Chapter 18 — Good Little Girl
Elara sat at her desk, her quill hovering over the parchment as the professor droned on about the intricacies of protective incantations. The words blurred before her eyes, her mind far from the classroom. Learning spells was grueling, but today, it wasn’t the complexity of magic that had her distracted—it was something far more primal.
She shifted in her seat, trying to ground herself, but it was no use. The rune that bound her and Quinn together pulsed beneath her skin, a tether that refused to let her focus on anything else. Breakfast had been... intense, to say the least, and though she’d been changed and was now dry, the memory lingered.
Even though Quinn wasn’t in this class, she wasn’t even in the same wing of the academy, Elara could feel her. It was like a second heartbeat, a constant awareness of Quinn’s emotions, even faint echoes of her physical state. And right now, Quinn was struggling—desperately trying not to lose control, not to poop herself.
Elara’s fingers tightened around her quill, her breath shallow. That should’ve been a passing thought, something to brush aside with mild concern or even discomfort. But the rune had other plans. It twisted her perception, warping what should’ve been a neutral—or at least unpleasant thought—into something else entirely.
A strange heat coiled low in her belly, an excitement she couldn’t explain or justify. Knowing Quinn was on the brink, teetering on the edge of humiliation, sent a thrill through her that she didn’t want to acknowledge.
She bit her lip, staring blankly at the incantation she was supposed to be memorizing. Her thoughts kept drifting back to Quinn, to the tension she could sense building in the other girl. Every moment Quinn held off, fighting against her body’s demands, only made Elara’s anticipation sharper. It was maddening—the longer Quinn resisted, the more intense this unwanted arousal became. Her thighs pressed together instinctively under the desk, a flush creeping up her neck as she tried to push the sensation away.
“Focus,” she muttered under her breath.
But how could she? The rune hummed in her veins, amplifying every fleeting pulse of Quinn’s desperation into something electric. She could almost picture it—Quinn squirming in her own classroom, cheeks flushed with effort, hands gripping whatever surface she was near. The thought made Elara’s heart race faster.
“What is wrong with me?” she whispered to herself, shaking her head slightly.
She didn’t want this. Didn’t want to feel this twisted excitement over something so humiliating for both of them. But the rune didn’t care about what she wanted.
Her gaze darted around the room briefly, making sure no one noticed her distraction. The other students were hunched over their work, oblivious to the storm brewing inside her. She forced herself to pick up the quill again, scratching out a half-hearted attempt at copying a spell. But deep down, she knew it was useless. All she could do was wait—wait for Quinn to either hold on or give in—and dread how much worse this feeling would get when she did.
“Elara! Are you planning on just sitting there staring off into space, or are you going to finish reading the passage?”
Elara jolted at the sharp tone of her professor’s voice cutting through the haze in her mind.
Her face burned as she grimaced, the blush creeping up her cheeks. “I’ll finish it,” she said, her eyes dropping to the open book on her desk, the words still a jumbled mess she couldn’t focus on.
“What’s wrong? Your mind elsewhere?” the professor asked, tilting her head with a knowing glint in her eye, one hand resting on her hip.
Elara nodded weakly, her breath hitching. “I’m just thinking about…” Her voice trailed off into a low groan, her hand instinctively pressing against her abdomen. It wasn’t just the echo of Quinn’s massive cramp rippling through her, though she felt the tight, urgent ache as if it were her own. No, it was the other sensation, the pulsing need between her thighs, that made her fingers tremble. The coil of pleasure inside her tightened further, threatening to snap at any moment.
The professor smirked, shaking their head with a faint chuckle. “I would think by now, you’d know not to let that distract you from your work.” She tapped the edge of her book with a pointed finger. “Come on, focus. Relax, child,” she scolded lightly before turning to move on to another student.
Elara clenched her jaw hard, biting back a moan that threatened to slip out. “Fuck,” she whispered under her breath.
She wanted—no, needed—Quinn to just let go already. The thought of the other girl losing control, of giving in to the inevitable, sent shivers of raw pleasure racing down her spine. Her body was on fire, every nerve alight with anticipation. Quinn holding on like this was pure torture. Elara shifted in her seat, acutely aware of how soaked she was, how desperate and needy her sex had become under the influence of the rune’s twisted magic.
Her fingers gripped the edge of her desk, knuckles whitening as she tried to regain control of herself.
Elara squirmed in her seat, the wooden chair creaking. A small, involuntary whimper slipped past her lips as the sensation of Quinn teetering on the edge of losing control intensified. Gods, she wanted Quinn to just let go, to fill her diaper. The thought alone sent a sharp jolt of heat through her core.
Was this what Quinn felt when Elara was in that same desperate state? No wonder she’d been begging.
Her hand slapped over her mouth, stifling another moan that threatened to escape, but it was too late. The professor’s sharp gaze snapped to her.
“Elara!” she barked, shaking her head with exasperation. “If you can’t keep your hands on your book, if you can’t keep yourself under control, put in your pacifier. Now.”
Elara whimpered again, her cheeks flaming with humiliation as she felt the weight of curious and amused stares from the students around her. It was always easy to laugh when you weren’t the one in the hot seat, wasn’t it? Their smirks and hushed whispers only made her shrink further into herself.
With trembling fingers, she reached into her pocket and pulled out the pacifier—Mommy’s pacifier. She hadn’t needed to use it since the rune had been altered. Reluctantly, she held it in her hand, dreading the act of slipping it between her lips in front of everyone.
But what gripped her attention wasn’t the pacifier itself, it was what pulsed through her connection with Quinn.
As her fingers curled around the smooth silicone, a sudden pull tugged at her senses. Quinn was growing excited. Not just a faint flicker, but a building heat that mirrored Elara’s own. Was the rune twisting this too, amplifying Quinn’s need to go potty into something more?
No… it wasn’t Quinn’s physical desperation triggering this response. It was Elara’s action—the simple act of holding the pacifier was doing something to Quinn.
She could feel it clearly now: Quinn shifting in her own seat somewhere across the academy, a growing excitement blooming between her thighs. The sensation echoed back to Elara, intensifying her own arousal until it was nearly unbearable. Her breath hitched as she stared at the pacifier in horror.
“Oh no…” she whispered to herself, barely audible over the rustle of pages and quiet murmurs in the classroom.
The pacifier trembled slightly in her grip. She knew putting it in would likely push Quinn further—and herself along with it—but ignoring the professor’s order wasn’t an option either.
“Any day now,” the professor snapped from across the room, arms crossed and impatience etched into every line of their face.
Elara swallowed hard, her pulse racing as she slowly lifted the pacifier to her lips. The moment it touched them, a shiver ran down her spine, and through the rune’s bond, she felt Quinn gasp—a sharp, needy sound that reverberated in Elara’s mind. Her thighs clenched together instinctively under the desk, heat pooling faster than she could control.
“Fuck,” she breathed around the silicone now nestled in her mouth, muffled but still audible to those closest to her.
A few students snickered quietly, but she barely noticed. All she could focus on was Quinn—the way her excitement spiked even higher, mirroring Elara’s own mounting desire. And beneath it all, that torturous edge of Quinn still holding on, still fighting against losing control.
It was driving her insane. “Just do it already,” she thought desperately, unsure if she meant for herself or for Quinn.
Every second dragged on like an eternity, each pulse through their connection tightening that coil inside her further until she was sure it would snap right there in front of everyone.
Elara’s body trembled as the sensation of Quinn’s moan vibrated through their connection. The thought of nursing the pacifier, knowing it was stoking Quinn’s excitement, made her pulse race even faster. She could feel Quinn enjoying it, reveling in the act through their bond, though it wasn’t quite enough to push her over the edge. Still, the shared arousal was thick, almost tangible, wrapping around Elara like a heavy fog.
But then, in that haze of distraction, it happened.
Quinn lost control.
Elara’s breath caught as a searing, white-hot spike of pleasure stabbed through her core the moment Quinn gave in and pooped her diaper. A gasp tore from her lips, muffled by the pacifier that had sealed itself to her mouth, trapping the desperate sounds she couldn’t hold back. Her eyes squeezed shut, tears of overwhelming ecstasy leaking down her cheeks as wave after wave crashed over her.
The more Quinn went, the higher Elara’s pleasure climbed. Each sensation from Quinn—every warm, messy push—translated into sharp bursts of bliss that rocked her body. Her hands gripped the edge of her desk, knuckles white, as she fought to stay silent.
By the time Quinn finally finished, Elara was utterly spent, having ridden out not one, but three shattering orgasms right there in the middle of class. She slumped back in her seat, chest heaving, post-coital bliss washing over her in soft, lingering pulses.
Her mind drifted hazily, wishing with an aching desperation that she could be with Quinn right now. To feel the weight of her diaper under her hands, to see the mess she’d made up close, to whisper words of praise into her ear—tell her how good she’d been, how perfect…
She stopped herself mid-thought, a jolt of clarity cutting through the fog.
What was she thinking?
This wasn’t her. This raw, consuming need—it had to be the rune twisting her desires, amplifying them beyond recognition. But distinguishing between what was truly hers and what was forced upon her felt like grasping at smoke. The line blurred so completely that even questioning it seemed pointless. Her body still hummed with aftershocks, and deep down, part of her didn’t care where the feelings came from.
She just wanted more.
Around her, a few students cast sidelong glances, smirking or whispering behind their hands at her flushed face and dazed expression. The pacifier still sat snugly against her lips, muffling any chance of explanation. Not that she could form coherent words right now anyway. All she could do was sit there, caught between shame and lingering desire, feeling Quinn’s own satisfaction echoing faintly through their bond.
Elara hurried out of the classroom as soon as the bell signaled the end of the session, her book shoved haphazardly into her bag. She was among the first to slip through the door, eager to escape before the professor could call her back for another lecture or worse. She couldn’t remove the pacifier herself—only an ‘adult’ could do that. Her only option was to find Mommy or maybe a sympathetic professor who might take pity on her. She headed toward House Ruby, hoping an upperclassman there might help if Mommy wasn’t around.
Stepping into the common room, a wave of relief washed over her as she spotted Mommy lounging on a plush couch, deep in conversation with other caregivers. The sight of her brought a mix of comfort and dread. Mommy’s eyes lit up the moment she noticed Elara, and she motioned her over with a playful wave.
“Well, well, I see my baby is doing well,” she mused, her tone teasing as she took in the pacifier still sealed to Elara’s lips. “Did Quinn convince you to put your pacifier in? I didn’t honestly expect you two to figure that part out so quickly.”
Elara shook her head, unable to speak. The blush on her cheeks deepened under Mommy’s amused gaze.
“No?” Mommy chuckled, leaning forward with a knowing glint in her eye. “You got in trouble, didn’t you?”
Elara’s eyes dropped to the floor, her face burning with shame as she stood there silently, the pacifier muffling any chance of response.
Mommy clicked her tongue, shaking her head in mock disapproval. “Honestly, I finally gave you what you’ve begged for, and this is how you repay me?”
Elara’s eyes widened in panic, and she shook her head vigorously, trying to convey that it wasn’t like that at all.
But Mommy just grinned wider, clearly enjoying herself. “Quinn had to go, didn’t she? And you couldn’t keep yourself quiet.”
Elara nodded eagerly, relieved that Mommy seemed to understand at least part of what had happened.
Mommy’s smile turned mischievous, her voice dropping to a conspiratorial tone. “Was she being naughty and holding it?”
Elara nodded again, shifting on her feet as the memory of those intense moments flooded back, along with the lingering heat they’d stirred in her.
Mommy giggled softly, reclining back against the couch. “Well, I suppose that’s understandable… poor thing must’ve been squirming for ages.” She patted the spot next to her, beckoning Elara closer. “Come here, baby. Let me get that pacifier out for you so we can talk properly.”
As Elara shuffled over, sitting down beside her, Mommy reached out with gentle fingers, murmuring a soft incantation under her breath. The seal on the pacifier released with a faint pop, and she eased it from Elara’s mouth, setting it aside. Immediately, Elara felt the shift in Quinn; she could tell the girl felt… Disappointed that Elara wasn’t nursing her pacifier anymore. The excitement Quinn had been feeling faded.
“There we go,” she cooed, brushing a stray lock of hair from Elara’s face. “Now tell me everything. How’d it feel when she finally let go? Don’t hold back—I want every little detail.”
Elara hesitated, her throat dry as she struggled to find words amidst the swirl of embarrassment and lingering arousal. “It… it was overwhelming,” she admitted quietly, barely meeting Mommy’s gaze.”It hit me so hard I… I couldn’t control myself.”
Mommy’s eyes gleamed with interest, leaning in closer. “Couldn’t control yourself how? Tell me exactly what happened to you when she gave in.”
Elara swallowed hard, feeling exposed under that intense stare. “I… I came,” she whispered, almost too quiet to hear. “Three times.”
A slow smirk spread across Mommy’s face as she rested a hand lightly on Elara’s knee. “Three times? My good girl… sounds like you enjoyed Quinn’s little accident more than you expected.” Her thumb rubbed small circles against Elara’s skin through the fabric of her uniform. “Did you want to be there with her? Touching her after? Seeing what a mess she made?”
Elara’s breath hitched at the question, torn between shame and honesty as those intrusive thoughts—the ones she wasn’t sure were even hers—crept back in. “I… yeah,” she admitted reluctantly. “I kept thinking about it afterward. Wanting to see it, feel it… tell her how good she did.”
Mommy hummed approvingly, squeezing Elara’s knee gently. “That’s my sweet baby. No need to fight those feelings—they’re part of you now, thanks to that rune.” She tilted her head, studying Elara closely. “But tell me—are you still aching now? Thinking about it again?”
The directness of the question made Elara squirm where she sat, heat creeping back into places she wished would stay dormant. She bit her lip before nodding slightly. “A little,” she mumbled.
“Then let’s take care of that soon,” Mummy purred, voice low and suggestive. “Maybe later we’ll have you two together again—see what happens when you’re both right there, feeling every moment up close. Would you like that?”
Elara’s heart pounded at the thought despite herself—she couldn’t tell if it was dread or anticipation tightening in her chest.
Elara shifted uncomfortably, her cheeks burning as she felt the weight of Mommy’s gaze. The room was quiet, save for the soft rustle of fabric.
Mommy’s thumb lingered on her cheek, the touch both tender and commanding, sending a shiver down Elara’s spine.
“You’re blushing so hard, sweetheart,” Mommy said, her voice low and teasing. “Is it because you know what’s coming? Or because you’re already imagining it?”
Elara swallowed, her lip still caught between her teeth. “I… I don’t know,” she mumbled, barely audible, her eyes darting away for a moment before being drawn back to Mommy’s intense stare.
“Oh, I think you do,” Mommy replied, her grin widening as she leaned in closer, her breath warm against Elara’s ear. “You’ve got that little spark in your eyes. You’re curious, aren’t you? About how it’ll feel to let go completely. To be taken care of like a helpless little baby.”
Elara’s breath hitched, her hands fidgeting in her lap. The runes etched into the delicate collar around her neck seemed to pulse faintly. She could feel the rune’s influence nudging at the edges of her mind, softening her resistance.
“Tell me,” Mommy pressed, her hand sliding down to rest on Elara’s thigh, fingers tracing slow circles through the thin fabric of her skirt. “What do you think it means to be a good girl for me? To take care of those needs like we talked about?”
Elara hesitated, her voice trembling as she spoke. “It… it means doing what you say. Letting go. Not fighting it.”
“That’s right,” Mommy purred, her grip tightening just enough to make Elara squirm. “It means trusting me to decide what you need. Mommy will make you into the perfect little baby.”