Chapter 13: Breaking Limits
The sterile chill of the Batcave seeped into Zatanna’s skin, a stark contrast to the penthouse’s warmth a week prior. Emergency lights cast long, skeletal shadows across the cavernous space, illuminating the polished steel of the milking station Bruce had modified. The familiar scent of ozone, leather, and damp stone filled her nostrils. Bruce’s hands, warm and sure, guided her towards the apparatus. "Perfect again," he murmured, his thumb brushing lightly over the small, neat bud nestled between her thighs. "Tiny. Shy. Ready to be remade."
He secured her wrists into padded cuffs above her head with practiced efficiency, the click of the locks echoing softly. The spreader bars followed, cold steel against her inner thighs, forcing her legs wide open, exposing her completely. Zatanna shivered, anticipation coiling low in her belly. Bruce knelt before her, his dark eyes intense in the low light. "Tonight," he stated, his voice a low rumble that vibrated through the stone floor, "we break your record. You don't stop cumming until that perfect little clit is jutting out like a perfect little cock. Understood?"
"Yes, Bruce," she breathed, her voice already thick with arousal. She watched his hands move with focused precision. First, the small, gleaming vibrating sound. He coated it liberally with slick gel, the coolness making her gasp as he pressed the tip against her urethral opening. "Easy," he soothed, though his command brooked no hesitation. With slow, deliberate pressure, he slid the thin probe deep inside her piss-slit. The initial intrusion was sharp, unfamiliar, then settled into a low, insistent hum that resonated deep within her core. "Fuck," she hissed, her hips jerking involuntarily against the restraints. The vibration wasn't painful, just intensely present, buzzing against sensitive internal walls she rarely acknowledged.
Next came the silicone plug. Bruce warmed it between his palms before pressing the bulbous tip against her tight rosebud. "Breathe out," he instructed. She obeyed, exhaling sharply as he pushed it steadily inward. The stretch was significant, filling her ass completely, a solid, unyielding presence that anchored her. Combined with the internal buzzing from the sound, it created a disorienting, overwhelming fullness. Her cunt clenched instinctively, slickness already soaking her inner thighs.
Bruce stood, moving to the console beside the milking station. He activated the automated pump. A low, mechanical growl filled the air as the clear silicone suction cup descended, hovering just above her exposed clit. "Watch the screens," he commanded, nodding towards the large monitors flickering to life. "Narrate. Every fucking second."
The screens showed multiple angles: a close-up of her tiny, pink clit nestled in its hood; a wider shot of her spread pussy, glistening wet; and crucially, a replay sequence starting from the beginning of her training weeks ago. It showed her clit small and unassuming, then began fast-forwarding through the sessions – the sybian throne, the relentless vibrations, the pumping – showcasing its gradual, astonishing transformation into the swollen, needy pearl it had become. Now, it was back to its delicate, miniature state.
The suction cup descended, sealing itself over her clit with a soft thwup. The gentle tug was immediate, a focused pull that made her gasp. "Oh god," Zatanna moaned, her eyes glued to the close-up screen. "It's... it's so small again. Like it was before... before you started making it hungry." The pump pulsed rhythmically, the pressure increasing incrementally. The replay continued on another screen, showing her clit engorging rapidly under similar suction weeks ago. "Look at it," Bruce growled, his voice tight with arousal as he watched her. "See how it grew? How it wanted to be big? To be used?"
The suction intensified. Zatanna whimpered, her hips straining against the bars. The vibrating sound buzzed relentlessly inside her urethra, a maddening counterpoint to the pulling sensation on her clit. The plug in her ass felt massive, immovable. "It's... pulling," she stammered, forcing the words out. Her eyes flicked between the live feed and the replay. "It feels... tight. Stretched. Like... like it remembers being big. Like it wants to be that big cock again." Her voice hitched as the pump cycled again, drawing her clit out further. On the screen, the tiny bud was visibly elongating, the pink flesh darkening slightly under the tension. "It's... growing," she breathed, wonder mixing with desperate need. "Getting longer... thicker... oh fuck, Bruce, it feels so sensitive!"
The replay showed her previous swollen clit, throbbing and huge. Bruce adjusted the pump settings. The suction became stronger, faster. "Cum for me, Zee," he ordered, his knuckles white where he gripped the console. "Cum around that sound. Cum while it stretches. Cum while you watch yourself become what I want."
The combined assault was overwhelming. The deep internal buzz vibrated against her G-spot, amplified by the solid plug. The relentless suction pulled her clit taut, stretching it beyond anything she'd felt before. Watching its transformation on screen, seeing the shy bud morphing into something thick and prominent, pushed her over the edge. A guttural cry tore from her throat as her body convulsed. Her cunt clenched violently around the vibrating intrusion, milking it, while her clit pulsed wildly within the suction cup. Slick fluid gushed from her pussy, soaking the leather pad beneath her. "Cumming! Fuck! Cumming!" she screamed, her head thrashing back against the restraint.
But Bruce didn't stop the pump. "Again!" he commanded, his voice raw. "It's not big enough yet! Not hard enough! Cum again!"
The orgasm hadn't fully subsided before the relentless suction and vibration dragged her back towards the precipice. Her clit, already swollen and extended from the first climax, was now a throbbing, dark pink nub protruding nearly half an inch, stretched taut by the pump. The replay showed its previous massive state, a taunting goal. "It's... it's so big," Zatanna panted, tears of overwhelmed pleasure streaking her cheeks. "It hurts... but good... so fucking good... feels like it's gonna burst... like a little cock..." She watched, mesmerized, as the live feed showed the pump pulling it even further, the tiny shaft-like protrusion engorging, becoming firm. "Oh god... yes... make it big... make it your little cock..." Another orgasm ripped through her, longer, deeper, wracking her body with violent tremors. More fluid splashed down her thighs.
Bruce watched the monitor intently. Her clit was now a distinct, rigid protrusion, jutting proudly from its hood, flushed deep red, almost purple at the tip under the relentless suction. It matched, even surpassed, its size in the replay. He slammed the pump off. The sudden release of suction made Zatanna sob, her oversensitized clit throbbing painfully. He swiftly deactivated the sound, the blessed cessation of internal vibration leaving her trembling. He gently removed the suction cup, then carefully extracted the sound and the plug.
Zatanna sagged in the restraints, utterly spent, drenched in sweat and her own cum. Bruce uncuffed her wrists and ankles, catching her as her legs buckled. He gathered her close, his strong arms supporting her trembling body. Her transformed clit pulsed visibly against his thigh, a thick, hard little shaft. He kissed her temple, his voice rough but tender. "Look at it, Zee," he murmured, guiding her gaze downwards. "Perfect. My perfect little cock." He traced a reverent finger along its heated length, making her whimper. "You broke every record." He held her tighter, his lips brushing her ear. "Just wait until Gotham sees what I've made you."