"Are you sure this will work, Blackjack?"
Morning Glory looked over the massive pile of gems with concern, then to the white cyberpony next to her. By happenstance, Blackjack and company had stumbled onto an old gem mine with a stockpile loaded with precious and slightly magical stones. After gathering a bunch of them in a big pile, Blackjack had an idea...something that scared Glory witless.
"Sure...I mean, it could work, right?" Blackjack mused, picking up a rough ruby an augmented hoof, "I've got all these crazy cyber-things in my belly. I think I can handle it."
"Okay, but take it slow," said Glory, "If you start hurting or your internal temperature spikes significantly, I'll..." Before Glory could finish her sentence, Blackjack had already hurled herself into the pile of gems and was chowing down as fast as she could. A flood of flavors exploded into the cyberpony's mouth, though they all carried a hint of dust from the mine. Probably wasn't healthy, but then again, Blackjack never really treated herself well in the first place. The gems in her bulging cheeks began to soften, her augmentations reducing them to a thick energy-rich goo.
*GLULK!*
Though melted, the gem goo still felt like a rock as it slid down Blackjack's throat to her tummy. She felt a tingling warmth as her augmented stomach got to work processing the gems.
 
"She's really gonna try pulling this off?" a blue stallion asked, dismissively looking at the mare gorging herself on gems.
"I don't think I can talk her out of this, P-21." Glory replied.
"Aw, quit your worrying! I wanna see if she burps a laser!" Rampage watched intently as Blackjack gulped down another lump of gem goo. Her stomach had started to bulge from the sheer volume of melted gems. Blackjack gripped her belly, groaning as she forced more gems into her mouth. The machines in her gut were working overtime, and it started to hurt a bit. However, she was just too damn curious to see what would happen if she had more...
 
"Ungf!"
Blackjack plunked down on her rump, clutching her aching belly. Her mechanical guts were already working on overtime, churning the slurry of gems into a surge of energy for her implants. She then felt something funny under her hooves. Looking down, she found her belly subtly swelling out, softening under her hooves.
"Oh! Interesting!" Glory yelped, "The gem processor is able to store excess power as energy-rich fat deposits...not exactly efficient, but..."
Before she could finish, Rampage shoved her out of the way. "You're kidding, right?" She said with a laugh "She can get fat off this stuff?" The buff pony pushed down on Blackjack's bloated belly, making the cyberpony groan louder.
"Urrgh! D-don't...nnnf...do that!" whined Blackjack. Rampage ignored her, squishing and squeezing her belly.
"Aw, don't be such a wuss, Blackjack," Rampage snorted, "Here, lemme get you a drink." At that, she pulled out a bottle of Wild Pegasus, Blackjack's favorite whiskey...
...Then crammed the whole bottle into her mouth.
"Mmmmf! MMMMFF!"
"Rampage!" Glory gasped, What are you-"
"Oh shut it, Glory," snapped Rampage, "This bitch's gut gizmos can handle it. Plus, I wanna see how fat she can get off this shit."
Blackjack's face went green. This was not going to end well...
 
Against Glory's complaints, more gems and the occasional whiskey bottle were shoved down Blackjack's throat. Whenever the poor cyberpony swallowed a load, Rampage would stuff another hooffull into her mouth, then hold it shut with an iron hoof until it melted, forcing her to swallow. As she ate, her stomach augs strained to digest the onslaught of melted gems, her belly groaning from the effort. The internal batteries powering her cybernetic rig were already maxed out, so every joule of excess power went straight to her fat deposits. Her rump grew wider and plumper by the second, but the real show was the bloated white mass of her belly. Her stomach rose like dough, squishing around the metal-clad hoof pressing down on it. Blackjack complaints devolved into pained moans,