One Night Lifts

She saw her from across the club. Red hair, a shot glass in hand. There was a wild look in her eyes, but what stood out the most was her bust. Sally didn’t know how, but this lady had a bust size triple the size of her head. And she didn’t even look weighed down, she was walking and chatting like it was nothing. Her tits just swung around like it was nothing, it was like they were weightless. Before Sally could think deeply about it, the redhead caught her gaze. She smiled and raised a crooked finger, beckoning Sally over. Sally decided to not waste the opportunity, maybe she could get some questions out of this mysterious big-boobied chick.

...

“So lemme get this straight,” Sally said, her voice skeptical. “You’re full of nanomachines that are constantly inflating you with helium. And if you’re not careful, then…” Sally mimed floating away with her hand.

The redhead giggled. “Yeah, that about sums it up. If it wasn’t for my pump and ankle weights, I don’t know what I’d do.”

Sally downed the rest of her beer. “I’ll admit, I’m calling bullshit. You’ve got balloons stuffed in there. Name’s Sally.” She stuck her hand out for a handshake.

The redhead giggled. “Irene. Pleased to meet and eventually disprove you.” She looked out to the bustling club-goers and the congregation on the dance floor. “I can’t do that for a while though. Wanna dance?”

Sally let out a chuckle. “Sure, if nothing else, I enjoy a good romp. Might even have enough beers in me for another romp later on.” She saw Irene smirk at her crass implication as they filed out onto the dancefloor.

The thumps of the music’s beat echoed in Sally’s mind as she danced to the beat with Irene. Her suspicions had been right, Irene’s movements weren’t slowed down in the least by her breasts. In fact, she seemed lighter on her feet than some of the other girls. The two moved almost in a trance, the alcohol of the bar and the beat of the music lifting any worries from their minds. They began to move closer together, brushing up against each other with their movements. Sally felt herself growing warm as Irene seemed to deliberately be aiming her bust for Sally as much as possible. What got Sally the most however was just how soft and warm it felt. Definitely not balloons after all, was this chick telling the truth? She gave a glance over and stumbled over her dancing at what she saw. Irene was definitely bigger, her shirt was stretched out trying to cover her tits. Her nipples were poking through the front of the fabric, confirming that these weren’t balloons, these were a pair of fucking inflatable boobs. Sally looked up at Irene’s face, words failing her shock and realization.

Irene giggled and interrupted the silence between them. “Want to catch a taxi back to my place?” Her voice was tinged with lust given power by alcohol. Sally nodded silently, never taking her eyes off the pneumatic bustline that now offered a whole evening of fun.

...

The moment they had entered the house, they became a whirlwind of discarded clothing and groping hands. Together, they collapsed into Irene’s bed, naked bodies embraced in each other’s grasp. Sally had gone right for the prize; two round, soft, and perky boobs that Sally was sure were even bigger than earlier. Judging from Irene’s moans as Sally went for her nipples, their sensitivity was proportional to their size. Sucking and teasing a nipple, Sally was interrupted when a blast of gas suddenly erupted into her mouth. Before she could react, some of it went straight down her throat. Sally reeled back, coughing and sputtering. Looking up, she found Irene staring in a mixture of surprise and fear.

“Oh shit, I’m sorry, fuck it’s going to start any moment now, shit why did I have so many drinks I got careless…” Irene’s words came out a mile a minute, panicky and apologetic.

Sally held up a hand. “Whoa, hold up, what’s starting right now? You explained this at the bar but my memory is fuzzy. And distracted.” She gently traced a finger over one of Irene’s enormous breasts, admiring the vast curvature.

Irene seemed unfazed by this, her face dead serious. “The short version is that I’m full of nanomachines that produce helium in my body constantly. You just got a mouthful of them. Now they’re coded to my DNA and don’t last long in other people but still.” Irene motioned to her pneumatic bust. “You’re not gonna fit in a bra for a while.”

Sally stared at Irene, trying to take in everything she just said. She was gonna blow up like this chick was? “Uh, there any way to stop it, or I dunno, minimize it?”

Irene chuckled. “Well, there's no way to slow it down, but there are ways to speed it up. Soda, inhaling helium, and my favorite…” Irene suddenly lunged forward, pulling Sally into a deep kiss. Sally felt herself grow warm in the face at her sudden move, but she also felt something else stirring. Her chest felt funny, like something was poking her from the inside. She pulled back from Irene’s embrace and stared down, only to find there was a lot more skin blocking her view than before. Her breasts were perking up, no expanding, just like Irene had said.

Sally was at a loss for words. She reached up and cradled her tits in her hands. Sure enough, there was a pressure fighting back were she squeezed, her dark brown skin pulling tighter as gas gathered inside. Each pulse of growth rebounded across her entire body, as if every pleasurable nerve ending in her body was getting simulated all at once. Her breasts began to inflate faster, as if emboldened by the pleasure. This made the pleasure grow again, causing her breasts to grow more, an endless cycle of libido-fueled boob inflation. Sally looked up at Irene, who was wearing a deep blush and wide smile. Irene’s own assets were visibly growing now, obscuring more and more of her upper body with each passing moment. She moved closer, causing the two lusty women's breasts to squish against each other as they grew. Their skin squeaked as Irene leaned in as close as she could to Sally.

“Arousal,” Irene said, “drives the nanites crazy.” Before Sally could agree in response, Irene traced circles around Sally’s nipples before pinching them softly between her fingers. Sally shook and let out a loud moan, feeling an absolutely electric jolt of pleasure from the touch. Her breasts jumped in size, matching Irene’s pair before going even further. There was now an audible hissing in the bedroom as the ladie’s building arousal accelerated their bodie’s expansion. Inflating bustline met inflating bustline in a chorus of squeaking and creaking. As Irene began tracing a finger along her inner thigh, Sally could have sworn she felt her ass beginning to tingle as well.

...

The room was quiet except for the sounds of creaking rubber and hollow thumps as Sally and Irene gently floated along the ceiling. After several cycles of aroused inflation and orgasmic deflation, the duo's yo-yoing tryst had finally come to an end upon the ceiling. Sally had ended up with an hourglass figure that could put even the most silicone-enhanced adult film star's to shame. Irene on the other hand had inflated in her breasts, belly, and butt. She reminded Sally of a parade balloon, all blown up and buoyant. Below, the sweat covered sheets had several marks on it from the two’s romp before the helium in their bodies had hosted them into the air. Sally couldn't believe just how good it felt to be floating around, feeling the air push her body up. She looked over at Irene, who met her gaze with weary eyes.

“Wow,” Sally said.

Irene smiled and nodded. “Wow.”

The two drifted for a few moments more before Sally broke the silence once more. “So uh, you said you had a pump for this? Because I have a job interview later that I need to prepare for.”

...

The jacket groaned in protest as Sally squeezed her chest down. The office was empty besides her thankfully, but that didn't change how annoying this was going to be. Irene had said it’d be another 8 to 12 hours before the nanomachines died off. If only Sally hadn't decided to go clubbing the day before a job interview. “Well, maybe they'll hire me for my sex appeal,” she muttered dryly under her breath. Thankfully, before long, a secretary had come to fetch her, and Sally was led to the scientist she’d be assisting in her new lab job. They arrived at an office deep in the facility, and the secretary left Sally to her meeting.

Making one last check to see that her expanding bustline would be kept in check, Sally knocked and walked in. Irene made it about halfway through greeting her new lab assistant before the two were shocked silent.