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This story was written as Day 4 of Kinktober 2019 for Adamios. Today's theme was Macro-play, and the story contains macro growth and masturbation involving consenting adults!

Just a Little Bigger...

Adamios and Ada grinned as the hissing of the airlock-like decontamination chamber faded, and the door at the far end of the room swung open. The two anteaters gathered up their already discarded clothes, grinning and blushing at one another in anticipation, and ventured forth into the dome beyond. Their eyes widened, and both of them moaned in awe as they regarded the vast interior of the reinforced glass dome. They'd read almost obsessively about this place online ever since one of their friends had gotten a job here and let them know of its existence, but to finally be here... even if Adamios hadn't been rock hard and Ada soaking wet with anticipation already, they would have gotten that way in moments after actually stepping through that door.

"You're gonna look so big. So beautiful."

A deep, gruff moan escaped Adamios as he took Ada in his arms and kissed her, long, slender muzzle to long slender muzzle. His large, clawed hands ran down her sides and settled on her ass, and she moaned as her hips rocked against his and she felt his erection press up against her pubic mound, throbbing with urgent anticipation. It would have been so easy to have him lay her down right there upon the smooth, featureless white floor of the dome's interior and just fuck her, riding the crest of what they hoped they would be able to experience here before their brief and unauthorised presence had to end in order to avoid detection by one of the company's semi-regular security patrols. But, they could live out the fantasy together time and time again at home, whispering and moaning and imagining what it would be like. Only here could it come true, and thus they didn't have time to fool around and fuck. They had to get to work, so that when they lived out these fantasies together in the future, it could be memory rather than pure role-played fantasy which fuelled their urges.

Pulling apart with a mutually eager moan, Adamios hurried over to one edge of the room where a small booth filled with elaborate, high-tech controls was located in the otherwise vast, empty space of this one kilometer radius dome. Ada meanwhile ran in the opposite direction, and began to jog her way to the very centre of that dome where a large target was painted onto the otherwise pure white, smoothly painted floor. After a brief while of waiting at his own location, Adamios watched as on a high-resolution and magnification camera he saw Ada jog eagerly into view, and flop down with a weary giggle upon the target. The male anteater licked his lips, gave an eager moan, and before he could even reach out and activate the communications system which would hopefully allow them to communicate over the five hundred or so metres now separating them, his cock twitched as from where she was lying on the floor Ada looked right up at the camera through which she was being observed, and gave Adamios a double-set of thumbs up.

Doing his best to remember word for word what the friend who had given them this secretive, off-the-books opportunity had told them in regard to instructions, Adamios eventually ran over, grabbed a piece of paper out of his discarded trousers' pocket and began to carry them out verbatim. He flipped switches and shivered in delight as a deep whirring of energy rang out through the entire dome. He watched as a spotlight fell upon the target on which Ada was lying, and as she was illuminated within it the female anteater immediately spread her legs, arched her back, and reached between her legs to part her lips, obscenely showing herself off to the camera and to Adamios before slipping another clawed finger between her already swollen, damp lips and beginning to actively, openly masturbate. Finally he tapped in the last set of activation codes, doing so one handed as his other paw wrapped itself around his own straining cock, and with a heady, joyous moan of extreme anticipation, Adamios hit the activation button and watched as a vast laser shot down from the ceiling at the very centre of the dome, and bathed his masturbating lover in a ray of dazzling energy.

"Ohhh god, yeah..."

Adamios groaned loudly as his hand immediately and urgently began to move upon his cock, while he watched Ada writhe and moan and pleasure herself within that beam of light... and begin to grow. At first she remained lying down, too caught up in her own self-pleasure as she writhed and wriggled while with each passing second her body got larger, rapidly swelling to twice its normal height, then twice that, and twice that. Before long though as her body reached what was probably already approaching twenty metres in height, she staggered to her feet and stood within the glowing beam's light, head upturned towards the laser and the camera through which Adamios was observing her while with one hand she playfully jiggled her now vast though still proportionally manageable breasts while the other remained ever active, ever rubbing and teasing between her own legs.

For a minute or so Adamios watched Ada moan and masturbate as she showed off to him through the camera, but as she reached and passed by fifty metres in height with no sign of stopping as the dome's unique technology worked flawlessly upon her, the male anteater pulled his eyes away from the screen and abandoned the booth's controls entirely. Instead he staggered outside and leaned up against the exterior of the booth, and peered out into the distance across the huge glass-walled dome. His hand was a blur upon his cock as in the distance he saw a ray of light shining down from the roof high above, and standing in its path a silhouetted figure that was small right now, but seemed to be growing by the second. Moaning loudly as though he hoped his cries of lust to carry out across the dome's empty, echoing interior, Adamios' toes curled and his eyes widened as that figure got bigger still, and bigger, and bigger until finally he could make out more than a silhouette within the laser's light. Until she was large enough to make out the shape of her beautiful and bliss-stricken face, the stocky curves of her gorgeous body, and the motion of her hand between her legs as she stood with limbs firmly planted apart, and continued to masturbate herself feverishly as she grew ever larger, and in the distance finally spotted the tiny form of Adamios pleasuring himself as he watched her soar ever higher.

"Fuck. Ohh, f-fuck, that's so hot. Bigger. Please... b-bigger..."

Adamios grunted in a fevered delirium as Ada kept on growing, and now almost began to sway, to dance within the beam as she continued pleasuring herself, obviously showing off for his benefit. She was well past two hundred metres tall now, and on the way to three and four beyond it with no signs of the device coming even close to reaching the limits of what it could do to her. Every moment, every last instant of Adamios' entire existence was devoted to watching Ada. All his focus trained upon her, and of course devoted in equal measure by proxy to his hand on his cock, fuelling this intense urge he had to see the other anteater grow, and grow, and grow beyond all reasonable, rational limitations.

She grew larger, passing five hundred, then six hundred metres in less than a minute as Adamios' hand finally began to slow upon his cock while the pleasure reached such obscene and impossibly intense volumes that he had no choice unless he wanted to cum right then and there, before even seeing where Ada's growth might cap out. Pre-cum dribbled from his fingers and spurted in surprisingly intense ribbons from the tip of his cock as for a few moments he released his erection entirely, hanging on the very edge of orgasm while panting, whimpering and fighting an internal war with himself as his body begged him not to cum, while simultaneously desperate to do so even with the sights and sounds of Ada's growth and her own bliss to fuel that action.

It was only when Ada reached a total of eight hundred metres tall that finally the laser fuelling her growth began to struggle to keep up, but this only increased Adamios' delight all the more. His eyes bulged and he gave a desperate cry of lust as one of Ada's breasts began to enlarge much faster than the rest of her body, ballooning up and out relative to the rest of her before with a sudden rush of growth the rest of her body caught up. A few seconds after that one of her legs surged forward in its growth, almost knocking the female anteater off balance as she dropped to one knee in order to account for the difference, and staying that way as when the rest of her body caught up it pushed her almost to a kilometre in height, as tall as the dome itself if she'd been standing upright.

What finally pushed them both over the edge of their pleasure however was what came next, a strangled, overwhelmed scream of pure ecstasy erupting from Ada's vast body as her clitoris ballooned up bigger and faster than the rest of her was growing, bulging out from between her legs like a mixture of a thick, plump cock and a water balloon being filled from a hosepipe. Instinctively Ada reached out to grab it, to try and cover it in her mixture of bliss and embarrassment at the obscene and strange sight, and no sooner had her fingers brushed over that hyper-engorged and beyond hyper-sensitive nub... though now less a nub and more a colossus in its own right, she let loose an earth-shattering shriek and filled the dome with the sounds of her body's ejaculations drumming and cascading down to the floor beneath her like the roar of the Niagara falls.

"Yes! A-aahh... Ada! Oh, god. Yes!"

That sight was all it took to send Adamios crashing over the edge of his own climax, and with a wail of bliss he watched his lover shudder and thrash and finally grow to the point where her clit became normally sized relative to the rest of her once again, albeit still spasming, grunting and cumming hard as she did so. His cock quivered, spasmed and began to let loose ribbon after hot, thick ribbon of cum, painting the already pure white floor before him as he leaned back against the exterior of the little control booth which was guiding Ada's growth. He pumped his cock hard, seeking to drink in every last possible moment of the sights and sounds and the pleasure surrounding him, and in doing so not only drained himself of every last drop of cum residing deep in his aching balls, but every last ounce of energy he possessed too. By the time he was spent, all Adamios could do was allow himself to sink down against the wall of the control booth and rest upon his ass, panting, huffing, eyes already growing heavy lidded as a final dribble of cum dripped out between his trembling fingertips.

"A-aaahhh! Ahhhadaaaamios!!"

Thus, as he slipped into a post-orgasmic stupor of extreme and gloriously relaxing proportions, the male anteater wasn't in any state to respond to or even acknowledge Ada's cries of mingled pleasure and nervousness, somewhat muffled as even while kneeling down she felt herself being pinned beneath the glass dome while her body continued to grow at an increasingly uneven but still rapid rate.

"Turn it off! Turn it o-ooohhhhhhgodyesssss!"

Ada tried to plead with her lover to deactivate the device, to at least stop her growing if not make her shrink quite yet, but just as she was reaching out with one trembling hand to try and poke her tiny companion with one trembling fingertip, both her breasts decided to spontaneously quadruple in size, pressing against the cool painted floor of the dome and thus applying intense, squeezing stimulation to her hyper-engorged and similarly over sensitive nipples. A fresh orgasm crashed through her from that stimulation alone, and by the time it was over and Ada had any meaningful degree of control returned to her body, it was too late. She could feel herself being held in place, pinned down and rendered all but immobile as her body continued to swell against the heavily re-enforced glass above and the floor below. She could feel herself squeezing against the glass, and could almost picture her features squished up against it from the outside. Finally she heard a small wrenching of metal, and felt something give way against the pressure of her neck at the very peak of the dome. She whimpered loudly in relief, as though absolutely immobile she felt herself stop growing. But, that relief only lasted a moment as she realised what she had just felt happen.

Her sheer size had filled the dome to such a degree that she'd just crushed herself up against the very laser causing her to grow. And now, though she wasn't increasing in size any more, she found herself with a different problem.

With her breasts still three times their normal size, so sensitive that every breath sent waves of pleasure washing over her, and her vast body jammed into this kilometre radius dome like a vacuum-packed plush toy, she had no way of being shrunk down again. And right now, even if there was a way, the only person capable of finding it was still slumped over in his own post-orgasmic malaise. Totally unaware of her desperate situation, and knowing him and his damnably kinky mind that kept getting her into situations like this, probably dreaming about her getting even bigger... and bigger, and bigger.

By Jeeves

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