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Chapter 31
by
Willow Tindersmith
What outfit are we putting on?
Digging up old scraps
Kathryn interrupts my relaxation by rolling us out of bed. Lying down on our stomach, she starts fishing around between grimy Ikea moving boxes filled with who knows what junk she keeps under there.
You seem to know exactly what you are looking for. Do I have to be afraid?
Trust me, you'll like this. I haven't put this on in years, but it should be-- *stretch* --exactly the thing we need right now. She's gotten hold of a weathered plastic bag bearing the logo of Carla's Collection, the thrift shop two blocks down the road. Sitting back up on the bed, we have a look inside and initially have to suppress a coughing fit from the collected dust. On the second glance, there is a cheap looking costume inside the bag. It consists of a thin black hairband with two small red plastic horns mounted on top, a trashy looking black corset and miniskirt, and a red plastic clip-on demon tail with a spade at the end.
Wow, I wouldn't have pegged you as the kind of girl to wear that. What was the occasion?
I feel a blush coming over my cheeks. I was sixteen and my high school friends Tara and Rose and I went to SFCon. This was my con outfit because I lost a bet against Tara. I remember seeing Kate Mulgrew and being too embarassed to ask her for a autograph. Her body language feels like she wants to sink into the ground.
I turn the corset over in my hands. It's small and black and glossy and plasticky, and it looks like it laces up at the back. I'm impressed this tiny thing even fit you to be honest. How is a person even supposed to put that on?
Tara helped me out with it. She was relieved she didn't have to go as Seven of Nine. Kathryn chuckles. Also I had to stuff my bra and it still looked loose on top and hurt at the waist. Can't tell you why I even kept the thing.
So how do you propose we'll get this on? You can't exactly give me another pair of hands, you know?
"Ahem."
We turn around quickly, startled. Jen, our succubus friend from the Custom Girls! QA department sits cross-legged behind us, on the other side of the bed. She's lasciviously stroking between the legs of Kathryn's motionless body. "We're currently working on a feature that lets you make use of an abandoned body, but it hasn't been pushed to production yet. Would you like me to lend you a hand?" She grins and gives a little flourish with her hand coated in Kathryn's girl juices.
Sure, that would be very-- um... Don't just think it, say it! "Sure, that would be very helpful if you don't mind..."
"Oh I don't mind at all, quite the contrary!" She smiles and gesticulates toward Kathryn's body in a 'come hither' motion. It wakes and sits up, its eyes looking grey and empty. She grabs it by a limp hand, pulls it towards her in an intimate hug, and plants a wet, tonguey kiss on its lips.
After some idle moaning and groping, Jen's figure starts to become blurry around the edges and she seems to melt into the passive body underneath her. Suddenly, not-Kathryn gasps and flutters her eyes, which seem to emit the same pinkish-purple glow I've seen in my own eyes in the mirror earlier. She gives her body a good groping all over, and throws me a look that manages to be much sultrier than anything I've ever seen from Kathryn herself. "Mmmm, this is perfect. It's been quite some time since I've taken over a mortal body. I love what you've done with it, darling!"
"Umm, you're welcome?" This time it's Kathryn who speaks up with my voice.
Jen extends Kathryn's hand towards the costume I'm still holding on to. "Come on, give me this and stand in front of the mirror. You'll want to have a good look at yourself putting this on." She throws me a scalding hot wink.
I comply, unable to stop my heart from climbing out of my rib cage. Holy crap, this is really happening! As I step in front of the full-length bathroom mirror, my heart flies another loop-de-loop. Why hasn't anyone told me how HOT I am?
Are you feeling this too? I'm getting wet just seeing us in the mirror!
We hear a giggle from the opening bathroom door. "Seems like someone just discovered the effect of the Curse of Narcissus! And that's from seeing yourself with a mismatched body, imagine how it'll be once I'm done putting this on you!" Unable to tear my eyes from the mirror, I vaguely see Kathryn Jen waggle the bag with the costume in the background.
She takes out the corset and gives it a good shake. Was it that nice and leathery before? And surely the cups weren't that large, were they? As she wraps it around my stomach, I immediately feel a sensation as if a hundred hands were massaging me. My skin contracts, pushing all the unnecessary fatty tissue out of the way. Some of it is bubbling up and filling up the generous cups, while the rest is migrating to my posterior. Jen takes the laces into one hand and playfully smacks my plumping butt with the other. "Look at it, it's getting so thicc!" If I didn't know better, I could have believed it was Kathryn saying that herself instead of a demon in her body.
As she tightens the laces down my back, I struggle to control my breathing. It feels like my whole body is being squeezed, and a few deep moans escape my throat as I watch my eye level descend in the mirror. "Can't have those manly sounds coming out of that cute body", Jen says behind me and I feel Kathryn's slender hand caressing my throat. The tightening feeling pops up in my throat and spreads across my face as I hear my moans getting higher and breathier. In the mirror, I can see my beard stubble recede and the outline of my chin soften. It doesn't take long for my whole face to realign until a smoking hot woman looks me in the eyes from the mirror. Well, another one, because there was one behind me the whole time.
That other woman is now bending down to the costume bag and handing me the miniskirt. "Pull it up slowly and enjoy it."
I do as she commands, reveling in the sensations of my legs shortening and thinning along the way. I had started this being half a head taller than Kathryn, now my eyes are level with her cute nose as she smiles at me in the mirror.
She rustles in the bag again and hands me the hairband. "Time to complete your new look. I promise you'll love it!"
I swallow and slide the hairband into place on top of my head. There is a brief pinching sensation on my temples as my fingers lose their grip on the plastic, then a comfortable warmth is spreading out from there. In the mirror I can see two small red horns extending directly from my skin on top of my forehead, with a dark reddish hue slowly spreading outward from them. At the same time, my short brown hair is growing and darkening, spreading over my shoulders and down my back. Seconds later it has turned pitch black. Two tresses fall onto my reddening breasts, strategically positioned so they barely cover the darkening areolae.
By now, my whole body is suffused with the spreading warmth and I'm exploring every exposed square inch with my newly slender hands, feeling supple, yielding flesh everywhere I go. Jen joins me in my exploration, massaging my back and going lower and lower, until--
"Ow!" There is another brief pinch right above my butt, and now a strange sensation is extending from there... wait, I have a tail! Concentrating on the new appendage, the sensation quickly gains definition and soon I can feel its whole length as it whips back and forth. I concentrate again trying to get it to move how I want, and I manage to extend its tip down to ground level, then bring it back up to caress the top of my soft boobs.
I can't take it anymore after all that stimulation. I turn around to Jen and put her hands on my chest. She takes the cue and starts massaging my boobs and rubbing my nipples through the sheer fabric. Without thinking, I lean in and pull Kathryn's lips close to mine. She tastes amazing, like licking ice cream in the middle of a field of flowers. Suddenly she gasps and jerks her head away from me. A flash of pink light emanating from her eyes illuminates the bathroom briefly, then suddenly Jen stands beside us again in her own body.
Kathryn is the first to find her voice again. "Wow, what a ride. I kinda wanna try on that costume for myself now!"
Jen chuckles. "You're gonna have a hard time detaching those horns and the tail." She demonstratively grabs on to one of my horns and waggles her hand, showing me an erogenous zone I didn't know I had and making me moan again in pleasure.
"Don't stop, keep playing with my horns, ohhhh yessssss" Waves of pleasure are washing over me, bouncing around inside me until they end up focused between my legs. I swiftly undo the button on my miniskirt and **** Kathryn's head down there. She yelps in surprise, but wastes no time diving her tongue between my folds.
"Oh, you're in for a treat now, that's one of the features of her Mystery Kiss", Jen smiles knowingly.
Her words barely register in my mind as the world outside my womanhood ceases to exist. The only thing remaining is a small canyon inside a red landscape, and a heavenly tongue mapping out every surface detail. Time becomes meaningless as the pleasure continues to build, and build, and build, and build... until it doesn't. The world is created anew from a big bang of sensation, flooding through my body and Kathryn's in equal measures. Not even Jen, who is still touching my horns, is safe from the wave of pleasure spilling out of me, reaching climax only seconds after us.
What feels like an eternity later, I'm back in my costume, Kathryn is in her casual Star Trek clothes, and we're back to sitting on the bed together.
"So am I a succubus now? Why am I not grey like you? You don't even have a tail!"
"It's not that simple. The One Fit Sizes All customization together with the costume made you into the costume designer's version of a succubus, which is different from a real one since they've obviously never seen one of us in real life. So you don't get our powers, I'm afraid. Not directly, anyway." Jen points at my phone and winks.
"And it doesn't matter that I'm red and have horns and a tail, right? People will just accept it?"
"As long as the Awareness options for Kathryn's One Fit Sizes All and Mystery Kiss are turned off, you're fine. Oh and by the way, you might want to check the app. You're a girl now, which means..."
...which means?
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Custom Girls
Involuntary sluts
An App that can women to follow rules of behavior against their will.
Updated on Jun 9, 2026
by duduvar
Created on Aug 21, 2020
by duduvar
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