Ebbie Warden, the so-called "watergirl" of the team, who was considered also the "bench-mouse", the "second-stringbean" and the obvious beta, who was only on the team because her Mom was friends with Stacy's mom, was filling herself up with as much milk as she could manage.
The girl's shirt was filled with breasts, her skirt with ass, and her belly was sticking way out from her body, but she was somehow holding in her growth and running from puddle to puddle long after the rest of the girls had joined in appreciating their newfound growing bodies, especially Shayna and Amanda.
The bloating, red-headed-amazon Amanda because she had drunk a whole birdbath full of the stuff, and young ebony-skinned Shayna because she had used her puffy lips to slurp and suck up even more milk than the first blast she had originally got, and because her genetics were apparently more susceptible to growth than the other girls.
Ebbie meanwhile resolved to continue drinking of Meg's elixir until her twelve year old stomach could hold no more or her magnifying breasts would no longer allow her to touch the ground.
Her stomach had already been a recipient of the milk's powers however, and so could stretch and stretch as she sucked up Meg;s lactation with the full force of her open throat, chugging it as fast as possible and poofing out her stomach to nearly the size of a yoga-ball, as she was now tilting over its compressed mass to guzzle from another puddle, pausing to stifle a burp and some growth with an "mnfff" and forcibly containing the quaking and rumbles of her young body that wanted to grow and Grow and GROW. Her tits were already swollen up to her chin, and she just knew those would be monsters when let loose.
"rrrrrrrppppppppp" Ebbie pressed her lips together like a tightly-shut clamshell as another thunderous belch was stifled within her, the effect of stifling it making her poof out several inches in all directions and splitting the seams of her t-shirt and shorts. She hadn't been custom-fitted for a new outfit like the other girls, being a second-stringer that rarely made it onto the field, but now those were dollars well saved as her shirt bloated out with new breasts and her sleeves plumped up with firm muscle and feminine curves. Her tan shorts meanwhile were nearing the point of destruction, newly widened hips swelling them out and an ass she never had inverting the rear pocket as it double-domed.
A distinct queasiness overcame her, the effect of stifling so much growth, and she thunderously wobbled to another puddle, her breasts continuing to grow as she walked, splitting the light blue Pine Valley Middle School t-shirt right in two, and also on the sides, the top, and the bottom as they bounced out with growth, one on a side larger and larger, until she collapsed onto the ground from her own weight, falling into the surging valley of her own cleavage and struggling behind her askew, sweat-fogged glasses to bend her cute button nose down through the muggy valley of her flesh to drink of even more milk. She was insatiable.
"SLUUUURRRRP" went Ebbie, as her tightly shut eyes, which had been wincing to hold in her imminent expansion, oozed into an uptilted expression of pleasure as more milk flooded into her. But then something happened.
Her boobs began to rock and shake, pumping themselves up like boxing gloves pounding against the ground in reverse, jostling her as they inflated up with amazing bounces of growth, bumping her up out of the puddle and actually straightening and then recurving her spine as her uncontrollable twelve-year old tits exploded with growth.
"WhOa!! WHOA!! wHOA!!" went Ebbie, the gasps and hoots being pumped out of her chest as her diaphragm was pummeled by her explosive growth.
"OHHHH MY GOD!!" Ebbie bellowed out, and suddenly all the eyes of the cheer-team were on her, each pair of eyes surging ever higher, with dominant Amanda's bright blue ones now almost thirty feet high and ascending.
Ebbie's entire form bubbled, and wobbled, and GREW. Audible squelching and muffled popping noises could be heard as her young, boisterous body bulged out with immense new bulges of huge young flesh, Ebbie now moaning like a cow as her head began to spurt up taller.
She had only been 4'8" and 80 lbs before, but by the time she hit the last puddle she had bloated to a massive 280 lbs at 5'2", most of it milk and breast-fat. Now all that magical milk was being digested and expanded in to exponentially more and more girl as Ebbie inflated into the air of the Magnusson's backyard.
As she stood, the other girls, now completely crowding the limits of Stacy's backyard, backed away from her to give room to her growing, shaking, quivering and moaning body, her eyes still shut and her face lifted to the heavens and she grew and Grew and GREW.
Ten feet now, twenty. Her tits were rumbling and wobbling individually of one another, undeniable weapons of mass-destruction pumping themselves larger and larger as she tried to hold back their growth, faster than the rest of her by volumes.
Ebbie's brown-black hair was shaking and bouncing like a mop on parade as her grinning head bolted and popped up higher and higher on her unevenly bloating and growing body, smiling all the time as she let the thunderous spasms of growth wrack herself, sucking all the pleasure up into her brain as her magnificently bloated stomach finally began to dwindle, passing every other girl there at 50 foot tall and swelling, soaring taller and bustier above Stacy's house and every other building in the vicinity as the formerly mousey schoolgirl began to resemble a fertility goddess of old.
She cooed and gently slapped the sides of her tits, as if to encourage their remarkable growth and wonder at the long wobbling line of cleavage that formed without the need for any bra or holster to support them.
"Mmmmmm grow BIG for momma girls!", she urged, and they responded by pumping out another ten feet apiece, a heavy gasp escaping her lips at her sudden wished-for growth. She knuckled up her brow and sent another burst of expansion through her breasts, pumping them out so far from her sternum that the valley of her cleavage could hide a tour bus or two
Ebbie was now by far the biggest.
The aftershocks of her growth wobbling her to a stop over 80 feet tall, Ebbie preened and cooed at her new size as Amanda looked up at the amazing Goddess of a girl, still down near a suddenly diminutive 45 feet, her growth already slowing as her freckles were now moving apart from one another less and less. Amanda collected up the mass of her freckled tits and examined them, squeezing them as if testing for milk. Finding none, she bent down to slurp up what she could from the backyard, the other girls doing the same except for Shayna, who was still growing and looking up to Ebbie with a challenging smirk on her face.
Something in her body was metabolizing the milk differently than the other girls, and her body was just pumping bigger and bigger in regular bursts of growth. Everything was happening in puffy symmetrical expansions, her hips, thighs, ass and tits, each pulse of growth followed by another couple of feet in height, her head continuously just ticking up and up like someone had put a jack in her and was just cranking it again and again and again.
She had hit 66 feet when suddenly the growth of her breasts accelerated, and Ebbie could only look on with awe and fear as her ebony boobs ballooned stupendously out from her body. Even though she was still shorter than the 80-foot Ebbie, her tits stuck out even further, giant black nipples swaying about at their torpedo-like ends.
Shayna, still smirking, cupped one of her enormous thirteen-year old tits and gave it a squeeze, and to her surprise, found the tiniest bit of moistness there, the beginning of her own magnificent milk-factories coming to life. She kept this secret to herself, greedily wanting to control and contain her growth much like Meg had, yet she was not exposed to the same level of formula as the original Mega-girl, and could still control the emission of milk from her stupendous budding brown breasts.
She cooed and ran her the fingers of her right hand over the downy cloud of her pubic region, then moved her hand out to appreciate the newly acquired width and roundness of her right hip, its swollen brown mass filing her pink palm there. She giggled and bounced even bigger, looking up at Ebbie now from a height of seventy feet and still growing! She had had nowhere near the amount of milk Ebbie had and yet she was still rumbling up in rubbery pulses of growth, inexorably surging with size to her great delight.
She topped out at Ebbie's size. 80 feet. Then she smiled and topped out a bit taller. Then again to 88 feet. And that was it.
Amanda meanwhile had been too late. The rubbery growth sensation was totally gone from her freckled form, the remaining puddles of milk not being enough to really affect her at her new 55 foot size.
Nevertheless the greedy redhead came up with a plan.
Find the source of the milk.
Scanning the horizon, she sprinted off in the direction of Meg's Mountains.