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The Impossible Program (me and Magikazaam)

Despite the cocks being her own doing, Kath couldn't help feel a little jealous of what Jess was getting to feel, her eyebrow twitching slightly. She'd hoped for a little more of a freak out reaction too....still, she'd have to make sure she applied this same change to herself at some point too. Damn...they did look good...Kath was licking her lips yet again as she stared at the cocks hungrily. When Jess joked at her Kath just moved forwards quickly. She reached out to grasp both cocks, immediately leaning in to start licking and kissing at the one Jess hadn't pulled towards her own face.

Without even trying Kath's enormous breasts had wrapped around both shafts, Kath grinding her body up against them as her hands grasped both shafts, squeezing and stroking them, feeling as much of them as she could, getting up on her tip-toes to flick her tongue across the head of one of Jess' new cocks, savouring the taste of her pre-cum.
 
Jess gasped as Kath grabbed her cocks, both shafts throbbing at the feel of her colossal breasts wrapped around them. "Oh fuck..." Jess managed to say before leaning forward and wrapping her lips around the head of her upper cock, only getting part of the head past her lips while her tongue danced across it and she let the plentiful precum pool in her mouth. Even with her mouth occupied, she was far from quiet, moaning and gasping as Kath's hands worked their magic on her shafts and even the hunger in the other girl's eyes was turning Jess on further.

Her own hands shifted to Kath's breasts, squeezing them around her cocks and sliding them up and down her shafts. She had no way to guess how long she was going to last, but she only hoped that Kath had set them up for a rather... voluminous... end.
 
Hearing Jess moan like that only turned Kath on more. Infact she'd never been this turned on before in her entire life, it was an incredible feeling that only spurred her hunger for Jess' cocks even further. She managed to somehow stretch her lips and take the head of one of the cocks into her mouth entirely, giving it a long, hard slurp, making sure to drool all over it, letting a mixture of drool and pre-cum run down the shaft, which only served to lubricate it better for her hands and breasts.

When Jess started to play with her breasts again Kath groaned loudly, which in turn sent vibrations down the cock she was sucking on, her hands squeezing the shafts even more firmly. She had set the volume setting quite high, somewhere around two thirds of the maximum setting, but of course...that was per cock....
 
As Kath took the entire head of one shaft into her mouth, Jess' head fell back with a louder moan than Kath had heard from her in a while before resuming her self-blowjob with renewed vigour, duplicating Kath's trick of getting the whole head past her lips. She could feel she was getting close and started giving herself a faster titfuck with Kath's breasts, even bucking her hips to rub the shafts harder against her. Precum was flowing freely now, enough that she was soon swallowing it rather than just savouring the taste.

It wasn't even another minute before she finally rounded the corner. "Ah-fu-ge-nnngh... ah-AAAAAHHHHH!!" she cried out, throwing her head back as both cocks erupted with a veritable flood of cum. The first jet from her upper cock flew past her face, the tail of it leaving a thick streak across her face and a heavy *splat* as it hit the floor, reaching all the way to the mirror-doored wardrobe built into the wall. Likewise with the second and third, the former landing partly in her mouth which she hungrily swallowed before leaning forward again to drink straight from the source. Even one blast was more than she could take, her cheeks filling and some forcing its way out between her lips and cock. She kept rubbing Kath's tits against them as she continued cumming for what seemed an eternity, before they finally died down to oozing the last dregs (which would still have been enough to fill a smaller drinking glass) onto her neck.

She hadn't been able to see for most of it as her face had been covered in the stuff, forcing her to close her eyes. As her mind finally got back to normal, she groped around to her side to find the edge of the bedsheet and used it to wipe the cum away. She wanted to see how Kath had fared - not to mention the rest of the room.
 
Every time Jess moaned it just made Kath work harder, suck harder, squeeze harder. She could feel the cocks twitching, and Kath had been with enough guys to know what was coming. It just made her more desperate, she wanted to see what it was like for a girl to cum, and her desires were soon rewarded.

Despite being prepared for it, the first eruption into her mouth still caught Kath by surprise. Her mouth was filled in the first instant and she couldn't swallow anywhere near fast enough, having to pull her head back in order release Jess' cock, allowing it to shoot cum freely straight up at the ceiling, the force of the orgasm more than enough to propel the cum that far, splattering across the ceiling of the room before the thick fluid practically rained back down onto Kath...and that was just the first spurt. More and more kept coming, some slamming the ceiling, some just arcing around the room depending on where Kath was pointing Jess' cock, though most of it landed back on Kath's body. Despite the basketball size of her breasts, by the time Jess was done cumming most of the flesh was hidden beneath a layer of thick white cum, along with much of Kath's face and hair. "Wh-whoa...and that wasn't even the highest setting..." She licked her lips, the cum tasted wonderful....the best she'd ever tasted by far. "Well..I'd say that makes it your turn again...." Kath grinned brightly through the cum all over her face, glancing around the room, much of it now covered in a layer of cum.
 
The state of the room was quite a shock to Jess; she knew both had been blasting frankly ludicrous quantities of cum, but she hadn't expected that it had flown with enough force to paint the walls and ceiling. Thankfully, none of it had reached the computer (it was probably a safe bet that cum could still conduct enough electricity to make for rather unpleasant results upon meeting the power board that her computer, monitor and speakers were all plugged into).

What also surprised her was that both cocks were still rock-hard and ready for more. Which was just as well, judging by the look in Kath's eyes. "Mmm... I think I have a few ideas," she said as she slipped out from under Kath and made her way over to the computer, peeling her now-drenched shirt off and discarding it on the floor.

She looked over the options and first set a few extra safety features - namely one that would automatically dissolve any bodily fluids that came within a certain distance of her computer or anything it was connected to (there was enough dust, crumbs and whatnot stuck in her keyboard without having to also soak the thing in a gallon of semen - plus she'd only just bought those speakers). The feature could have been used to clean up the overall mess they'd caused, but she'd save that for later. She was tempted to let Kath experience what she just had, but her cocks were throbbing harder and she was eager to put them to use again. She had two changes she wanted to make for this.

She first selected herself and then scaled her own breasts up the way she had Kath's, though they would look even bigger on her slightly-smaller frame. She set a delay on that change before hitting Apply, wanting it to kick in after she'd made the change she had planned for Kath. Working quickly, she shifted the program over to her and selected her arms before hitting the Duplicate option that Kath had accidentally triggered earlier, giving her a second set of arms under the first.

She hit apply and spun the computer chair around to watch the change, hoping she'd timed her own change properly so she could properly watch Kath's reaction.
 
Kath was more than happy to flop onto the bed, chuckling at the odd sensation of dropping into all of the cum. It was certainly an interesting sensation, one that would be almost impossible to simulate without the program...well, not without a few hundred guys maybe. It was still hard to believe so much cum had come from just two cocks on one girl...and this hadn't even been the maximum setting. She shivered at the thought, oh she most definitely couldn't wait to see that. She propped herself up on her elbows, looking over her huge breasts at Jess as she got to the computer, though the screen was obscured to keep things a surprise. Well that just made it all the more exciting right?

She played with some of the cum that was splattered across her breasts whilst she waited, then grinned as Jess turned back around. "Mmmm, all done?" She grinned, then shivered as she felt an odd tingling into her arms. Before she could focus on that though she watched as Jess' chest began to expand and grow. "Ooooh, so that's what it looked like is it? Nnngh..." Kath felt herself growing more aroused once again from the sight, sitting fully upright now. As soon as Jess' breasts had finished throwing though Kath moaned and clenched her fists for a moment, then uncurled them again. A moment later fingertips began to sprout from her palms, whilst her arms were thickening and bulging. At first Kath though her arms were growing more muscular, but then a full hand emerged from each palm, beginning to pull an arm out with it, her arms seemingly splitting until each arm had become two, one above the other. "Whoa....." She blinked, moving her arms around, all of them moving in unison, it was difficult to move them independently after all. "Gee, wonder what you want me to do with these hm?"
 
Jess couldn't help but moan at the feel of her breasts swelling. She'd experimented with it the night before, but it was still a wonderful sensation to feel them grow, her hands roaming over the expanding flesh partly for her own benefit but also to tease Kath a bit. She was surprised at how the program had created the extra arms, splitting them off from the existing ones, but she had to admit that that was a better alternative than having the new ones grow from scratch.

She stood up and walked over to the bed, breasts and cocks bouncing with each step. "Oh, I'm sure you'll think of something," she said as she placed her hands on Kath's hips and pulled her to the edge of the bed before slipping her hands under her skirt to remove Kath's panties. Taking a firm grip of her lower cock, she pressed the mammoth head against Kath's womanhood. She already knew the program would automatically let Kath stretch to take it, but seeing the sheer size difference was another. Oh well; no guts, no glory.

"Ready for this?"
 
Kath didn't need any further teasing, her body was already desperate, more desperate than she'd ever felt before. She'd never been a slut but all of this...well...it was enough to drive anyone crazy with lust. Her eyes kept flicking between Jess' bouncing breasts and cocks as she strode across the room. Oh god it was so hard not to pounce across the room, pin Jess down and just use her cocks like some kind of toys.

"Ah!" Kath gasped as her hips were grabbed, moaning as her panties, which were now utterly soaked through, were pulled away, then felt one of the cocks pressing against her. "Oooh....hey...how the hell is anyone supposed to be ready for this?" She smirked. "And when did not being ready ever stop me before? Now stop stalling and fuck my brains out!"
 
Smiling at Kath's demand, Jess started to force her lower cock forward, groaning as the velvety-soft folds stretched across the broad head. She kept a firm grip on Kath's hips as she slowly forced inch after wrist-thick inch past the other girl's lower lips, before giving one hard thrust to drive the head and a few inches past it into Kath. Jess was in ecstasy, if she hadn't just painted the walls (and ceiling, and bed, and Kath, and herself) with cum, she would've exploded right then and there as Kath's walls constricted and spasmed around her cockhead.

Instead; she settled into a slow rhythm of slow thrusts, each one forcing her cock that little bit deeper, one inch back, two inches forward. Through all of this, her upper cock was resting on Kath's stomach, the underside dragging along her clit while voluminous streams of precum poured from its head. Even with the upper cock in the way, Jess could see that Kath's belly was starting to bulge out from the sheer size of the shaft inside her. A sight that only spurred her on to thrust deeper and harder, wanting to bury more of her overgrown prick into Kath's heated pussy, and it wasn't long before she started hitting an obstruction; she was bottoming out while a full third of her cock was still outside. Steadily loosing control of herself, Jess started to thrust even harder into her, each one hitting the entrance to Kath's womb until she suddenly felt the gates open, her momentum carrying her cock another three inches deeper.

"Ohh FUCK!" she exclaimed, regaining some sense of rationality as she realised what had happened. She couldn't see Kath's stomach any more thanks to her own tits getting in the way, but she looked up into the other girl's face to see whether she needed to slow down or not.
 
As soon as Jess forced her cock forward Kath cried out in pleasure, feeling her body stretch to accommodate the the huge head, this was by far the thickest thing she'd ever had inside of her, even toys they had used in the past had never been quite like this. "NNNGH!" The girl clenched her fists tightly on the cum soaked bedsheets, tugging at the fabric as the cock slowly worked its way deeper and deeper inside of her, the shaft slowly pushing in, the head beginning to plunge new depths the girl had never felt touched before. Kath's body convulsed and squeezed down even more tightly, but she was so wet that there was plenty of lubrication despite the tightness.

"A-ah..." Kath panted for breath as Jess seemed to stop for a moment, but there was no respite when Jess began to thrust, Kath throwing her head back to moan loudly once more, her stomach starting to bulge with the outline of Jess' cock. "O-ooooh! F-fuck!!" Whilst two of Kath's arms continued to grip the bedsheets, the other two arms reached up, one hand grasping Jess' breast, whilst the other grasped the cock that had been left outside of her, squeezing it tightly and beginning to stroke it, going straight for a fast stroking motion rather than starting out slow. "C-come on! Come on more! I need all of it!!" Kath growled, trying to push her hips down to take even more of Jess' cock inside of her.
She felt some kind of barrier stopping further entry, but she bucked her hips down at the same time that Jess thrust forward, giving enough momentum for the cock to push through her cervix and directly into her womb, the new sensation causing Kath to squeal as she almost came. "C-come on....it...it's in....so f-fuck me..."
 
Kath's hands on her breast and upper cock drew a gasp from Jess, only spurring her on. Jess quickly resumed her previous pace, frantically driving her shaft into Kath as hard as she could, soon hilting herself completely with each thrust. Her upper cock was once more dripping copious amounts of precum, which fell onto Kath's chest and soon became lost in the cum still covering them.

"Ah, shit..." Jess' ability to speak had largely abandoned her, now little more than groans and cries of pleasure punctuated by the odd obscenity as she revelled in the feel of Kath's pussy squeezing her cock like a velvety vice. Kath's extra hands weren't helping things either and she soon pitched forward slightly, catching herself by bracing her hands on the bed beside Kath's head. This had the added effect of squashing the girls' breasts together and leaving the top of Jess' upper cock now in a prison of plentiful titflesh, smearing precum onto the already-cum-soaked mounds. Were she in any state to think about it, Jess would have noted that she was starting to get close, but that would require her to be able to think about anything other than slamming her gigantic cock as hard and fast as she could into Kath's pussy.
 
(Heya, just to let you know I'm gonna be gone for a week after this so don't worry when I don't reply)

Kath smirked as Jess fell forwards onto her, two arms reaching up to wrap around the girl and prevent her from attempting to get back up again. The other two hands just grabbed Jess by the ass, squeezing the firm cheeks and forcing Jess to push her cock as deep as it would go with every thrust. The sensation of their huge breasts rubbing together was amazing, moreso than when they had done the same thing in the past, albeit with toys and strap-ons. Unfortunately though the titanic size of their breasts also kept their heads too far apart to kiss.
"Ungh...Ahh...O-oooh". Kath had lost her own power of speech, reduced to little more than grunts and moans. Her mind and body were both awash with pleasure she had never imagined, a huge cock sliding between her breasts. No, both cocks were now being squeezed by her breasts, her stomach being stretched out like a cocksleeve now. "Ah...Ah...!"
Kath had been attempting to give some warning, but she couldn't, all she could do was scream as she came hard, her body jerking and spasming beneath Jess, arms pulling the girl as close and deep as she could whilst her pussy tightened up even further.
 
Her cock being constricted even more by Kath's inner walls finally drove Jess over the edge, screaming along with her as her cocks erupted with another colossal load of cum.

With the head of her upper cock trapped between their breasts, the cum didn't fly as far as before, but erupted out between the squashed flesh, spraying from their cleavage both up into their faces and down to Kath's distended stomach. Which was only becoming moreso as her lower cock filled Kath's womb. Jess could already feel Kath's stomach swelling with cum and pressing her lower cock harder against her own body.

Despite Kath's arms around her, the bulging stomach pushed Jess back, freeing her upper cock to once-more unleash its load anywhere and everywhere, drenching the room and both girls once more in the pearly cream. The ceiling in particular as Kath's expanding belly forced it to point skyward. Jess' hands had flown to her chest and were frantically squeezing the plentiful mounds or rubbing cum across them, pulling at the nipples as her orgasm seemed to last another eternity. Kath's body finally couldn't hold any more cum, the pressure forcing it to erupt back out around Jess' cock as fast as she was pumping fresh cum into her, the overflow quickly covering Jess' legs and lower body.

As the orgasm finally started to die down, Jess leant forward to once more suck on her own upper cock, drinking down several mouthfuls of cum and letting the rest run down her length, making a big show as the last dregs were fired into her mouth and Kath's womb. Kath had grown so large that she looked like she was about to give birth to triplets, but even that wasn't quite big enough to hide the bulge caused by Jess' cock, which was still visibly stretching part of her stomach slightly more than the cum.

Finally back in her own mind (albeit one still reeling from the pleasure and still filled with arousal, as her cocks remaining hard could attest to), Jess looked down at her handiwork - Kath was once more covered almost head-to-toe in cum. Now she was eager to see her reaction to how much she'd been filled.
 
The feeling of being filled with so much cum was amazing. Kath had felt a guy cumming inside of her before, but nothing remotely like this. But yet as she felt her body being filled to capacity...it just kept on coming...and she kept on being filled. Soon she found her stomach starting to grow and bulge as her womb was continually made to expand with more and more cum. Her eyes widened as she sensation overwhelmed her, triggering a second orgasm in Kath before the first had even ended, her screams once more echoing around the room, her grip on Jess tightening and trying to pull her closer even as the girl was continually pushed further and further away by her still growing stomach.

"NYA!" Kath cried out as she felt a sudden rush of cum bursting out of her around Jess' cock, her body finally unable to handle anymore it seemed, though that hadn't stopped the cum from flowing. It splattered across her legs, coating her lower body that until now had been sheltered from Jess' cum fountain by Jess' own body.
When the orgasms finally subsided for both of their bodies Kath collapsed backover onto the bed, barely able to breathe, desperately trying to capture her breath, her huge breasts and belly jiggling with every breath she took, a slow but steady flow of cum still running out from between her legs. "O-ooooh...." It was hard to think after such pleasure, Kath's mind was still flooded, her vision hazy. She was only vaguely aware of how big her belly had gotten, but her state sprawled out on the bed with a huge belly and giant breasts was most certainly a rather ideal photo moment.
 
With how Jess' computer was placed relative to the bed, the two of them were lying sideways across it rather than in the intended direction. Fortunately, this made it easier for Jess to reach over to her nightstand and pull her phone out of the drawer (which was where she kept it to avoid an errant text killing the moment if she was with a friend).

It took a little bit of finagling to find an angle that showed the extent of how far Kath had been filled, but she finally got a shot from the side, one cock still buried inside her, the other at her lips being lasciviously licked. She put the phone back in the drawer for this next bit, not sure what sort of reaction it would trigger in either of them.

Working slowly, she pulled her cock out of Kath, groaning at the feel of her cervix and inner walls trying not to let her go but failing miserably thanks to all the cum greasing the way. As she cleared Kath's womb, the metaphorical floodgates opened; with nothing blocking the way, the ludicrous amount of cum blasted into her forced its way out, her stomach forcing its way back into shape. One hand rested on Kath's shrinking stomach, not forcing it but just feeling it deflate until it was back to its normal toned form.

Much of the cum on the floor seemed to fade away, thanks to the clean up feature she'd triggered on the program to avoid frying the powerboard everything was plugged into. While she let Kath recover, Jess went back over to the computer (albeit with a bit of a shake in her legs) and set it to remove all of the cum covering, well, everything. She was sure Kath would be disappointed, but Jess' limit on that front was clearly lower than the other girl's.

She debated on keeping her cocks, but a better idea sprung to mind. Removing the extra appendages (and shuddering at the feel of them shrinking away to nothing), she was about to leave a message on the screen in Notepad, but decided against it when she realised that anyone would be able to hear the shower going from here. Instead, she retrieved her phone and sent the image to her desktop, opening it across much of the screen.

As for the program; she simply left it open on Kath's form with the tab for genital alterations open, hoping that she would come to the right conclusion, before heading for the shower as thoughts of what was likely to come started to fill her head.
 
When the cocks were pulled out of her Kath gasped, then moaned loudly as cum started to pour out of her, powerful muscles starting to force her stomach back to its normally flat shape. "Oooooh! G-god...almost gonna cum again...." If she hadn't been so exhausted there was every possibility that Kath would have had another orgasm from the sensation of the cum pumping out of her. Despite the rate it was flowing out though it still took several minutes for her stomach to be flat and the flow to stop, though there was certainly still plenty of it resting inside of her, whilst the bed between her legs and the floor surrounding it had an even deeper layer of cum than before.

Kath took a little longer to recover after having been filled so much, panting and barely able to see as she watched Jess get to work on cleaning up her huge amounts of cum, before she just laid her head back again to grin and chuckle, taking a few deep breaths. "Ahhh....oh god...never imagined anything like that before..." She glanced up as she heard the door, then figured Jess must have left since she was no longer there, and a few seconds later she could hear the shower going. Well, made sense the girl would want to clean up.

Once she had recovered a little, Kath got out of bed, groaning a little as she walked over to the computer and dropped down into the seat, looking at the screen and smirking. "That girl...still up for more huh? Well the mind is willing but the body...hm..." She reached for the mouse, clicking around a bit and smirking as she found a "Recovery" function, clicking the option with herself highlighted. An instant later she gasped as she felt reinvigorated, like she had just gone through the best nights sleep of her life, more awake and energetic than she could ever remember feeling. "Oh wow, now that's a hell of a wake up call. Now..."

She smirked as she went back to the tab Jess had left open, getting the idea of what she was hinting at. Still, just copying Jess would be no fun. As she explored the options a little deeper though Kath found something that almost made her laugh with glee, though she had to suppress it, if only to keep Jess from being tipped off that Kath had gotten a slightly evil idea. She quickly got to clicking and filling in a few text boxes with descriptions when prompted. She quickly double checked everything, before clicking the apply button, licking her lips and groaning as she felt the changes taking effect...


A minute later Jess would hear the bathroom door opening, followed within moments by the door to the shower itself opening, Kath stepping in. Kath would still be sporting her huge breasts, and down between her legs she too was now sporting two erections...but they were a simple normal size rather than the giant 18 inch monsters Jess was sporting. Still, from the grin on Kath's face, not to mention her competitive streak, there was definitely something else going on. "You ready to have the tables turned?" Kath smirked as she pressed herself into Jess' back, squashing her huge breasts against the girl, pushing her hips forward to rub the tips of her cocks against Jess' body. One of her four arms reached out and 'accidentally' knocked a bar of soap from one of the in-shower shelves, dropping it to the floor. "Ooops. Why don't you....bend over and pick that up for me? Pretty please?"
 
While she was surprised at the rather regular size Kath had gone with, she wasn't disappointed. She pushed her ass back into the two cocks as she heard the soap hit the floor. She didn't reply to Kath's questions - mainly because the one about picking up the soap was so cliché that it threatened to draw a snide remark from the girl. Instead, she gave her a sly smile before exaggeratedly bending over, still pushing her ass back into Kath's cocks, to grab the fallen bar.

She was curious what Kath had in mind - the size was surprising her but there were so many options in the program that she hadn't touched that it could have been anything. Even setting conditional triggers akin to what she'd initially set the clean-up option for earlier to avoid shorting the computer with a stray litre of cum.
 
Kath smirked as Jess pushed back against her, oh she was going to be in for a surprise. Reaching down to grasp both her cocks Kath gasped at the sensation, this was the first time she'd actually touched them. Despite what was right infront of her the temptation to just start jerking herself off was almost overpowering. Still, she managed to resist and brought her cocks into line, one with Jess' pussy and the other with her asshole. With a loud moan she pushed forwrads, panting and grunting as the heads finally slipped into both of the girls holes. "F-FUCK!" Her hands went immediately to Jess' hips, firmly grabbing the girl in order to steady herself. Just one cock was pleasurable enough, but pushing two into the other girl? It was almost enough to make her mind go blank. Still, the fun was only getting started.

Slowly Kath pushed forwards, easing both of her cocks deeper into Jess' body until her hips met Jess' ass which she promptly gave a firm squeeze. "Nnngh....feels so good in you...a-ah..." She stayed still for a few moments, cocks twitching and pulsing, then slowly pulled out a little, before sharply thrusting back in. That was when Jess would feel it, as Kath thrust in again she somehow seemed to go a little...deeper? Not only that but the cocks felt ever so slightly thicker. As Kath started to thrust more and more it started to become clear what was happening. Every time Kath thrust inside of Jess, her cocks were growing larger! They were getting longer and thicker with every single thrust, spreading Jess' pussy and ass wider and wider whilst reaching deeper and deeper into her body.
 
Jess had grabbed the soap by the time she felt Kath's cocks move into position. "Nnaahh!" Even having predicted that Kath would use both on her, the sensation still caught her by surprise. Putting the soap back on the shelf (an incident with another girl and a fallen bar of soap, while it hadn't led to any injuries, had thoroughly killed the mood), she pushed back against Kath's cocks, bracing her hands against the wall.

As it finally dawned on her why Kath had gone with such a modest size, she smiled and started thrusting back into her more eagerly, rolling her hips as she did so that each thrust hit a different spot inside her. She was curious to see how big they could get before releasing their payload.
 
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