The sun was high on this summer day in South Jersey and Katie was busy lounging in her back yard by her pool, as she was seen on every other day. She had sported a tiny, baby blue bikini top and matching bottom as she soaked in the sun, waiting for her friends to get there. Katie could be described as pretty, standing at 5’7 with B cup breasts and an ample bottom with a flat, athletic stomach. Her straight brunette hair hung down to her shoulders with her big sunglasses blocking her particularly beautiful blue eyes.
Katie had just gotten fully settled in when she received a text from her friend Kelsey saying that they were out front and with a smile, she hopped up and walked to the side gate. “Hey guys! Come on out back!” Katie said gesturing for her friends to come in. First to walk back was Kelsey, a short blonde girl with B cups and a similar, yet seemingly shrunken build than Katie. She smiled and immediately ran over to the poolside dipping her feet in. Her black bikini didn’t stand out too much, though that was to be expected with Kelsey. Following her was Jess, a black haired bombshell with D cup breasts and a well rounded ass. Though she had a minor potbelly, that didn’t take away from her sheer sexiness. Even her bikini added on to her already wonderful build, sporting a bombshell Victoria’s Secret push-up leopard top, with black thong-like bottoms. “Hey babe!” She said, kissing her on the cheek and rushing to grab an open chair to work on her already bronze skin.
“Hey girlies!” Another familiar, unmistakably squeaky voice arose from beyond the gate. Katie turned and by instinct, looked down only to get an eyeful of stunning, DD breasts, showing major cleavage from an entirely too small red bikini. “Oh wow, hey Sammy! Couldn’t keep the girls contained just once?” Katie asked with a laugh. Sammy returned a sly grin, “Come on Katie you know you gotta flaunt what you got,” she said, making a grab at Katie’s breasts. Katie recoiled and smacked Sammy’s, though not ultimately impressive, still nice ass as she walked by, holding the gate for the last girl. Alicia, the chubbiest of those in the group, stood around 5’3 with a shapely ass, thick thighs, a bit of a gut, and matching D cup breasts. Her hair was a dark brown, curly down to just above her shoulders. “Hey Alicia!” Katie said, embracing the girl. “Hey Katie! Let’s get this party started right!?” Alicia said smiling in her dark blue, sexy one piece.
After several hours just floating about in the pool, Kelsey decided it was about time to make this get together a little more exciting. “Ok this is getting really boring. Katie, do you have any like… water balloons or something? I feel lazy just sitting around.” Katie lifted up her over sized sunglasses and said, “Yeah of course they are under the sink.” Sammy suddenly shot out of her float, “You guys start filling those babies up! I’m gonna go get something from my car really fast!” And with that, Sammy ran out of the back gate towards her car. All of the other girls dried off slightly as Katie entered her house and pulled out a bag of multicolored balloons. Emerging from her house, she saw the other girls giddily pulling out the hose from the side of the house. Each darted towards Katie, nearly knocking her over and taking a handful of balloons from the bag. They filled each to at least a handful a piece and tied them off. The large bucket quickly was completely filled with water balloons by the time Sammy came back in through the gate carrying what appeared to be an energy shot.
“What is that stuff supposed to be?” Jess said, taking the clear 5 oz bottle away from Sammy. “Yeah it just looks like water to me,” Alicia peeped up. Sammy bolted forward and snatched the bottle back. “Oh this isn’t just any kind of water, it’s got a special chemical inside it, specifically designed to… well make things interesting in this little game,” Sammy said with a little devious smirk on her face, “Now before we start one of us has to drink this stuff, how about it girls? Rock, paper, scissors?” Sammy held up the bottle for all to see and each girl nodded in agreement and curiosity.
The girls arranged themselves in a circle and chanted “Rock, paper, scissors, shoot!” The first round resulted with Katie, Alicia and Sammy playing paper while both Kelsey and Jess played rock. Kelsey and Jess turned to face each other, only to result in Kelsey playing scissors and Jess playing rock. “Damn it! I wanted to watch first… what does this stuff do anyway?” Kelsey said picking up the bottle and taking the cap off. “Oh you will see any second, just drink it!” Sammy said impatiently. “Alright… here goes nothing.” Kelsey said, putting the bottle up to her puckered lips and taking the shot. “Tastes like… water… well that’s boring! Couldn’t even give it a fla…” Kelsey began before her eyes bolted down and her hands shot to her stomach which began to make a sloshing sound. “What’s that noise?” Alicia said coming close to Kelsey’s tight belly. “Yeah there wasn’t that much in there but… guys I feel funny.” Kelsey said with a hint of worry in her voice. She looked down at her arms, which took on a glossier look. She grabbed a piece of skin and pulled and was shocked as it pulled at least 3 inches away from her body. Just as she was about to say something her belly surged forward, causing her to stumble slightly and hit Alicia in the face with her suddenly huge belly.
“Oh my God!” shouted Katie as Kelsey’s belly surged past the size of a woman 9 months pregnant, her belly sloshing and gurgling as it bellowed forward with incredible speed. “Sammy what the hell did you do to me!?” Kelsey said pushing on her belly, only causing the water inside her to displace to her breasts and ass. The more she pushed, the bigger her breasts got, quickly surging out to M cups and her ass quickly surpassing Serena Williams size. Her hips and thighs quickly surged outwards, resembling tree trunks coming out of two overstuffed beanbag chairs. Sammy stepped forward and picked Alicia up before jiggling Kelsey’s continuously swelling belly, “I told you this is gonna make the game a lot more interesting! You’re gonna be one of the water balloons and whoever gets hit by you becomes the next one!” she said with a little too much excitement in her voice. “Are you insane?!” Kelsey screamed as her bathing suit merged into her breasts and ass which also merged into the sphere that was now her body, “I don’t want to be a bal-umph!” She said as her lips and cheeks plumped up, her hands and feet merging into her balloon body, as did her head.
“Wow…” Alicia said with her jaw dropped, a very common look among the girls now. Kelsey’s eyes bolted towards each of the girls as her body began to shrink down until she was the same size as the other balloons in the barrel. Sammy stepped forward and picked up the Kelsey balloon and placed her into the bucket, ignoring the tiny squeaks of protest coming from her little mouth. “Told you it would make things interesting! Whoever gets hit by Kelsey will become a balloon just like her and the last one of us standing obviously is the winner.” Each of the girls glanced around to each other, “I don’t know Sammy…” Alicia said timidly.
“Oh, don’t be such a baby!” Sammy said picking up a balloon and tossing it at Alicia, causing it to explode on contact, drenching her with water. Alicia squealed and braced herself for expansion before realizing that it must not have been Kelsey. “You bitch it’s on!” she said grabbing a balloon and hurling it at Sammy. Each of the girls grabbed balloons and began running around the yard, giggling and surprisingly having fun, even with the threat of becoming human water balloons looming over their heads. Jess leapt over a chair and pegged Sammy right in the ass. “Ow! You little bitch!” Sammy said playfully, tossing a tan and black colored balloon right towards Jess. The Kelsey balloon let out a tiny, high pitched squeak as she made contact with Jess’s large breasts before erupting into a strangely large amount of latex shards raining around the girls.
Jess immediately got covered in an absurd amount of liquid and felt the effects immediately. “Oh shit…” she said before her D cup breasts surged forward to G cups in a matter of seconds. “Oh by the way… the transformation isn’t the same for everyone…” Sammy said watching Jess stumble around, cupping her growing breasts in her petite hands as they push her fingers apart. “Wow guys this… oh god… this feels really good.” Jess said, playing with her nipples while she could still reach around her growing breasts. With another surge, her body lurched forward and propelled her to the ground. Jess let out a slight eek as her breasts hit the concrete, but instead of popping, her breasts shrank instantly and all the water rushed to her ass, snapping off her bottoms as the two orbs began to grow. “What… the hell is… oh god yeah I don’t care, someone flip me back over! I like the boobs more!” Jess said, unable to get up. The three remaining girls flipped her over and again the water rushed back to her breasts, already enough to keep her on the ground. Then, her stomach, legs, ass and arms seemed to begin to deflate, getting sucked into her enormous breasts. Letting out several moans, Jess’s head sank into her cleavage and vanished with the rest of her body, into her breasts. Her tits seemed to almost morph together, maintaining the shape and definition of the cleavage, but becoming one balloon as that too shrank down. Sammy rushed forward again and placed her in the bucket. “Fair is fair right?”
Again, the game commenced, each girl now excited to be the cause of the other to blow up. Each one looking to cause Jess to explode and hopefully finish her pleasurable ride. Alicia was the most defensive out of the girls, hiding behind chairs and pool toys to avoid being blown up. “Bring it on girls!” Alicia said. Katie and Sammy just looked at each and other smiled with understanding. “Let’s flank her, Sammy said, clearly holding up the small breasts that were Jess in her palm. Katie smiled; charging to the right of the chair Alicia was hiding behind and nailing her with a balloon, causing Alicia to retaliate throwing one herself. This gave Sammy the perfect opportunity to rush forward and toss the breasts at Alicia. The girls could’ve sworn they heard an orgasm as Jess exploded into tiny pieces, drenching Alicia as her face dropped. “Figures right, just go ahead and make the chubby one even bigger!” Alicia complained as she felt a tingling throughout her body. She was even different than the others, her body seeming to get puffier all around, but focusing mostly on the belly. She began to shrink immediately as her minorly swelling body sank into her center, making that round out as she got smaller. “This is so cool!” Alicia said, her voice changing in pitch as she got smaller and smaller.
Before they knew it, Alicia was nothing more than a tiny belly balloon, with a small belly button in the center. “Looks like it’s just me and you now” Katie said deviously to Sammy. “Not for long!” Sammy said lunging at Alicia. Katie pounced on top of her as the wrestling match for the balloon commenced. Each of the girls tumbled around on the group, fighting for control as their bathing suits got snapped off in the confusion. Katie eventually got the upperhand and tried to force the balloon from Sammy’s grip. “Give it to me!” Katie said. “Not in your life!” Sammy strainfully said before the balloon burst in her grip, drenching Sammy in the water.
“Damn… Looks like you win Katie; be gentle” Sammy said with a wink as her DD breasts swelled out. Katie decided to stay on top of her for the ride, her breasts quickly pressed up against hers, forcing Katie into the air as Sammy’s belly attempted to catch up. Quickly progressing to 3 feet, her breasts and belly sloshed as Katie wiggled around, listening to Sammy’s moans of approval. Her ass began to force Sammy into an upright position as it too joined in on the growth. Katie wiggled forward and sank into her expanding cleavage and placed a gentle kiss on Sammy’s lips, “It’s been fun,” Katie said, feeling her friend begin to round out and shrink down. “Do whatever you want with me,” Sammy said before her lips puffed up and her body began to sink in on itself until there was nothing but a voluptuous balloon left under Katie’s flat stomach.
She stood up, picking up the Sammy balloon and tossing it back and forth to herself. “What the hell am I gonna do now… All my friends are little shards of latex on the ground and I’ve got the house to myself… Well if you can’t beat ‘em join ‘em!” Katie said, lifting Sammy over her head and squeezing the balloon to the point of bursting, raining down the strange liquid and shards of her best friend down on her. Katie looked down and noticed her B cups slowly swelling out to C’s and soon after D’s. “Thank god, I’ve been dying for some nice curves” she said, cupping her breasts and shaking them in her hands, the liquid sloshing back and forth. Her ass and thighs began to bulge outward, giving Katie an hourglass figure to die for before her claves swelled and even her feet gave a nice little bulge. Katie noticed that with every inch she grew out, she also grew up. Soon standing at 7 ft. tall, Katie’s body now puffed out in every direction. Faster and faster she grew, soon passing 8ft… 9… 10… Her body rounding out and tensing up. “Oh god yes, faster, bigger, man Jess was right this feels amazing! Bigger… bigger!!! BIGGER!!!” Katie said as she reached her limits and exploded all over the lawn, flesh colored bits raining from the sky, drenching her surrounding houses, and overflowing her pool.