Girl On Girl

Written as a commission for uvcatastrophe. Initial brief at the bottom.

Susanne and Lisa were best friends, and lovers. They were both tall, pretty, slim girls, but Susanne’s boobs were always slightly bigger. Not much, but enough for her always to hold it over Lisa. In a joking way, of course, but over the years, Lisa started to feel put upon. A little inferior. So she hatched a plan. She wasn’t going to be “Little Lisa” any longer.

“Hey, there are you!” cried Lisa, kissing Susanne as she sat down. They were at a dive bar in town; their favourite place to go on date night. Susanne was wearing loose sweat pants and black strap top – Lisa was wearing baggy red yoga pants, but had a big hoody on. She never wore hoodies – plus, it was pretty hot in here.

Lisa slid a gin and tonic over to Susanne. Susanne smiled and kissed the air, taking a sip. Lisa slowly drank her drink – which was oddly golden and bright – through a straw, never taking her eyes off Susanne.

After small talk, Susanne leant forward. She was wearing a push-up bra, and she put her arms under her tits, pushing them outward. They looked great – even bigger than usual. Lisa was already getting aroused. Susanne always did this when she wanted to fuck.

“Ready, Little Lisa?”, suggested Susanne, running a hand over her neck.

This was the moment Lisa’d been waiting for. She took one more sip from her drink, leant back, and unzipped her hoody.

Even in the dim light, Susanne’s eyes widened. Her previously slim, flat girlfriend was sporting large, round breasts! At a guess, they were about a D-cup, and beautiful and curved – looking really round and firm. Lisa could see Susanne’s cheeks flush with arousal, and it made her own nipples stand on end, poking out of the tight fabric. Lisa had picked the t-shirt to be just a little too small for her new tits, and they looked incredible – big, solid and round – squeezed into it.

“How?”…Susanne murmured.

Lisa said nothing, but took another sip of her drink. As the golden liquid shot up the straw and disappeared, Susanne suddenly saw something amazing – Lisa’s breasts, already so big and round and beautiful…were getting bigger. She was fixated on Lisa’s swollen chest, and looked in amazement as her tight t-shirt began to stretch further, as Lisa’s tits began to expand outwards.

It was impossible, but her beautiful, firm, round tits were bulging bigger and bigger, slowly inching outwards towards Susanne. The neck of the t-shirt was being pulled away from Lisa, as her chest slowly grew outwards, getting larger and wider with every passing second. When Lisa had unveiled her new tits, they protruded about five inches from her chest (“way bigger than mine, which were about two”, Susanne thought, grumpily), but now they were closer to seven inches straight out, and they were still growing. They were massive.

Susanne squirmed in her seat, feeling almost uncomfortably aroused. She loved boobs at the best of times, but big, swollen, growing boobs. It was almost too much for her to bear. Lisa smiled at her girlfriend’s arousal, and slowly, seductively, reached down to take another sip.

She clasped her mouth around the straw, never taking her eyes off Susanne, and sucked the golden liquid up to her. Susanne watched in amazement as her big tits grew bigger, seemingly blowing up like balloons, inflating with each passing second, drawing her tight t-shirt tighter and tighter, until the seams at the side began to stretch with the strain being put upon them.

Lisa’s chest was massive now – almost nine inches straight out. She looked like an inflated supermodel, and her t-shirt was really quivering to restrain her massive bust. She looked like she had two large watermelons on her chest, yet they retained such a pertness and height, it made Susanne want to fuck her right there in the bar.

“So…Little Lisa?”, Lisa said, raising an eyebrow.

“I can’t believe how…big you are”, stammered Susanne, getting more and more wet with each passing she second she stared at Lisa’s swollen – and still swelling – chest. It was gargantuan. And she wanted one too.

“But I was always the bigger one…”, was all Susanne could manage.

“Not any more”, smiled Lisa, taking another sip.

Her breasts were growing so large, their huge bulk almost rubbed against the table when she leant down to reach the straw. They swung like massive, packed bags in her stuffed t-shirt, which didn’t look like it was going to last much longer. Lisa leant back, stretching her arms over her head, and Susanne thought she was going to pass out with arousal. When framed like that, Lisa’s tits looked like really over-inflated beachballs, fit to burst. And they were still growing.

The sleeves of Lisa’s t-shirt was almost non-existent, as all available fabric was being called to the front lines, where the real expansion was taking place. Lisa’s flat belly was exposed as her t-shirt rode up, trying to contain the incredible growth that was taking place in her chest, but it looked like a losing battle. Her tits were just so huge now. They bulged so far outwards, they almost pressed into the glass of golden liquid on the table.

Susanne’s eyes followed the huge curves of Lisa’s chest, until they rested on the glass. This was what was doing it. Lisa saw her look. “Go on”, she said, encouragingly. “Try it.”

Susanne’s hands were shaking with lust as she picked up the glass. She eyes Lisa’s tremendous breasts – noting they were still swelling larger and larger – and looked at the glass. It was half full; certainly not half empty. She wanted to be full too. She wanted all her clothes to be full of her huge breasts, to burst out of them and grow larger and larger, bigger than everyone else. She looked once more at Lisa’s hugely swollen chest. She couldn’t believe it. She drank the whole thing.

“Susanne!” cried Lisa, with alarm.

Susanne said nothing, just looked at her, and smiled a devilish grin. If Little Lisa was gone, she’d be Swollen Susanne. She felt a tightness in her chest almost instantly, as the drink started to take effect. She looked down at her small breasts, crammed into a push-up bra and black tank top, and realised she may have been rash.

Straight away, she could feel her skin begin to stretch, as her boobs began to bulge outwards. They were already packed into her push-up bra, which was beginning to give even now. She felt the strap dig into her back, and saw the wonderful sight of her growing breasts bulging out of the small cups below, before there was a snap, and her bra pinged off.

Now she could just see her gorgeously firm, and slowly growing tits starting to fill out the black tank top she was wearing. Unlike Lisa’s t-shirt, this allowed for maximum cleavage, and she could see it growing already, as her already much bigger tits began to press together, due to the lack of space in her tight black top.

Susanne’s breasts bulged out a good four inches in front of her, and began to widen too, spreading out bigger and broader with every second, as her growth heightened. Her arousal grew even more acute as she felt her nipples expand. She looked up for a second, and saw Lisa’s face reflecting her own – this was clearly turning her girlfriend on just as much – if not even more – than it was her, and her girlfriend already looked like an overinflated super model. Just how big was Susanne going to get? She couldn’t wait to find out, and her hard nipples grew even harder at the thought, poking through the black fabric like bullets.

Susanne’s tits swelled and groaned, growing faster than Lisa’s had. Susanne had to be bigger. She had to the be the biggest. She looked down at chest, and saw her tits were now packed together as tightly as they could be – they were both so wide, starting to stretch out beyond her slim figure. She realised now, if someone saw her from behind, they’d see either side of her growing tits if her arms were up. The thought turned her on even more, and she felt her heart beat faster, as her tits bulged and swelled ever more.

They now jutted out about eight inches in front of her, and were close to resting on the table in their huge, swollen, round bulk. She stared in wonderment as they inched out, bigger and bigger and bigger, slowly sliding across the wood of the table, like enormous water balloons. She laughed at the thought, and they jiggled hugely, her twin masses of breastflesh wobbling in the dim light.

Lisa was so turned on by the whole thing, she couldn’t even think straight. She was dimly aware that her breasts were still growing, but how big they were now, she couldn’t be sure. Probably about twelve inches straight out – she knew was having trouble not knocking stuff over on the table, that much was sure – but all she could do was stare at Susanne’s bulging bust, and not finger herself there and then.

Susanne, for her part, was still growing. She was at about ten inches now, and showing no signs of stopping. Her top was ridden up to above her belly-button now, and was taken up entirely with attempting to contain her mammoth tits. They bulged out like two huge zeppelins, stretching and starting to tear her black top, which was never made for such humongous boobs. And still they grew, so round and firm and massive, inching forwards further and further.

Lisa’s tits were still going, too. She leant forwards, unable to control herself much more, and felt a dim crash, as their glasses were scattered by the massive, thirteen inch protruding tits that swung down and took up about half of the table. Her t-shirt was going to be destroyed soon – it was fairly tight when she’d first expanded into it – and the thought made her want to come on the spot. Her huge, round, impossible swollen tits were still wobbling and jiggling their way forward towards her girlfriend, whose humongous breasts were almost as large, and were expanding their way towards her. Suddenly, it struck her.

Grabbing Susanne’s arms, she looked into her eyes, and pulled her forwards. Even though the table was quite large, their tits were almost touching. And neither was done growing yet. Allowing her huge, wobbling mass to bulge forwards on the table, Lisa stared into Susanne’s eyes, and grew forwards, until the tip of one huge nipple brushed against the massive swell of one of Susanne’s engorged breasts.

Susanne was staring at Lisa, with a mixture of deep love and profound lust, as her tits slowly expanded further to touch Lisa’s. Suddenly, the intense pleasure of growing was doubled, as the two girl’s titanic chests pressed into one anothers, slowly but surely getting bigger and bigger and bigger with every passing moment. They saw each other’s tremendously huge breasts press into the other’s, bulging and swelling like cleavage, and once their nipples rubbed together, they knew it couldn’t last much longer.

Susuanne took her left hand, and Lisa took her right, leaving the other hands holding (as far as they could – they were slowly being pushed apart by their massive, still growing, tits) and moved them gradually under the table, between their legs. Neither was wearing their underwear – it was date night, after all.

With the intense stimulation of their nipples rubbing, their huge tits expanding, and their self-pleasuring, both Lisa and Susanne felt themselves being brought close to climax incredibly soon.

As their clothes began to tear for the last time, ripping open and finally letting their humongous tits burst into the open air, Susanne and Lisa looked each other in the eyes and came like no one else in the world existed.

They lay back, panting, two blown up goddesses with nearly eighteen inch chests struggling to fit in their seats, torn clothes hanging limply around their enormous figures.

Lisa looked at Susanne, who was smiling from ear to ear.

“Want another drink?”

Susanne gasped. Lisa was holding a bottle of golden yellow liquid.

Her mouth dry, Susanne nodded.

Lisa smiled and unscrewed the lid.

—

“So I’m a girl who is also into girls, and I think it would be neat to see that in one of the stories instead of the usual guy/girl pairing. That’s really my only concrete request, although I am also a big fan of the ” unsuspecting girl(s) in some kind of science experiment” trope I see in comics a lot.”

“I like the idea of a competition type thing, but I’m not interested in attribute theft that much – I prefer everyone to get to enjoy themselves 🙂 other than that, please feel free to do whatever you’d want!”

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