Girlfriend with Testing Device Ch. 13

I closed my eyes. I couldn’t watch. When I opened them, I’d be in a whole new body.

Zzzzttttt!

Oh wow. How do you describe the feeling of having a new body? It wasn’t anything like I was expecting. It wasn’t much of anything, come to think of it. Just a sudden tightness, like the clothes I was wearing were suddenly several sizes too small.

I glanced down at my dress. It was Becca’s alright, but it hadn’t looked so tight on her while she was out there. I don’t know how she managed to even get into it.

Still though, I was expecting... more? Like, you’d think trading bodies with someone would be a big deal, a unique experience. Instead it was just like having my tits squished. My breath grew heavy in anticipation as I ran a tentative hand down along Becca’s body. My new skin was hot and sensitive and so strangely familiar.

That’s when I noticed the tattoo. This wasn’t Becca’s body at all. I was wearing Becca’s dress, but this body was definitely still my body.

I stared down at the box in shock. Had it somehow read my mind? Or had I just guessed the right setting? I had needed clothes and it had given me clothes. Becca’s clothes, granted, but still. Wait, shit, if I had Becca’s clothes on, what was she wearing?

I peered out the closet door. I almost doubled over in laughter with what I saw. Becca was still dancing, but she was now completely naked apart from the monstrous strap-on dildo that was slapping aggressively against the thigh of the boy she was flirting with.

Oh my god. He was totally going for it too. Like, he was really into her. He got in close and the two of them started to grind up against each other, the dildo rubbing against his chest, poking up under his shirt with each sway of the hips. Becca turned to grind her ass against his crotch and the dildo slapped away, bouncing and swaying, waving proudly in the air before her, wild and free and with no one who seemed to find it the least bit odd.

Shit why did I find that so sexy? Like, that’s totally not even my jam and yet I just could not deny what this was doing to me. Just the idea of going around like that with no one caring, of being able to have a secret like that with everyone else being oblivious... goddamn. My head was abuzz with ideas.

But okay, one thing at a time. I was dressed now at least, even if it was in Becca’s little too-tight pixie dress. Honestly, I don’t know if I quite had the hair for it, but if there was one thing I was good at, it was looking good.

I stood up and collected myself, then stepped out of the closet, as casual, confident, and smolderingly sexy as I could.

Of course that’s about when I realized just how short my dress actually was. Walking in the thing was practically impossible without either my tits or ass spilling out everywhere. This thing had left very little to the imagination when Becca wore it, and it fit her. Still, I figured I could play it off as intentional. It was a party, right? Nothing wrong with showing a bit of skin. I just had to be discrete when I micromanaged the damn thing.

And boy did I ever make it work. The whole room turned and stared as I walked out. Heads turned, jaws dropped and dicks hardened. I flashed the crowd my sultriest smile and put some sexy extra swagger in my walk. You don’t get to stand out of the crowd unless you’re willing to put in the extra mile.

It wasn’t just guys that were staring, either. Girls were blushing as they laid eyes on me, their gaze desperately struggling not to wander down to my tits and explore my body. Was it jealousy? No, it was something more. They were getting all hot and flustered just looking. Damn, I guess I was dressed more scandalously than I’d thought.

You know what? I was okay with that. I like it when people look at my body. I’ve worked my ass off to look as good as I do, why not enjoy the experience?

Next order of business. I needed to get my stuff from upstairs.

But... shit. No, I couldn’t, could I? That girl from earlier still hadn’t come down. She and her boyfriend were probably waiting for me to come back to get my clothes so they could ambush me and take back the box. But no, it was fine. I could wait them out, right? Worse to worst, all I had left up there were some clothes, nothing irreplaceable. I learned a long time ago not to bring anything valuable to these sorts of parties. Still, I was really fond of the top I had been wearing.

I guessed my best bet was probably to wait for them to come down, then duck around behind them and grab my stuff without them noticing. A little paranoid, sure, but who knew what other kinds of weird mad-science gadgets that girl had in her back pocket? For all I knew a body-part-trading box was the least weapon in her arsenal.

The important thing was that one way or another, time was on my side, and that meant I had plenty of opportunity to try out my new toy.

I figured the living room would be as good a place as any to start. There were lots of people hanging around talking, and it wouldn’t look out of place if I was just loitering.

I love parties. I’m sure to most people a big event like this probably looks like a cacophony of people, just a sea of crowd and noise. The closer you look though, the more you start to pay attention to all the little details, and that’s when you begin to notice all the amazing little relations and interactions. Everywhere you looked, there were all these tiny human moments. It’s like suddenly, everyone is able to really connect with each other. And not just physically or socially but like, deeper down, on an emotional level too. That’s why I love this scene so much, it’s like a perfect storm of amazing human emotions.

And then there were some people who just made a mockery of the whole thing. Looks like I’d found my first target.

Her name was Maria Roberts. It was nothing personal, but that bitch had always rubbed me the wrong way. She was this total gold-digger, always showing off her expensive tastes and trying to hook up with the trust-funders. Girls like that gave girls like us a bad name.

And so of course where should she be but hitting on some portly looking pervert with a Calvin Klein shirt and a watch that probably cost more than his tuition. I don’t want to get all judgemental or anything, but I think it was pretty apparent that money was all the guy had going for him. This guy looked like someone had tried to dress up a bean-bag chair. He was practically cone-shaped. And like, I’m not someone to judge by looks, but going by the way he was just ogling her tits, this guy was a bit of a perv too. Not that I could blame him, Maria’s tits were on fire, and she was doing everything in her power to advertise that fact.

Okay, okay. So maybe the two were perfect for each other. Hot gold digger and rich pervert. It’s a storybook romance. But I hated the way it just undermined the whole idea of genuine human connection, how it reduced it to a business, you know?

Alright, how did I want to make this more interesting? I suppose the ironic thing there would be to make Maria the rich pervert and have him be, like, the hot gold digger, but honestly that would just give Maria all the money she’s wanted and I wasn’t prepared to be this shallow little bitch’s magic genie.

But hey, if they wanted to get into each other’s pants so badly, I could certainly help them there.

Zzzzttttt!

Oh god. I couldn’t help but laugh. It looked like they had just been IRL photoshopped or something. Maria’s pretty little head was now balancing on top of the pervert’s fat body. Big thick fat neck, big thick fat body, tiny petite head.

And she was not letting her extra bulk slow her down. She was grooving this guy’s body to the music, a sexy sensual sashay completely ruined by the way it set her belly jiggling. She ran a hand sensuously down her body, highlighting her pudgy masculine curves.

He was totally playing along too. This guy was in heaven. Honestly, I was surprised Maria’s slender neck could support his head in the best of circumstances, let alone with how he had it looming so obviously over her chest, drilling holes into what had just recently been his own fatty man boobs.

Apparently though, Maria thought that he needed an even bigger show. With a flirtatious wink, she bent down and undid the top several buttons of her shirt, exposing huge swaths of sweaty man-cleavage to the world as she hoisted a short fat leg up and straddled the plush chair the guy was sitting in. With a deft spin I was honestly shocked that body could do, she started to rub her big ugly butt all over her former pelvis, crushing the poor thing’s lap with prodigious weight in a grim parody of a lap dance. I couldn’t tell if the look in his eyes was ecstasy or agony.

It was such a ridiculous sight, and no one but me even gave them a second look, which just added to how entertaining the whole thing was. It was like a private show, just for me. God, I felt so powerful.

Okay, okay, that was fun. A little gross, but fun. What else could I do?

Ah, okay, there was an obvious one. Jack Harrison had his girlfriend Amy off in the corner. Amy’s a good kid, but a bit innocent, especially for this sort of party. She’s kind of waifish, to be honest, but she’s cute. Shame the poor thing was such a wallflower. Like, she’s sweet, but she puts up with a lot of stuff she doesn’t want to do because people keep pressuring her into it. She hated big parties, for example, but kept coming to them anyway because Jack kept bringing her.

Jack was one of those muscular gym rats with the really domineering personalities. Don’t get me wrong, that can be really hot on a guy, but he’s got a reputation as one of those guys who also just doesn’t know how to take no for an answer. More than one party has ended in drama because Jack stepped over the line - though as far as I could tell things came to a head before anything serious happened.

I guess it made sense that the two of them ended up together, even though I’m sure Jack keeps dragging her out to all these places that she doesn’t want to be. They actually make for a pretty cute couple when you see them out around campus, Jack’s infidelity aside.

The way they were going at it right now it looked like maybe Jack had had a few too many and was starting to get a little too frisky. Amy didn’t seem to want any part of it, but Jack wasn’t having any of that.

I grinned. Normally I’d feel kind of shitty watching something like that unfold and not being able to do anything about it. Today though, I could. With just the press of a button I could make things better for Amy and give Jack a taste of his own medicine. I mean, this box could change the way people acted, right? It had done so for Chastity? I just had to set it just right...

Zzzzttttt!

Like a pendulum reaching its peak and swinging back in the opposite direction, Little Amy leaned into Jack’s advances just as Jack started to retreat. He took one surprised step back, but she covered the gap with a confident step forward and It didn’t take long for her to outmaneuver him. She slapped her arm into the wall near his face, leaning into him as she pinned him into the corner.

I have never seen that look on Amy’s face before, it was smarmy and lascivious and confident. A chill ran through me as she openly ran her eyes up the body of her now-submissive boyfriend. Damn, that girl gets a little confidence in her and she looks good.

The way Jack was recoiling from her, you’d think I’d replaced her with a bear or something. He was treating her like her every action had a ton of weight and force behind it. I was actually kind of surprised at how cowed he was. I hoped this wasn’t some indication of him mistreating her. If I ever found out he’d hit her or anything I’d... well, I was sure I could think of a few choice punishments. Still, I almost felt bad for him, though if anyone deserved it, it was Jack.

In fact, as funny as the idea of little Amy looming over big Jack was, I kind of wanted to take it to the next level. Maybe I could swap their musculature around as well? Make it so that Amy actually had something backing up her new personality?

I twisted the dials on the device and fired again.

Zzzzttttt!

Wow. Damn. Amy looked great. Jack had never been a huge athlete, but Amy’s smaller form really showed off the brawn. She wasn’t exploding with muscle or anything, but you could totally tell that she was ripped even with just a glance. Her whole posture changed and everything. Her clothes were now tight enough that you could totally tell she had a six-pack going on.

Jack, meanwhile, had become this strange willowy thing. It looked like someone had taken his chest and shoulders and just deflated them. His arms were now delicate and his clothes hung loosely. Between his new lack of muscles and his submissive demeanor, he actually didn’t look half bad. There was something so wonderfully deliciously feminine about him now.

Despite the difference in height, it looked like Amy could pick jack up on his shoulder and carry him off if she wanted to. I smiled at the image. Good. That girl needed a bit of confidence, and hopefully this would help keep Jack in line too.

Fuck, they both actually looked really hot like that. I wondered what they now looked like under those ill-fitting clothes. God, I’d love to just have an hour to explore every inch of them. Uhg, it was such a shame upstairs was a total no-go zone, or else I’d probably have tried maybe inserting myself for a threesome.

I bit my lip. Geeze, I was really getting into this. What a rush.

Okay, who was next?

Over by the door, it looked like Julia Carter was having a bad time. Despite her best efforts, her date, a handsome but effete hipster, seemed to have himself a pair of wandering eyes. It seemed Whenever another girl walked past his head would pivot to follow. That’s guys though for you. Some of them are like puppies. Even with a smoking hot red-head like Julia in front of them, they couldn’t help but chase squirrels. Honestly, I’m the same way myself, so I can’t help but empathize, but at the same time it’s like... this guy could at least try to be hiding it, you know?

Anyway, Julia was starting to get... well, let’s call it impatient. She looked like she was ready to tear his head off and swear off men entirely, which was hardly fair. It’s not their fault they have such a hard time controlling their hormones.

Oooh, that was a good one actually. I could swap their hormones around. That would stop Julia’s date from chasing all the little birds that flew past, and it would teach her a lesson about how difficult some guys found it.

I pointed the box over at them and fired.

Zzzzttttt!

Goddammit! That was not at all what I was trying to do.

Before my eyes, Julia and her date had completely transformed. This wasn’t one or two features getting moved around, this was a complete transformation. If they hadn’t still been wearing the same clothes, I don’t think I’d have even known it was them.

Julia had shot up several inches and bulked out to masculine proportions while her date had done the opposite. His skin was smooth and hairless while hers had become rough and hairy. A five-o’clock shadow now crept across her face. Most surprisingly though was the complete change in the shape of their bodies. Julia’s hips and her amazing ass were gone, replaced by just the slightest hint of stomach pudge, while all of the fat on her date’s belly had decided to settle down in his hips and his now truly spectacular boobs. I couldn’t believe it, those damn things had to be bigger than Julia’s had ever been.

Even their faces had changed around, with Julia’s growing harder and more masculine while her date’s became softer and rounder. If I didn’t know better - and if it weren’t for the fact that I was pretty sure I’d see any junk she had bulging out of that tight skirt of hers - I’d say that Julia had become a dude.

I looked down at the box in surprise, then smiled as it hit me.

Of course. I’d swapped their hormones around. This is what Julia would have looked like with a lifetime of testosterone, and I guess it was the other way around for her date. Damn, they both actually looked really good. Like, don’t get me wrong, Julia was hot as a chick, but as a guy she was a total fucking stud. And as for her date, well... I mentioned how big his tits were, right?

I wondered how intact they were downstairs. Like, was Julia’s pussy operational? I’d never been fucked a guy with a pussy before, but now I couldn’t get the thought out of my head.

Completely oblivious to how badly I was checking her out, Julia’s head swiveled as a pair of cute shirtless boys walked past, holding hands. Her date, at least showing a little more patience than Julia had, just rolled his eyes and tried to hoist up his boobs to make them seem more prominent.

Well, mission accomplished, I guess.

I reclined in my seat, just kind of reveling in the moment. There was sort of a serenity about the whole situation, a kind of zen. I had reached out and changed the world and it was none the wiser. I could do anything and no one would notice.

The couples I’d changed just carried on talking and flirting, totally oblivious to how much more interesting all of their lives had just become. There was something a little sweeter about their relationships now, I think. To me at least. Like, even though they didn’t notice it, they were each closer to the other in a way that normally wouldn’t even have been possible.

Knowing that I was the one who had done that? It made me feel... I don’t know, it was hard to describe. It felt so right, it felt so powerful. Fuck, it felt so goddamn arousing.

I’d be lying if I told you that right then I wasn’t considering all the ways I could use the thing for sex right then and there, but I didn’t quite have enough confidence in the box at that point. What I needed - besides my fingers deep in some cute girl’s twat- was to clear my head. I needed to come up with a plan, I needed to decide what I was going to do with the thing.

I mean, there were so many ways I could use it to make sex more interesting. Did I give myself a guy’s dick? Did I try out a guy’s body? Maybe I could find a guy I liked and trade parts around onto him so that he was the ultimate sex machine, perfectly in tune with my needs? Or maybe I could use it to engage in some truly mind-blowing roleplay.

Shit, the possibilities were endless. I needed a drink.

I stood up and worked my way through the crowd, doing my best to downplay the weird box in my hands. Everyone seemed to give me a wide berth as they saw me, smiling or gasping or grinning like an idiot as they saw what I was wearing. I couldn’t believe how much of a total hit this dress was. I clearly needed to get my own after I gave it back to Becca.

I winked and purred at my admirers as I went past. It felt good to be the center of attention.

I didn’t quite make it to the kitchen. There was an orgy in the way that demanded my immediate attention.

Okay, maybe orgy is a little strong of a word. It was a gaggle of girls making out all licky-style with each other as they engaged in increasingly erotic bisexual behavior for the crowd of horny boys that were cheering them on. You know, typical party stuff.

Drinks could wait, I wanted to see this. I nudged my way into the center of the cheering throng of guys to get a better view.

There must have easily been a dozen girls or more licking and rubbing along each other’s exposed skin while wetly kissing at whatever they could get their lips on. It must have been going on for a while by that point because most of them were getting down to just their lingerie.

From the looks of it, it had started with all the girls being in color-coordinated teams, but now it seems to have just sort of spilled out into a hot mass of girlflesh, each lovely participant desperately trying to outdo all the others as they collectively devolved into hotter and hotter acts of faux-lesbianism in an attempt to win the attentions and approval of the cheering crowd.