A Gift For Your Girlfriend by Vexed

Having successfully invented inanimate transformation, you decide to surprise your girlfriend by turning into a thong she'll wear. Things don't go to plan.

Categories: Young Adult 20-29, Object, Unaware, Butt, Entrapment, Odor, Scat, Watersports Characters: None
Growth: None
Shrink: None
Size Roles: F/m
Warnings: None
Challenges: None
Series: None
Chapters: 3 Completed: No Word count: 2772 Read: 52936 Published: March 29 2018 Updated: May 08 2020
Story Notes:

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1. Laid Out On Your Girlfriend's Bed by Vexed

2. Chapter 2 by Vexed

3. Chapter 3 by Vexed

Laid Out On Your Girlfriend's Bed by Vexed

You had worked on it for months: the first ever transformation pill. You'd simply swallow the pill and in exactly 5 minutes you'd transform into whatever you were thinking about. Nobody knew about what you had been working on. To celebrate your feat, you decided you would surprise your girlfriend.

You snuck into your girlfriend's house to surprise her. Swallowing the pill, you sat on her bed in wait. Her family were downstairs and she was in the shower.

Your plan was flawless. You were going to transform into the thong she left on her bed to change into after her shower. She always leaves her panties on her bedroom floor after use so there'd be plenty of space for you to transform back. You just needed 5 minutes and plenty of room to become human again. 

5 minutes passed and you suddenly transformed into a sexy black thong. Your senses felt as if they expanded to every inch of the thong. Excited, you now waited on her bed, unable to move now.

“Hey sis!” you heard her cousin, who was visiting, shout through the bathroom door to your girlfriend. “I'm going clubbing tonight and you can see my panties through my dress, could I borrow a thong of yours?” she continued, still shouting through the door.

Fear rattled through your fabric body as you heard this. Surely she'd check your girlfriend's panty drawer, rather than take the one laid out for your girlfriend, wouldn't she? 

Suddenly the door swung open and your girlfriend's cousin appeared with her panties in her hand and wearing a tight black dress. She had a stunning figure, similar to your girlfriend's. The major difference between them being your girlfriend's cousin's long black hair and her taste for dark makeup. 

Her name was Leah, you had met her before. She was sexy beyond belief to any outsider but anyone who truly knew her knew she was a slob. She looked around the room for a moment and then went straight for the drawers.

You heard the bathroom door open and you could see your girlfriend walking towards the room, wrapped in a towel. You thanked God that her cousin opted for the drawer.

You peered back over at the slightly gothic Leah. She rustled through the thongs, holding each to her body and shaking her head before placing each back inside.

Your girlfriend, unphased by her cousin being in the room, dropped her towel. She picked you up in admiration and prepared to put you on. Leah turned to face her, not paying much attention to her nakedness.

“Oh those would be perfect!” Leah said, pointing to you in your girlfriend's hands. “What? These?” your girlfriend asked, displaying them to Leah. You began to panic, you desperately tried to change back but could not as your girlfriend's hand was wrapped around you. 

“Yes they're perfect can I use them?” Leah pleaded. Your girlfriend, not really bothered by which pair she wears, shrugged and passed you to Leah.

Without hesitation, Leah hiked her dress up and slid you up her slender legs. You watched your beautiful girlfriend put on a different pair of panties as Leah claimed you as hers.

Soon, Leah pulled you up her completely. Your fabric body covered her vagina and her smelling asshole, you could feel every clench and twitch that she made in that region; consciously or not. 

Ensuring that the ass strip was deep between her cheeks, Leah began to pull her dress back down. You longingly watched your girlfriend continue to get dressed, wishing you could be with her. Your view was slowly covered by the black dress as it slid over Leah's crotch.

“Thanks!” Leah said to your girlfriend as she walked out the room. Your body grinded against her crotch as she walked. All you could see were her long legs and high heels as she strutted through the house.

The beep of a car horn was heard outside. “That's my ride!” Leah declared to your girlfriend's family. “See you all later!” She said, giving each person a hug before leaving. Leah opened the cab and climbed inside.

Chapter 2 by Vexed

The cab stopped and Leah began to climb out. You could feel her vagina grind against you as she did, you shuddered in disgust at this; you wanted your girlfriend, not her wretched cousin!

As she swung her legs around to the cab to climb out, she immodestly and accidentally flashed her panties to the world before standing. This gave you an idea of where you were as very briefly your view became more than the floor that Leah stood over.

The cab had pulled up directly outside Leah's favourite nightclub and all of her friends were awaiting her arrival. You could see their joyful faces for all of five seconds as they laughed at Leah's unladylike attempt to shuffle on her ass out of a taxi.

Soon your view was back to the floor as you watched the girl walk over to her friends, the tick of her heels hitting the concrete rattled your senses. You heard Leah throwing some jokes at the group of her friends and they all laughed along with her.

A symphony of clicking heels could be heard as the girls all strutted their way into the club. The concrete pavement became a dark but shining dancefloor. You focused on Leah’s long legs as she walked, trying not to think about the stench of her now sweating vagina or asshole. You could smell it, you could taste it, you could even hear the gurgling of her digestion and the thump of her heart beat.

The night went as expected. It felt unbearably long. You could hear the laughter, you could hear the music. Leah really began to sweat as she danced with all her friends.

Leah locked eyes with a hot guy across the room. He quickly made his way over to her. They danced together, face to face. Leah shaked her ass to the beat, her actions grinded you deeper into her..

Leah turned her back to the guy and you could suddenly see a little more than the ground as she hunched over slightly. Why was she hunching over? Your view quickly answered the question as at the level of your sight was the crotch of some guy and you could see the bulge through his pants.

It came to you like a guided missile. Leah backed up into him in response. Soon, Leah’s ass made contact with his bulge as she began to grind against it. The bulge stiffened immediately.

You’d gag if you had a mouth, the second last place you ever wanted to be was wrapped around Leah but the last place of all would be against some guys dick. The dancing (if you could call it anything other than a dry hump) was getting faster and more sexual by the second.

That’s when you felt it: a dampness. It felt like it was being absorbed by your entire being. You knew what it was, Leah was turned on. You could literally feel her vagina opening slightly and releasing the juice.

It felt like it was in your skin, your mouth, your eyes and ears all at the same time. Leah followed up the grinding by grabbing the hand of the guy and pulling him with her. You could only watch Leah’s legs rapidly move over the shining floor as she paced off the dancefloor.

Leah suddenly burst through a door and the dancefloor changed to a cream tiling. You were confused at where you were, was it a kitchen? Leah quickly burst through another door and threw her body down into a relaxed seated position, exposing herself to the guy she dragged in the tiled room.

Panic overcame you as you realised where they were. Before you, stood a man with lustful hunger in his eyes, framed by the blue walls of a bathroom stall. At the very edges of your vision, you could see Leah’s legs wide open inviting him in.

He wasted no time in hastily coming into the stall and shutting the door behind him. Sprawled across the filthy toilet, Leah pulled him in close to her and began to passionately kiss him. The moisture increased tenfold over your body.

The guy quickly whipped his penis out of his pants, it bounced against you as he did so. Leah reached down and pulled you aside, exposing her dripping vagina. She gripped his penis with her other hand and pulled it towards her.

As she lined it up, he quickly plunged it into her gaping hole. Leah gasped out in ecstasy as the girthy penis filled her up. The side of his penis scraped against your fabric body as he began to pump into Leah.

The moaning began quiet and infrequent, but quickly got out of control. You could see the pumps getting faster and faster, their moans louder and louder.

As it came to a powerful end, Leah moaned out in orgasmic bliss. Synchronized, the guy did the same. He lay on her, with his penis still inside her. Leah felt his seed fill her after his final pump. You didn’t know if he had came inside yet, you hoped not.

Sitting up a little, Leah moved her head up to him and gave him a kiss. He slid his now limp penis out of her and his cum began to quickly follow. Leah suddenly clenched and cut off the flow of his cum, keeping it inside her. She quickly grabbed you and pulled you back into place over her vagina. She locked eyes with the guy, who had watched her do this, and then patted you lightly. “Safe keeping” she said, with a smile.

She stood up beside the stranger, who was putting his dick back in his pants, and said “don’t worry, I’m on birth control”. As Leah stood up, the semen she had previously clenched inside her started to drip out of her due to both gravity and her having relaxed a little. Being a good thong you did well to absorb it as it trickled out, even if it was the worst experience of your life and you had no choice.

Leah pulled her dress down over her panties and they both exited the toilets together. It was like water torture as she walked, each step made more cum drip out of her and into you. It left a momento in the form of a white stain for what vile act you had just been in the presence of.

Leah ran over to her friends, who were finishing their drinks. “Hey Leah, we’re done here. What do you wanna do next?” one of them said to her. Still feeling the drip of the semen and the afterglow in her loins, Leah responded “lets go back to my place”. And, with that, they left the club.

Chapter 3 by Vexed

The girls quickly left the club and headed for the nearest taxi. Drunkenly, they all climbed into the vehicle and made their way to Leah’s empty home.


They soon arrived outside Leah’s and wasted no time in heading in. You were seething at this point, you felt the semen seep into your fibres as Leah sat dormant in the taxi.


Hurrying from the taxi, they ran out of the cold and into Leah’s house. “I’m gonna get some comfy clothes on” Leah began, heading towards the stairs, “all your pyjamas and sleeping stuff are in the living room, I’ll meet you guys in there!”


You felt her thighs kneading your body like a baker with dough as she climbed each step. She quickly entered her bedroom, slipped her heels off and began to shimmy her dress up off her body. Soon your vision expanded in all directions as the black dress no longer covered everywhere but down. 


You watched Leah in her wardrobe mirror as she unclipped her black bra and slid it off over her arm, leaving her totally naked apart from your conveniently matching black body wrapped around her most private of areas.


Running her hands delicately over her petite body, she admired the way you hugged her figure. You felt her fingers grip your waistband and pull you away from her body as she peered down at her stained gusset. “I guess I don’t have to worry about getting these any dirtier!” she said to herself, laughing. Like she would any thong, she uncaringly released her grip and you slapped back against her toned stomach.


You watched as she made her way towards her drawers and plucked out her favourite oversized tee, quickly throwing it over her before making her way towards her ensuite bathroom. You, a fearful spectator, forced to experience all of your senses as this notoriously unhygienic girl headed towards a bathroom with nothing in mind but her usual post-drinking release.


Leah ritualistically flipped the light on, lifted the toilet seat up, reached over to the window above and unlocked the latch. Hearing the distinct click of the latch, you immediately recognised what that meant and before you could even express your horror in a failed attempt at screaming she slid you to her knees and sat down on the porcelain.


Your view from here allowed you just enough scope to peer around the room, up at Leah, and into the toilet slightly just under her thick asscheeks. Your lack of eyelids serving only to cause you mental harm as you were about be forced to witness whatever was coming out of her, smell it, and then potentially taste and feel the remnants of whatever she doesn't fully wipe soak into you.


A powerful jet drove its way between her lips, the copious amounts of alcohol finally freeing themselves from her intoxicated body. You watched as it left her, sizzling in the water as it hit the surface with such force.


Shortly it lessened to a trickle, you prayed it just wasn’t quite time for her to… You know what… Even though the odds were definitely stacked against you. The click of the window opening still haunting you.


Almost comically, a fart burst it’s way out of her asshole; it echoed through the bowl before slowly flowing back out towards you. The odour hit you like a train as it permeated outwards and over your body. Leah slumped herself over slobbishly, her elbows pressing you into her knees as she leaned over.


The lean, acting to provide a straighter digestive path, granted Leah the bodily freedom to evacuate her bowel in a swift and efficient motion. The horrifying sound of scattering shit battered the bowl, you winced internally with each vomit-inducing splat. Like a disgusting cherry on top, Leah moaned from pleasure as the load within her finally lifted; the noise of her pleasure almost as bad as the pebbledash. 


Satisfied at her sudden emptiness, Leah reached over to grab some toilet roll. “Ah shoot!” Leah said, unphased by the predicament she now faced. “I guess they were already dirty”.


You screamed and squirmed in desperation, your mind in a state of fight or flight, but no movement or sound came. Paralysed and terrified, you observed the girl you'd grown to learn all the things you wish you'd never learn about a girl slowly raise her totally unclean body away from her throne and reach down to pull you up.


You would’ve cried if you could, screamed out for help, begged Leah to stop. However, it was all no use as the completely unaware girl pulled you firmly against her crotch. You felt the unwiped drips of pee soaking into your already semen-stained form.


Finishing the motion, Leah pulled the back strip of the thong into her asscrack, ensuring it was covering her dirty hole completely. If the smell within her ass and pussy had been bad before, this was a nightmare you’d never wish on anyone. The stinking, viscous goo coated her ass, it sinking into your soul in a way you believe you’d never truly forget, or even simply be able to wash out of your skin if you ever became human again.


She dropped her tee down over her waist and headed back into her room. Realising her ass wasn’t exactly clean, she grabbed a pair of booty shorts from her drawer, pulled them up over you in an attempt to seal in the smell. Finally prepared for the remainder of the evening, she headed downstairs to meet the girls.


The pressure from the booty shorts was unbearable. Not only did it seal you in with her stench, but it also forced your already coated body into the deepest crevices of her ass and vagina. You prayed for a miracle.

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