There's really only one way the breastman CAN decide.

Mary kept smiling as Nathan gaped at her, wheels obviously turning inside his head. And the dragon didn't have to wait for long.

"I... would I... end up looking like... her?" Haltingly, eyes flitting between the dragon's gentle smile and the jiggling, sloshing orbs hanging from Emerald's chest, squashed against the floor as the slime girl twisted her head almost 180 degrees to reach Mary's nipple. "Like, with all those... curves, I mean?"

"Funny how it's curves now, it was tits when mine grew, hm?" Mary's smile widened, baring fangs the size of small swords to a rather disconcerting effect, but continued over Nathan's stammering. "I can't promise you that, but I figure you will be somewhere in the same ballpark."

"Th-then... yes. I want... I want that!"

"Good enough for me." Dragging a claw through the puddle that was Emerald's main means of locomotion, Mary held the dripping talon on front of Nathan's face, gently rumbling: " Go on. I'm not gonna **** this down you, unless you want me to."

Holding on to the dragon's finger, even his whole hand not reaching around it, Nathan wiped off a bit of Emerald's slime and licked his fingers clean, pulling an appreciative face at the taste.

"Hmm, tingly, and... oh, all the way... down? Urp!" Nathan held his stomach with both hands, a loud gurgle making Mary raise the thorny ridge that had replaced her left eyebrow. "Oooh, I don't think this agrees with me..."

"I think it does, Nathan, That color really becomes you."

"Huh?" Raising one of his hands from his belly, Nathan saw it dripping with slime - only it was not the hand he'd wiped off Mary's claw with, and the slime was a deep, sparkling red, his dress shirt dripping with goo. "I... I... it's working!"

Hands flying from his gurgling stomach to his pecs, Nathan massaged and squeezed them, smearing them with both Emerald's and his own slime, even though nothing was happening yet. Mary, meanwhile, enjoyed the attention Emerald was giving her enormous breasts, sucking noises emanating from under her while the slime girl used her distended mouth and an inflated hand to pleasure the dragon, who kept an eye on Nathan's changing body nonetheless. Ruby red slime was soaking the front of her former boss's button down shirt, slowly spreading through his torso. The sight gave Mary an idea - her hoard would be filled with gemstones. Living gemstones, in the form of multi-colored, voluptuous slime girls serving her every whim.

"It is working indeed." Extending a claw and demonstrating impressive fine motor skills for a truck sized winged lizard, Mary ripped open Nathan's shirt, smirking as she saw through the entire midsection of his torso, skin and flesh and bones replaced by red slime - which was spreading upwards and downwards inexorably, Nathan's waist shrinking all the while. "Working impeccably."

"What do you meeeaaan~?!" Nathan whined, holding his hands under his pecs, palms up and empty as if to demonstrate his woefully titless, albeit more and more ruby upper torso. "I'm flat as a board, with nothing--"

Splorp!

As if they had just waited for his rant, Nathan's pecs exploded into ruby red orbs, soft and wobbly and overflowing his hands, slime dripping over his still human, still male hands. Staring down at his swelling slime mammaries incredulously, a dumbfounded smile began to spread on Nathan's face as his hips began to spread his slacks. He wobbled his expanding chest, globs of slime falling to the ground from his knuckles, and chuckled quietly. A chuckle that became a happy giggle in a matter of seconds as the slime spread over his neck, not stopping in the slightest as it made its way up his face.

"That... mmmh~, that's exactly what I wanted..." Nathan moaned in his husky new voice as his pants began to slip into his legs, the arms of his shirt slowly turning pink from the shoulders down as it soaked up the spreading slime. "Ffffuck... big tittiees~...."

While Nathan's chest and hips grew, his height began to diminish at the same time his hands and head fully turned into red slime, a thick blob of slime reminiscent of hair cascading down his shoulders and back. First his feet, then his calves and finally his thighs sank into a spreading puddle that reabsorbed the slime that had already dripped to the ground, clothes half sinking, half falling through his liquid body as he kept playing with his tits - which, while quite large, were far smaller than Emeralds. For now; because the sight of them and of course the green slime girl's ministrations had wakened Mary's mighty battering ram once more, and she was not about to waste a good erection.

"Well, Ruby..." With a vacant, happy smile, Ruby looked up at her mistress, pushing together her swollen chest with dripping hands. "I think you're ready for a bit more mass, hmm?"

"Ooh, am I ever! Mistress, I want everything you can give me, I wanna be biiiig~!" Bouncing up and down, Ruby sent ripples through her locomotion puddle and her body a-wobble, eyes sparkling in excitement. "Like, as big as Emerald, at least!"

Smiling, her vicious teeth suddenly not looking disconcerting at all to Ruby, Mary righted herself to much whining from Emerald who, even though she stretched herself as much as she could, soon lost contact with the dragon's prodigious bust with a wet sucking sound. But the green slime girl's plaintive protestations soon fell silent when she saw the tumescent rod throbbing and quivering between Mary' scaled legs, and both slimes wasted no time in surging forwards and splatting their bodies against their mistress' pulsing pole, making Mary rumble lustfully.

"No! Emerald! It's my turn to become bigger, let me at the tip!" Even the two slime girls squabbling and fighting produced nothing but pleasurable sensations for Mary due to the size difference and the malleable, wet bodies of Ruby and Emerald. "I want--I want bigger--ooooh!"

"Firsht come... *slurp*... firsht sherve!" Holding on to the massive dragon dick before her, Emerald sucked at Mary's tip, a first drop of pre sucked into her body to supply the slime girl's enormous breasts even more mass.

"You already had your first serving! And your second and third!" Trying to push Emerald away from Mary's gargantuan ramrod only made Ruby's hands sink into the other slime girl's body without moving Emerald whatsoever. "I! Want! To! Be! Big! Too!"

"Then be fashter necsht time..." Emerald mumbled as she stretched her maw around Mary's shaft, easily accommodating a throbbing pole that was as big as she was. "Mmmogh~..."

"I... I... oh, just you wait!" Right as Mary was about to intervene - she wanted all her slime girls to be happy, after all, Ruby solved the problem in her own way. "If you don't want to share, I'll just have to make you!"

Declaration made, Ruby dove down and latched onto Emerald's distended, permanently erect nipple, pouty lips stretching to fit it in - and began to suck with all her might. And as harebrained as the scheme seemed, as Mary moved her long, snakelike neck down to check what the slime were doing, she saw light green streams of slime shoot into Ruby's neck and body from where she was sucking on the bottle-sized nipple in her mouth, soon to be absorbed by the slime girl's red ooze. Adding to her mass. Swelling her body's proportions with every suck she gave.

Emerald shuddered at the stimulation of having one orifice plugged by dragon dick and one nipple sucked by Ruby, not noticing that despite the pre supplying her with more mass, Ruby was managing to steal curves faster than Emerald was gaining them. Mary chuckled to herself, the sound slowly dissolving into an appreciative moan as Emerald raised her body to take more of the dragon's length into her and Ruby rubbed the side of her body against yet unattended dickmeat as her breasts and hips swelled. Bringing both hands to her enormous, scaled tits, Mary still kept her half-lidded eyes locked on her two hoard members, smiling at the way Ruby's tits began to touch the floor, the stimulation to her expanding bust making the slime girl jiggle and slosh as her boobs oozed over the tiles.

But with every square inch of tile that disappeared, Emerald was diminished, even with the increasing flow of pre supplementing her own slime. Her curves, ridiculous before, were approaching merely outrageous - still far in excess of what a human woman would ever possess naturally, but Ruby was fast approaching the tipping point where she would actually be bigger than Emerald, and showed no signs of stopping, of being satisfied with what she had. After all, she was still smaller than Emerald had started out.

"Mh-hmm, keep going, girls..." Slowly thrusting her wide, draconic hips, Mary pushed her monstrously shaped and monstrously large rod deeper into Emerald, only to pull it out again languidly, much to the dismay of the slime girl. "Serve your mistress..."

Even sucking on Emeralds shrinking tits, Ruby still noticed the other slime girl getting facefucked by a cock bigger than some people, and she was not going to be left out. Using the properties of her body, Ruby simply swung her inflating rump sideways, flowing around Mary's gargantuan member until, eliciting a moan from Ruby that sent ripples through Emerald's entire body, Mary slipped right at home between Ruby's massive ass cheeks, the slime girl's pussy stretching and expanding with a slurping noise until it hugged every contour of the dragon's straining shaft - which simply thrust out somewhere on Ruby's upper back and right into Emerald's distended mouth, the former leaning down to keep emptying the latter's body, looting her for cup size after cup size.

"Mmfgh-gh-ghk!" Which, of course, became rather less coordinated now that Ruby's technically virgin slime pussy was getting stretched wide by her mistress, the slime girl's eyes rolling up in her head. "Mmhllhyesshh~..."

Her hips hitting slime girl ass with rather wet slaps, Mary raised her head again, claws hefting and kneading her scaled tits and rolling her turgid nipples between her fingers as the dragon leaned forwards, using her wings to support herself as she kept pumping her hips into both her slime girls, the wing membranes effectively hiding them from the rest of the world as Mary's tail lazily swiped across the stairs behind them, bending the railing and even ripping it out of the concrete hiding under the tiles in places with casual ease.

It didn't matter. All that mattered where the three beings enjoying each other's bodies as well as their own, the transformation having increased their sensitivities to the utmost, their inhibitions decreased until they didn't care about fucking right in the lobby of a large company headquarters, even knowing they were likely the only ones in the building. But Mary only wanted to fuck her slick, slimy servants, make them swell with her cum, Emerald only wanted to service her mistress' cock until it blasted her full of jizz, and Ruby only wanted to get pounded right now. Sucking on Emerald's slime titty to become even bigger was merely instinct now, whatever had taken over the duties of Ruby's brain thoroughly overwhelmed by Mary's noduled dick spearing her through.

Which didn't mean that it wasn't still happening. The ass Mary sent ripples through whenever she bottomed out packed on more and more mass, and Ruby's tits rolling over the tiles with the rocking of her body pooled over more and more ground, their undersides long since having met the puddle the slime girl had instead of legs. As they were now large enough too hold the red colored slime girl up, Ruby could rest her arms on the enormous swells, eyes half-lidded as her body rocked and rippled, swelling larger even as Mary thrust straight through her.

Emerald, meanwhile, was still oblivious to what was happening to her curves, completely absorbed with slobbering over whatever length of the dragon's shaft she could reach. Her proportions were slowly approaching downright realistic, if rather large, and the slime girl didn't pay them any heed - or simply didn't care about it, certainly less than for the gargantuan, draconian rod spearing into her. Emerald would now have been able to pass as a more or less normal woman, if one discounted her lack of legs and the fact that she was made out of translucent green slime.

"Mishtressshhh~... You're sho tashty... and biiiig~..." Big enough to **** Emerald's lips open beyond what was humanly possible, her neck stretching as Mary fucked the slime girl's throat almost lazily, gouts of cloudy pre oozing into Emerald where they dissipated and if not replenished her curves, at least slowed down the shrinking. "Pllleashe... gimme all your cummh~..."

Mary was definitely intending to, or rather unwilling, to stop what the dragon and her hoard were doing. Feeling Ruby's fattening ass slap wetly into her scaly crotch whenever she bottomed out, stretching Emerald's neck with her tip, the dragon's gargantuan breasts moving against her clawed hands as she squeezed and carressed them, the claws on her wings scratching over the tiles and leaving shallow furrows in the smooth finish... it was a veritable cacophony of sensations, most of them mind-bendingly lustful, and all reminding her how enormous and powerful she had become.

Thick cum gurgling and roiling in her draconic nuts, Mary felt a smile spread on her jaws as her tongue lolled over teeth like swords, deep, rumbling moans of pleasure filling the lobby as she pounded both her slime girl servants, feeling her battering ram of a shaft stimulated exquisitly, the nodules on the underside quivering mightily as they slorped in and out of throat and pussy of Emerald and Ruby, making their dragon mistress shiver and pant, body twitching as Mary's arousal kept rising uncontrollably.

"Hrrrungh~... I need mmmhorrre~... Mooorrrrh of you..." Eyes falling nearly closed, an image rose in front of Mary's mental eye - her in her draconic form, resting on her back, surrounded by slime girls in all colors of the rainbow, all of them swollen to unwieldy proportions, all of them attending to her most sensitive parts. "Dozens... Hundrrrrheds~..."

Both slime girls were too far gone to process what the dragon was rumbling about as they were slammed together by Mary's intensifying thrusts, wet slapping sounds growing louder as she railed Ruby's slime cunt and Emerald's eager throat at the same time, the dragon's words devolving into guttural growls and and snarls as she pulled her tongue back into her jaws and grit her teeth, feeling an all-consuming lance of pleasure spear through her crotch, ramming both slime girls against the floor and grinding them down into the tiles, curves squished between hot dragon dick and cold marble.

"HRRRROOAAAAAGH!"

All the windows not broken by Mary's descent shook in their frames as her second climax as a dragon ripped through her, wiping away all rational thought and leaving only primal satisfaction behind as her scalding hot cum exploded into Emerald, turning her rich green pale as the slime girl struggled to absorb her misstress' swimmers, diminished curves exploding outwards again and practically swallowing Ruby's face, the latter's lips still latched on to her sister's nipple, sucking forgotten as Ruby's slimy snatch quivered and twitched around Mary's straining pillar of fuckmeat.

"Hhrrffh~... Hffh~... hrrrrnh~..." Panting and growling, Mary struggled to raise her hips to give her servants room to breathe, un-squishing both of them and causing loud protests to rise as the dragon pulled her monstrous shaft out of first Emerald, then Ruby, turning to look at them both. "Nnnrrrh~... Good work, you two. You have attended me well."

"Thank you, mistress!" The reply came in unison, both slimes switching seamlessly from complaining about not being filled anymore to beaming up at the dragon, although Ruby gave Emerald a side-eye before smiling smugly at the fact that she was still visibly larger than her sister. "We live to serve. Because it's so much fun... and feels soooo good!"

"Indeed..." Still light-headed from her climax, Mary nevertheless smirked down at the slime girls. "What do you say, should we share the fun?"