Girlfriend with Testing Device Ch. 14

Eventually, my focus fell onto the crowd over by the whipped-cream pool. One of the guys seemed to be getting a little handsy with one of the girls from the sidelines. She was doing her best to ignore him, but it was clear she was ready to slap him.

I thought back to the orgy in the kitchen and how trading around everyone's masculinity and femininity had influenced everyone's behavior. Could I do something like that here? Like, if I traded their gender around, would that help make things right?

Zzzzttttt!

The results were disappointing.

Oh sure, it had traded their genders around, but for some reason it had done so with very little fanfare. Like, it had done more than trade their junk around at least, but the guy - now girl - hadn't really lost much in the way of build or body shape. Even his face was mostly the same. Sure, he had tits now, swelling up braless under his shirt, but you could hardly see them. If I didn't know better, I'd say nothing even happened.

He - she - was still being obnoxiously handsy with the girl. At least I could take some solace in the fact that the smoking hot girl he had been copping feels from earlier was now a lithe bishonen twink. She reminded me of what those guys inside had become: technically male, but undeniably feminine even with her new lack of breasts and that petite little dick bulging out of her cream-soaked bikini bottoms.

I guess purely physical trades didn't lead to behavior changes? Was that what was going on here? Did they even know they had changed gender? Like, if asked, would she say she's always been a guy? Or would she think she was still a girl? Gah, I knew so little about how this thing worked.

A cheer brought my attention back to the game.

The blonde smirked as she grabbed her ball and rolled it around between her fingers like a magician, demonstrating her deft expertise as a ball handler. Mff. She could handle my balls anytime.

She lobbed the thing in a low but powerful arc, fighting against the wind as it tumbled up through the air, curving off its initial approach and splashing down gently in one of her opponent's cups. The guys grumbled under their breath as they eyed each other warily.

The crowd murmured in anticipation. Somehow, I hadn't noticed earlier, but it looked like the crowd was predominantly female.

"Come on boys. Rules is rules." said the blonde. "Don't bid if you can't play."

Hesitantly the two began to unbuckle their belts...

Zzzzttttt!

... and lower their skirts, revealing their matching sporty thongs to the world. My dick twitched.

The sight of their long smooth legs, lithe and feminine on that otherwise muscular and masculine frame was quite something.

They stood around kind of awkwardly as the girls in the crowd hooted and hollered. Another fun double standard: boys aren't used to being mostly naked in front of crowds. Well, I was glad I could do my part about that.

Their confidence quickly evaporating, they both drank.

The brunette stood up at the table, taller now than she had been a moment ago. The spry lightness with which she bounced around seemed a little at odds with her suddenly massive legs, but the image of her body in that top with those jeans was doing just as much to me as the guys were with those thongs.

She bounced from one leg to the other, pumping herself up for the shot. It was an act which sent her tits bouncing and swaying in an exaggerated motion. She was clearly performing as much as she was playing.

With a spin and a flick, she let her ball fly. It bounced off the centre table and soared in the direction of the cups, only to bounce off the edge of the cup that would have seen the boys lose their shirts.

The crowd grumbled a little, disappointed, but the boys looked rather relieved. They were certainly getting more trouble than they were expecting. I don't know if that was a compliment to the acting skill of these girls - that they were able to trick the boys into thinking they had a chance - or an insult to the intelligence of men everywhere, but it seemed they were learning their lesson, at least.

They both tried to play it safe and aimed for the center shot, but they both went wide. The younger one was starting to get angry, but the older one just kind of looked embarrassed. I was disappointed in these guys. I was expecting them to put up a huge challenge, but I was expecting something. I briefly considered trading their skill around with the girls, but that would hardly be fair now would it?

In the crowd on the opposite side of the table, I could see some trouble brewing. A slimy looking guy who I faintly recognized as a regular at these parties was feeling up the cute girl standing in front of him. At first glance I was furious. Who the hell did he think he was? But as I got a better look, I could see they were also holding hands. Were they dating? She certainly didn't look happy about what was happening. She looked like she was sick of his shit and that she wasn't about to just let herself get felt up in public, even if it was from her boyfriend. I figured the only reason she wasn't doing anything about it was because she didn't want to make a scene.

As soon as his hand crested the hemline of her skirt I'd had enough. I fired the box. He wanted it so badly he could have it.

Zzzzttttt!

The girl blushed in alarm at his probing hands and pushed him away. He fell back, crashing against the crowd behind him.

So much for not making a scene. She was yelling something at him now, then she stormed off in a huff, the hard bulge in her tight little skirt lifting it just enough to expose her panties. Whatever she had said seemed to have shut him down good. He stood there agape for a moment before chasing after her.

I couldn't help but laugh as he ran by screaming, "Wait! Baby! You've got it all wrong! I love you for so much more than your dick!"

Did I cause that? I mean... I caused the dick thing, obviously, but did that cause her to reject him or was that something she was about to do anyway?

The girls were lining up their next shots. It looked like they were setting their eyes on the guys tops. They wanted to see those pecs.

The brunette tried to put a bit of a theatrical flourish on her shot, reaching back in a makeshift pitcher's stance, but it just caused her cleavage to almost spill out, throwing her off balance and causing the ball to bounce off the edge.

The blonde taking no chances, managed to land it.

Zzzzttttt!

There was another groan from the guys as they undid the buttons on their little blouses and struggled to pull the tight little garments off, their heaving breasts scarcely contained by what looked like some very elegant sports bras. There was a joke here, I'm sure, equating the cups on the table with the cups on their chests, but I couldn't for the life of me make it work.

The girls jumped and high fived, their muscular forms completely at odds with the cuteness of the hop and their expressive faces.

This, I think, was where the guys decided they needed to get serious. This was no longer just about seeing some naked girls, this was a matter of life and death. They weren't going to let the muscular chests of their opponents distract them any longer. The question that was running through my mind though was how well would they do now that they had those enormous weights bouncing around in front of them.

Quite well, apparently. On their next turn at bat, the younger brother managed to bounce the ball right off the table and into the girl's shoe cup.

Again, I couldn't help but wonder if maybe I had been the cause of that. Like... maybe it had something to do with the change in muscle mass? Like they were overestimating their strength before? Or maybe having boobs just makes you somehow really good at throwing things?

Zzzzttttt!

Regardless, the boys were looking fine in their bare feet and painted nails as the girls took off their now much too small high-heels. It was a bit of a cheat on my part, sure - trading the body part but not the garment - but I didn't know how that would work if I traded the guys lack of shoes onto the girls right before the girls were supposed to take their shoes off.

The guys bumped chests at the sudden reversal of fortune, their tits pressing together then bouncing about chaotically in their flimsy silk prisons as they peeled apart. I grinned in delight. The boys were basically all woman at this point, but I still couldn't get over the way their movements and mannerisms were still so undeniably masculine. I almost considered trading their heads around just to complete the change, but that seemed a bit premature. They might make a comeback yet.

A loud cry drew my attention to the patio as I was scanning the area for my next potential victim. The cry was coming from a rapidly expanding hole in the crowd around a dude who had obviously been partying way too hard. He had a beer bottle going in each hand and his shirt had probably come off ages ago, which would have been fine if he had been in a bit better shape.

Not that there's anything wrong with dad-bods, but like, with all the steak on display, his hamburger was just not pulling its weight. He was stumbling about yelling woo at people as though it were the most awesome thing in the world. People were parting to keep their distance.

You get people like this at parties sometimes. Sometimes people don't know their limit. Sometimes people think they have to go to extremes to live up to the idea they have in their head. This poor thing was just trying way too hard.

Okay, so how could I help this guy out?

The obvious answer, of course, was that I could turn him into a girl.

What? Don't give me that look. You get placed in a situation like that and you'd be hard pressed to find a problem that couldn't be solved by trading someone's gender too.

Besides, for my idea to work I'd need everyone else to acknowledge that he was a girl, and that was going to be tricky. If I just traded his gender or did anything else purely physical, no one would notice.

I scanned through the crowd for someone else to trade him with. I felt like I was still learning how to use this stupid thing. Like, I could get it to do what I wanted most of the time, sort of, but it kept throwing me curve-balls. I needed to be careful.

Ah, perfect. On the opposite end of the crowd there was a mousy goth looking girl that was clearly drawing way too much male attention. This was another familiar story. She had probably come with a bunch of friends who had all ditched her to go hook up with random strangers. Now she was all alone treading deep water while all the sharks nibbled at her heels. Why the guys were going after her and not any of the hundreds of girls here who actually were looking for a hookup is beyond me. I guess some guys like a challenge. Some guys are clearly idiots.

This was as good an opportunity as any. I wanted to change the way people treated these two. Could I do that?

Zzzzttttt!

I could feel the box heating up in my hand. No that wasn't quite right... it was like it had gone from warm to hot the instant I had released the button, with no in-between. Still, it was at least bearable this time. I didn't want to imagine what could happen if this thing got dropped.

Had it not worked? Was that what that heat meant? I squinted, trying to see if the box had done anything, but both of the targets seemed to continue on without any obvious change. But of course, the difference wouldn't lie in them, would it? It would lie in everyone else.

I took a closer look at the crowd surrounding the drunken dude. Sure enough, everyone that seemed to be drifting away before was now tightening back up around him. Guys were stopping and sneaking discrete stares at his exposed chest. One or two of them even seemed bold enough to go up and try to talk him up. He was grinning at the attention. I guess that's just guys for you. They'll ignore an obnoxious drunk dude, but an obnoxious (topless) drunk girl is a whole other story.

In almost perfect symmetry, the male attention had died off around the girl too. She seemed perfectly content being just another face in the crowd. I was actually a little surprised the guy who was chatting her up hadn't tried to bail on the conversation, but I guess maybe he really was just being friendly. Or he was into dudes too. Either way.

I wondered what they all saw. I had changed how they perceived the genders of those two. Did that mean they were visually seeing something different? Or was it all in the way their head interpreted things? Why wasn't I seeing them that way too?

I was so caught up in the box's mystery that I almost missed the girls next serve. They seemed determined at this point to not let the boy's recent good luck ruin their streak.

A hush fell over the crowd as the ball sailed through the air, bouncing out of an empty cup and landing with a splash into its neighbor: the cup representing the boy's underpants.

A series of hoots went out from the crowd as the two girls grinned.

An enormous blush spread across the face of the older brother. He looked like he was ready to throw in the towel right here and now. The younger one slammed his fist against the table in frustration. He wasn't about to let a little thing like full frontal nudity stop him from victory.

"Come on boys," said the blonde. "Nut up or shut up. Let's see those pussies!"

"You can always forfeit, you know" said the brunette. "Unless you still think you can somehow still beat us."

Zzzzttttt!

The younger brother growled as he pulled his thong down along his smooth white legs, his cock bouncing as it sprung free of its silky prison. He threw the lacy thing to the ground and stood with his hands on his hips proudly.

His brother was a little less gung-ho, his arms squishing his tits together as he held both hands over his exposed, half-hard dick. Was he enjoying the humiliation?

A cheer went up from all the girls assembled. The guys remaining in the crowd pretended not to watch. There were hardly any of them left at this point.

I hope I'd given the dicks to the right brothers. Honestly, I had no way of knowing which belonged to which. Like, I'm sure it doesn't matter in the long run, but well, not all dicks were created equal, and one of those two really stood out.

Mmf. God, there was just something about a dick on a woman's body that just screamed hot. It was like looking at the best of both worlds.

The game was practically over at this point. The boys - who were now hardly boys at all - were down to just their bras. while the girls were still fully clothed.

While the bashful one tried to figure out how to serve a ball without exposing his, I looked back over at the patio. The drunk shirtless dude had left and it looked like that whole corner was starting to clear out, which gave me the opportunity to spy a golden moment.

A girl, obviously more than a little drunk and clearly in quite a slutty mood, was shoving her reluctant boyfriend (I assumed) into a dark little corner. I don't think anyone could see them but me, which I think was kind of the point.

He was looking around nervously, afraid to get caught, but his eyes rolled up into the back of his head as she began to nibble on his ear and neck. Her hands were rubbing under his shirt. Was she playing with his nipples? Mmf, that was such a rare sight. Guys with sensitive nipples are like... yes, please.

Slowly, she fell to her knees and began to unzip his pants. He pushed her away. That was apparently a line for him though. I guess some guys just don't like having their dick sucked in public. A little ungrateful, but i can see why he might want something a little more intimate.

I don't know what she said, but she was whispering something in his ears that seemed to assuage his concerns. The fact that she had her hand down his pants and around his dick probably helped. She began to kiss her way down along his body and soon she was... Oh my god was she going to? Yes! Oh my god in no time at all she had that big thing out and down her throat.

Honestly, that girl was my hero. I'm a big fan of anyone who, when horny, decides that they want to be on the giving end rather than the receiving end. That's a good girlfriend right there. The world needs more people like that.

In fact, that girl deserved a reward. I laughed as I adjusted the box, this would be great.

Zzzzttttt!

The girl rolled back her eyes as her boyfriend's tongue played along the length of what had moments ago been his very own shaft. He was bobbing his head up and down along her rigid length like a pro, stopping to swallow when the whole thing was in his mouth.

I snickered. She was having a much harder time keeping a straight face as he sucked her off than he had when their situations were reversed. She was gasping and panting and biting her lip. I wouldn't be surprised if she was groaning. Mmm, I imagined she had a hot voice. If you're going to imagine how a girl sounds when she's having her dick sucked, you might as well have her sound sexy.

Okay... how did this work? Did they now think he had offered to suck her off? Or that maybe she had dragged him off to this corner and convinced him to go down on her? It was just a head-trade, so I wouldn't have thought it would have done anything to change their behaviors around, but it was like when they were put in a new position, they felt obliged to continue? If you traded someone onto stage, would they feel obligated to perform?

Or maybe I'd just fucked up their relative roles. Maybe this was what her "Giving him a blowjob" was now? Fuck, that was kind of hot.

Damn, he was really getting into it too. See, that's what every girl needs, a boy who gets excited about the idea of oral sex. In my experience most guys couldn't suck dick to save their lives, it was really disappointing.

Fuck, I don't know which was worse: how jealous this was getting me, or how horny.

I switched my attention back to the game. The boys were just getting up to take their next shot.

With a flick of his wrist, the younger boy sent the little ball sailing through the air. For a moment it looked like it was going to land squarely in the girl's underwear cup, but the wind seemed to take it at the last second. He stomped his foot in frustration as it blew uselessly down past the end of the table.

The older brother managed to pick up the slack though, as his ball sailed through the air and landed in the girl's bra cup. The two high-fived, their masculine enthusiasm sending their bodies jiggling as they celebrated.

I traded their boobs back, deciding, in keeping with the dicks, to leave the rest of their torso in place. After all it, was their underwear they were losing, not their tops.

The girls took off their jackets and removed their shirts, covering their bouncing boobs with their arms as they then put their jackets back on. To my delight, they left them just as open as they had been before, exposing an absolute level of cleavage. It was weirdly intimidating in an Amazonian girl-power kind of way. Very punk.

Or it would have, at least, if the lack of support didn't cause their tits to bounce free as soon as they lifted their arms to throw. It was enough of a shift in weight to send the poor blonde's torso swinging just hard enough to push off her shot, causing it go wild. The jackets did not have the boob-stopping power of the schoolgirl tops.

Taking up her partners torch, the brunette was determined to end things once and for all. She had the shot lined up and like a basketball player, tossed the ball up in a long high arc. It landed short, but bounced off the table and sailed tantalizingly close, bouncing back off the inside of another cup at just such an angle to send it down and in.