Mines + Mountains

 The valley between Lara's breasts glimmered with beads of sweat as she swung her pickaxe into the mine wall. The rhythmic clang of metal on stone echoed through the winding tunnels, mingling with the grunts and shouts of the other miners. 

Lara paused, leaning on her tool to catch her breath. Wiping her brow, she glanced over at her friend and coworker, Sadie. Sadie's ample bosom strained against her dirt-smeared coveralls as she shoveled rubble into a cart. Lara smirked, remembering how they had jokingly placed bets on whose breasts would swell larger when they had first arrived at the isolated mining town. 

That had been nearly a year ago, back when Lara was as flat as a board. Now, she had trouble squeezing into her old bras. The unique radiation emanating from the glittering mineral veins had a strange effect on the women who worked there, gradually enlarging their breasts over time. Lara and Sadie were no exceptions. 

Sadie smirked back, eyeing Lara's newly enhanced curves. "Getting a bit snug in there?" She teased.  

Lara glanced down at her coveralls, the buttons strained near to bursting. "Maybe it's time I see the town tailor about letting these out again."

The two women laughed, falling back into their work. The friendly competition between them spurred Lara to push herself harder, determined to outgrow Sadie's impressive endowment one day. She imagined how it would feel to lug around two massive mounds of feminine flesh, jiggling and wobbling with her every movement. A pleasurable tingle ran through her body.

At the end of the shift, Lara stripped off her dirty coveralls, her swollen breasts finally free. She gingerly cupped them, fingers sinking into the soft flesh. They were tender, the skin stretched taut. Carefully, she peeled off her bra. Angry red lines marked where the cups had dug into her flesh. 

Lara sighed. She would have to visit the company doctor again. Her bras never seemed to fit for long these days. Not before her growing breasts inevitably outgrew them.

The doctor listened to Lara’s concerns, clinically examining her chest. “Hmmm, yes. We’re going to need to increase the cup size again.”  He opened a closet full of bras. “Let’s try this.”

Lara flushed as she donned the massive cups. Her breasts swam inside them. The doctor nodded in satisfaction. “That should accommodate your growth for a while yet.”  

Lara shifted, the heavy weight pulling at her shoulders. She looked in the mirror. Though big, the bra provided blessed support and relief. Her swollen breasts sat high and proud.

Over the next few weeks, Lara worked diligently, keenly aware of her chest ripening with each passing day spent near the shimmering mineral veins. The tingle of growth had become a constant companion.

On her next visit to the doctor, he whistled under his breath. “My dear, you’ve blossomed since I last saw you!” 

Lara smirked proudly as he took her measurements. Though she still lagged behind Sadie, the gap was steadily closing. 

Again, the doctor provided her with larger bras to contain her burgeoning bosom. Lara stretched and molded the massive cups over her breasts, thrilling at their size. She imagined the lustful looks she’d get in town, her new endowments straining the limits of modesty.

Rumors swirled that some of the most experienced miners sported truly massive breasts. The kind that drew stares and sent pulses racing. Lara dreamed of the day hers would rival those legendary busts.

The friendly competition between Lara and Sadie grew more intense by the day. In the depths of the mine, they drove each other to work harder and longer than ever before. 

At shift’s end, they openly compared their swollen curves, searching for any sign one was outgrowing the other. Lara took fierce pride in each new inch of cleavage she displayed.  

One evening, as the setting sun painted the mountains gold, Lara strode into town, drawing appreciative looks from the miners and shopkeeps. She smirked, thrusting out her chest. The weight of her swelling breasts caused them to bounce and sway with each step.

Nearing the saloon, Lara gasped as Sadie emerged, newly ample bosom on full display. She had changed into a low-cut dress, breasts spilling over the top. Lara flushed, jealousy warring with admiration for her friend’s audacious display. 

Sadie grinned mischievously. “Like what you see?” She teased. “I figured it was time to give the girls some fresh air after a long day’s work. Care to join me for a drink?”

Lara laughed, shaking her head. “You look like you're about to pop out of that dress! Maybe I'll take a page from your book though." She gave her chest a little jiggle. "We've earned a night on the town."  

Arm in arm, the two buxom beauties entered the saloon. A hush fell over the rowdy crowd as all eyes fixed on their impressive endowments. Blushing fiercely, Lara ordered drinks, thighs squeezing together under the intensity of the stares.

As the night wore on, the miners' gazes grew ever bolder. Lara shifted, hyper aware of her swollen breasts. The tingling sense of growth seemed to intensify under the attention. 

Across from her, Sadie casually hefted her heavy bust to rest atop the table. Lara flushed, the lewd display igniting her competitive fire. With a grunt, she lifted her own breasts onto the tabletop, biting her lip at the strain of their newfound size. 

Gasps and cheers erupted at the dueling displays. Patrons crowded close, eyes glued to the women's exposed cleavage. The radiating mineral had done its work well. 

Heart pounding, Lara arched her back, presenting her breasts for the hungry stares. She thrilled at the sensual power of her new curves, if somewhat surprised at her own daring. 

Glancing at Sadie, she knew they had awakened something in themselves and each other. A desire to outgrow, outshine, to become more woman than the other. 

Lara awoke groggily, head pounding. Memories of the saloon flooded back. She gasped, arms crossing over her aching breasts. The tingling sense of growth felt almost electric now. Just how much had she swelled last night under the charged atmosphere?

Heart racing, Lara hurried to dress, wincing as she struggled to contain her expanded curves in last night’s outfit. She had to get to the doctor for larger bras before her shift started. 

Lara dared not be late. She had to mine more than ever if she hoped to outpace Sadie. The game had changed. Their breasts had become instruments of competition now, and Lara needed hers to be the biggest.