Sinister's underground lab was a labyrinth of steel and shadows, the air thick with the acrid scent of chemicals and the hum of advanced machinery. Rogue, the super-powered southern belle of the X-Men, and Harley Quinn, the cupid of crime, moved silently through the dimly lit corridors, their senses heightened and their nerves on edge. They had been tracking Mr. Sinister for weeks, following a trail of genetic experiments and evil plots that had led them to this secret laboratory just outside St. Louis.
As they crept into the lab, Harley could barely contain her excitement. Her signature pigtails bobbed with each step, and she glanced at Rogue with a wicked grin. "Ready to bust up some bad science, Roguey?"
Rogue nodded, smirking slightly. "Let's find Sinister and put an end to this, ah've had just about enough of crawling through abandoned buildings for one lifetime."
They crept deeper into the facility, their footsteps echoing softly against the metal floors. Sinister's lab was a maze of high-tech equipment and glowing vials, each containing unknown substances that pulsed with an eerie light. As a former Victorian eugenicist who had been enhanced by Apocalypse himself, Sinister was as deadly and unpredictable as his own work.
As the pair turned a corner, they found what they were looking for--a large, reinforced door marked with biohazard symbols.
"This has to be it," Harley whispered, her eyes gleaming with anticipation. She pulled out a set of lock picks, and within moments, the door swung open with a hiss.
Inside, the lab was a chaotic jumble of scientific equipment, computers, and containment units. In the centre of the room stood a massive cylindrical tank filled with a swirling, glowing liquid. Rogue's eyes narrowed as she spotted several vials labelled with strange symbols. She didn't catch the words "Bimbo Virus" below them.
"Looks like we found Sinister's latest experiment," Rogue muttered, her voice tinged with disgust. "Shame that swamp-rat's already gone. Let's sort this place out and take the evidence back, maybe the Justice League will be interested."
Harley nodded, already swinging her mallet at the nearest computer terminal. "You got it, partner!" she shouted, the system exploding in a shower of sparks.
Rogue laughed. She hadn't meant that they should destroy the place, but hanging out with Harley Quinn meant you sometimes had to roll with things. Rogue lifted up a flotation tank full of liquid and, using her mutant strength, threw it through a nearby wall causing debris to fall around them.
As the pair wrecked the lab, alarms blared to life, the room bathed in neon pink flashing lights as the place began to crumble. "Strange choice of colour for an alarm." She thought. "Better we'd not let everything get buried." She grabbed one of the vials, intending to secure it for evidence, but as she did, a large tank in the centre of the room exploded, sending a cloud of the glowing pink liquid into the air.
"Rogue, watch out!" Harley shouted, but it was too late. The mist enveloped them both, the strange substance clinging to their skin and seeping into their bodies.
Rogue gasped, feeling a sudden, overwhelming wave of heat and pleasure surge through her. Her thoughts grew hazy, her body tingling with an unfamiliar sensation. She looked over at Harley and saw the same expression of shock and arousal on her face.
"W-what's happenin' to us?" Rogue managed to gasp, her voice breathy and strained.
Harley, her usual playful demeanour replaced by a look of confusion and lust, shook her head. "I don't know, but it feels... kind of amazing..."
The transformation was rapid and all-encompassing as the bimbo virus merged with the accelerant from the tank. Rogue's normally lithe figure swelled with exaggerated curves, her clothes splitting and tearing, straining to contain her newly voluptuous body. Her waist grew so thin so that her belt slipped down, resting on her shapely new hips. Harley's transformation was equally dramatic, her already curvaceous figure becoming even more pronounced, her lips forming a perfect pout, her skin and eyes glowing with a newfound radiance.
Their minds, too, were affected. The sharp, tactical thoughts that had driven them through the raid were replaced by a haze of pleasure and desire. They looked at each other, their expressions shifting from confusion to a shared, unspoken understanding. They both fought what was happening to them, but the tingling between their legs refused to be ignored.
"Ohh, we need to get out of here," Rogue said, her voice husky with arousal.
Harley nodded, her eyes dark with lust. "Yeah, before anything else gets blown up!"
They stumbled out of the lab, the alarms still blaring, their bodies tingling with the aftereffects of the virus. As they made their way back to the surface, they couldn't help but notice the way their new forms moved, the way their heightened senses picked up every sound and scent. With her last ounce of concentration, Rogue picked up Harley and flew at top speed to their rented apartment, trying desperately to ignore the urge to press her lips into Harley's even as the gymnast nuzzled against her, enjoying the unreal softness of her skin.
Once they reached the safety of their hideout, they collapsed onto the plush couch, their bodies still humming with arousal. They looked at each other, their minds growing increasingly clouded with arousal.
"Harley, we need to figure out what happened to us," Rogue said, her voice shaky but determined. "Those chemicals... Ah've seen that stuff before in the X-Men's files. Some kind of viral accelerant that Sinister uses to mutate people, but..." she looked down at her swollen tits and examined her perfect, talon-like fingernails with almost natural French polish colouring, "...ah've seen nothin' like this. It's like we got hit with some kind of bimbo virus!" She giggled at the idea, her mind already being altered just like her body was.