Video game character sliders, but they're changing a real person's proportions.
"Ugh, aren't you guys done yet?! When is it going to be my turn?"
The last hour had been transformative for Dana, in a very literal sense. Ever since her roommates had discovered this slider thingy, Dana had been their guinea pig. At one point, she had towered over them at a monstrous eight and a half feet tall, and the next, she was craning her neck just to see their faces as they looked down at her two-foot-tall frame. Her weight had ranged from barely over eighty pounds to nearly five times that, with the weight shifted from her belly to her tits to her ass and then back again. Her hair had been every color of the rainbow and, for a few bizarre—yet strangely exciting—moments, she had even had an eight inch cock swinging fat and heavy between her legs. Surely now, though, they must have been out of options. They must have been getting bored. They had reset her body back to normal and were pumping up her tits yet again.
None of the two women looking at their little console looked up. Frida waved a dismissive hand in Dana's direction. "Yeah, yeah, in a minute! Carly just found the debug menu."
A chill took hold of Dana's spine. "Debug menu? What do you—" Clarity came a moment later in the form of her tits suddenly ballooning outward. The sudden weight on her chest nearly pulled her off her feet, her slender arms rushing up from underneath to catch them. Their softness spilled over her arms as they squished in her embrace. Frida and Carly gasped softly, looking back and forth between the screen and their now exceedingly busty roommate. Dana let out a grunt of exertion as she held her tits aloft. "G-guys! W-what the—uuunnff!—what the h-hell?!"
Carly piped up, unable to conceal her grin. "The debug menu opens up a whole new range of options, one of which being..." Her grin widened. She tapped a button on the screen and, slowly, Dana's tits began to expand again. "Removing the upper limit on the sliders~"
Panic was setting in for Dana as her legs started to tremble. The weight was getting to be too much for her and, in a few moments, she wouldn't be able to handle it. "H-hey! It's g-getting kinda h-hard to stand over here!"
Frida wrested the controls from Carly and, sure enough, Dana's tits shrank back in her chest. They were still unusually large by the time they stopped, but at least Dana could stand without worrying about falling over. She started to thank Frida for rescuing her, but Frida cut her off.
"Oh, wait, hang on! What does this checkbox do?"
Dana didn't like the sound of that. As soon as Friday's finger hit the screen, she felt her tits change. They weren't growing like they had been before and they definitely weren't shrinking; they were almost tightening. Instead of the soft tits that hung from her chest, they were pulling upward, their mass gathering together. Her skin pulled taut as her tits solidified. Dana gave one of them an experimental squeeze. A minute ago, her tits had been soft enough to spill out over her arms, now they were so firm that her fingers could barely make a dent in them. Firm and round, almost spherical.
Carly was the one who finally said it. "Oh, my god! Dana's got bimbo titties!"
Embarrassment flushed hot in Dana's cheeks. "D-don't call them that!"
Frida giggled. "Well, she's going to need some lips to go with her titties, don't you think?"
A protest formed in Dana's throat but it faded away as it reached her plumping lips. They grew and expanded, pushing outward from her face as they formed a permanent set of duck lips. A keyhole gap opened between them.
"Whu' uh fwuck! Mwuh wips! I cawn e'en tawk wike dis!"
Carly's eyes went wide. She glanced at Dana and bit her lip before turning toward Frida and showing her something on the screen. Frida's dawning realization was followed by a wicked grin and a nod that made Dana sweat. "Whu'? Whu' id i'?"
The two women giggled. Carly looked at Dana. "Well, I was just thinking that you wouldn't need to talk if you weren't so smart, is all."
A gasp opened Dana's lips as wide as they could go. "Nuh! Nuh uh! Don' 'oo fuhkin' dawe! Don'... e'en... fink abow'... i'..."
The light behind Dana's eyes slowly faded and, in her mind, she could feel her thoughts fizzling away. She tried to pull up memories but nothing came, just blankness and emptiness. Confusion furrowed her brow for a moment as she struggled to remember who she was or what she was doing or who those two pretty girls were in front of her, but that confusion was soon dissolved away. Dana's arms fell to her side and her jaw rested slightly open, drool beading on her lips before rolling down her chin.
Finger still hovering over the slider, Carly swallowed. She looked at her braindead bimbo roommate and then back to Frida. Do you, um... Did we over do it, do you think?"
Frida, for her part, was biting her lip. Her hips were squirming underneath her and a hand was not-so-subtly rubbing her own tit as she looked at Dana's bimbofied, brainless body. "H-hey, uh, Carly? We don't have to change her back right away, do we?"