow me to remove these temporary garments while I prepare the decontamination procedure.” The machine carefully removed Sonic’s gloves and shoes, pulling them away into a hidden compartment. “I will also disable any vocal commands given during the process, so as to not further disfigure yourself. Deploying vocal muter.” 

The machine produced a small purple device, and placed it on Sonic’s neck, below his chin. It sealed against it with a small hiss, and a green light appeared on the device’s display. Sonic tried to cry out, but found he could hardly speak! It was as if the device had turned his voice down like the volume on a TV.

“Beginning decontamination procedure. This is necessary to remove any contaminants or viruses obtained during this strange transformation you’ve gone through.” A small showerhead appeared above Sonic. It powered on, dousing him with a watery substance that smelled of flowers. Sonic groaned, realizing he still had some control over his voice. Next, more arms appeared, carrying sponges. They scrubbed Sonic down, leaving him squeaky clean. An industrial dryer opened below him, blowing a strong breeze against him until he was bone dry. His quills hung heavily against his back, giving the appearance of long hair.

“Now that that’s out of the way, we can start to restore your former body. I’ve prepared a body molding regimen that will change your body gradually until you’re as close to your programmed parameters as you can be. Deploying body shapers.”

Two plates sealed around Sonic’s waist and began to compress, shrinking his frame down until he had an hourglass figure. Sonic wheezed as the machine clung tightly to his body. His chest and butt bloated slightly, due to the machine siphoning the excess mass from his waist. Next two long metallic sleeves covered his arms, shoulders and hands. The sleeves let out a pneumatic hiss as the mechanisms inside contorted and molded Sonic’s arms to be more dainty and feminine. His hands bent irregularly, shrinking while his fingernails became more well groomed and manicured.

Sonic panted, the changes taking their toll. Suddenly a large ring sealed around his hips, covering his thighs and groin. The device began to heat up, Sonic’s hips and thighs suddenly swelling with fat. He yelped as they grew, finally settling in place with a hefty jiggle. Sonic sighed, knowing he’d have a hard time running with his curvy figure. Afterwards, two more sleeves like the ones that were on his arms covered his legs, sealing shut. They hummed and vibrated, making Sonic’s legs more lean and trim. His feet shrank to match, becoming arched to fit into feminine footwear. Soon after the machines removed themselves, allowing Sonic a better view at his newly changed body. He sighed, unprepared as to what would happen next. 

“Basic body parameters restored. You’re looking more like your old self Miss Blossom. Initiating phase 2: Sickness for the thicc-ness.” The robotic voice announced.

Sonic struggled with all his might as two large transparent domes sealed against his chest. He felt a sudden sucking sensation as a rubbery sheet inside the devices molded against the contours of his chest. The domes began to heat up, sweat trickling down Sonic’s body. A loud hum emanated from the devices as they began to pull, slowly enlarging his chest. Sonic let out a slight moan as his chest grew in size, two plump spheres beginning to form that he recognized all too well. He was growing boobs! 

“I’ve taken the liberty of bumping you up a few cup sizes Miss Blossom. The park managers have stated it will bring in more customers.” The voice chimed in.

Sonic looked on in awe and arousal as his breasts began to form, the domes pulling off his chest slightly as the newly grown masses spilled out the sides. Eventually with one last tug, he was left with a pair of supple breasts. Sonic’s face reddened, the sensitivity of the growths driving him mad. The domes pulled away with a pop, his breasts slapping against him. His groin began to swell with excitement at the sight of his newly grown assets. Next, a similar pair of domes latched onto his butt, sealing against them with the rubbery sheet like before. Sonic cringed as he felt a huge mass beginning to form.

“Loading preset: Peachy Princess.” The voice announced, the domes beginning the shaping process. Fat began to pool into Sonic’s rear, moisture beginning to form at the edges of the domes. Sonic felt like he was going to melt, the heat growing from his butt was too much to handle. Two jiggling masses appeared from within the domes, meticulously sculpted to perfection. Sonic let out a loud moan as the domes heaved, leaving him with a bubble butt that would surely shake with every step he took. The domes pulled away, leaving Sonic one THICC hedgehog.

“Thickening complete. My scans indicate two areas in need of reconstruction. I’ve also detected a strange growth between your legs, but first allow me to restore your voice to its proper tone.” 

The device stuck to Sonic’s neck began to vibrate, seemingly shifting his vocal cords around. Sonic began to moan involuntarily, his voice changing from a low boyish growl to a breathy purr. 

“This is so not cool!” He yelped, realizing he not only had control of his voice, but it was now that of a woman’s. He grumbled to himself, not used to this level of femininity. A robotic arm pulled the device from his neck, leaving a small indent from where it rested. 

“Vocal parameters are back to normal! Before we address that strange protrusion you’ve grown, I must prioritize restoring your facial region to its beautiful self. Initiating sequence.”

Sonic squirmed as a variety of devices snaked down towards his face. He tried to move his head out of the way but it was held in place by a series of plates that covered his spines. He had no choice but to watch as a plate shaped like a pair of lips suctioned to his mouth, pulling his lips forward. He groaned, feeling a small prick in both of his lips. They swelled rapidly, becoming two pillowy masses. Soon after a mechanical eye mask covered his face, shrouding his vision in darkness.

Sonic frantically glanced around at the interior of the mask. Suddenly two miniature arms grabbed at his eyelids, forcing them shut. Tears welled in Sonic’s eyes, but the machine simply ignored his discomfort. A set of mascara brushes combed through his lashes, making them more light and fluttery. Sonic could do nothing but groan uncomfortably, his new feminine voice making every grunt and moan sound ten times more seductive than he wanted.

Meanwhile at the back of his head, the machine deployed a series of arms and devices that got to work styling Sonic’s hair. It started by cleaning it with a shampoo that made his spines flow downward, giving the appearance of long flowing hair. After rinsing and drying everything, the arms brought out curling irons that effortlessly styled every tress and wisp of hair until it was perfectly wavy. Sonic caught a whiff of feminine fragrance wafting from the various plates covering his head, which drove his senses crazy. Soon after the plates all pulled away with a huge burst of steam, covering Sonic’s head in a cloud of girly perfume. His eyelids drooped heavily as the cloud cleared.

“There that’s much better, Miss Blossom! Before I continue with the beautification procedure, I must tackle this mass swelling between your legs, it is highly irregular.” The machine insisted.

“N-no! You can’t!” Sonic cried. The machine ignored him once more and continued with its programming. A whirr alerted Sonic’s attention to his groin, which was on full display and standing at attention. A hand carrying a bottle of lube approached his crotch and dispensed it into a pair of awaiting hands. They began to slather the lube up and down his shaft, coating it completely. The hands began to stroke, Sonic shivering in their cold grasp. He prepared himself for the best and the worst of what was about to happen.

The hands skillfully flexed up and down his shaft, sapping the pleasure from him. He groaned as their pace began to quicken, becoming a blur in Sonic’s vision. A deep blush began to form on his face, his eyes rolling around wildly. The hands gripped and tugged, jerking him off with expert ability.

“Mmm…” He moaned, his sultry voice purring. He felt a heavy warmth in his crotch as the hands continued, Sonic practically melting in their grasp. They pumped even faster, a bead of pre forming on his tip. The hands began to twist around, changing their configuration. Two of the hands even went up to Sonic’s chest, groping and playing around with his breasts. He moaned passionately, not wanting the machine to stop but to let him release. His eyes fluttered, pleasure overtaking him.

“Ahhhnn~!!!” He cried. His shaft twitched slightly before releasing, fluid spurting everywhere. Sonic bucked his hips, riding the high of his sudden orgasm. He panted heavily, slumping forward in the machine’s grasp. The arms pleasuring him ceased, their function complete.

“Sample retrieved. I’ve reduced the swelling to the best of my abilities. Commencing ‘Womanizer’ procedure.” A large spherical device latched onto Sonic’s deflated groin, encasing it completely. He let out an involuntary moan as he felt machinery grasping at his genitals. A tube encased his length, nanomachines inside the device shrinking it down and beginning to push it inward. The same went for his balls, suddenly shooting upwards into his body. The tube pressed down, cramming everything inside. Sonic’s eyes crossed, pleasure coursing through him once more. After a sudden pop the sphere pulled away, revealing a slit and a pair of plump lips between his legs. A strand of fluid clung to the spherical device as it pulled away, an unfamiliar wetness forming between Sonic’s legs. She gasped slightly, before suddenly fainting.

A short time later…

“Mmm…” Sonic groaned. Her eyes fluttered open and she looked around, realizing she was still inside the machine.

“There you are Miss Blossom!” The robotic voice chimed in. “You were briefly unconscious but I stabilized your vitals while you were under. I took the liberty of cleaning you up and dressing you in your undergarments. Your sudden outburst left quite the mess…”

Sonic blushed, recalling the machine’s pleasurable acts. She glanced down at herself, noticing a lacy bra cradling her breasts. Shifting her legs around she could feel matching panties covering her sensitive parts. Upon closer inspection she realized she was also wearing a garter belt and a pair of silky white stockings. Her face reddened, the feminine garments slightly arousing her. 

“Let’s get you into your formal wear. One moment.” A flurry of pink suddenly filled Sonic’s vision, a dress being pulled over her head. When her head found the proper hole, she got a better look at herself. The dress was puffy, the shoulders rounding out her silhouette. Lace surrounded her neck, and a large window in the chest showed off her well-endowed bosom. The skirt of the dress was frilly, but still allowed her a fair bit of movement. A crown fell from the ceiling, landing perfectly on her head. Lastly the machine lifted her legs, placing a pair of bright red heels of each foot.

“Next on the agenda, we’ll get to your makeup mani-pedi. Please hold still.” A mask suddenly plastered itself to Sonic’s face, various beauty products being applied. Meanwhile a series of devices attached to her hands and feet, pampering her nails and coating them with a light pink polish. The mask removed itself and a mirror lowered in front of her face. Her reflection was nearly unrecognizable from her original self, aside from her still being a hedgehog. 

Her cheeks were rosy. Her lips were now a bright pink and coated with gloss. She also noticed a beauty mark placed on her cheek. A blink of her eyelids confirmed they were coated with eyeliner and a red eyeshadow. Her dolled up face was different, but she found she looked rather attractive. She now resembled a princess, albeit a slightly more sexualized one. The machines released her, and the voice gave a farewell before gently leading her out of the chamber.

“You’re ready to perform for the customers! Good luck out there Princess Blossom.”

Upon exiting into the dressing room, Sonic hurriedly tried to tear the garments off, but couldn’t find any zippers. She was sealed inside until the dresser was operational again. Suddenly a voice filled the room, emanating from a speaker above the vanity mirrors.

“Princess Blossom needed in Party Castle A. Please report immediately.” Sonic groaned, realizing she now had a duty as a park performer. She simply ignored the voice and attempted to leave the dressing room, but kept tripping over her heels. Suddenly someone entered the room, and Sonic’s jaw dropped. It was Amy!

“Sonic? Oh my god this is priceless! You look pretty good though.” Sonic stammered, trying to explain herself. “Your voice is different, how’d this happen? Don’t bother explaining, I have an idea. How does a girl’s night out sound?”

The End

To Be Continued? 

My DA