Once again, Sister Grace was bent over the office table, hands flat on the scarred, wax-polished wood, elbows locked and trembling as if they alone held up the shivering mass of her body. The rest of her was a single shriek of sensation: her spine a taut wire, her hips bruised and brackish where the chastity belt had clung for the last month, her thighs splayed so far apart that the muscles ached and spasmed with every tiny motion. Above her, the pale crucifix loomed from the far wall, watching the whole performance with blank, aquiline indifference.

 

Mother Margaret stood behind her, not speaking yet, just methodically sorting through the keys on her ring with the patience of a gravedigger. Each clink of metal was sharp as a dropped needle, echoing off the high, arched ceilings and mingling with the thick, suffocating musk of incense. The chamber, always kept cool as a reliquary, stank of old paper, candle wax, and the faintest undercurrent of sex. The only warmth in the room radiated from Grace herself, sweat beading along her spine and under her knees, her breath coming in small, wet hitches.

 

The Reverend Mother worked with precision, fingers steady and clean, not one strand of hair out of place in the severe black helmet of her veil. She knelt, leveled the latch, and inserted the tiny key into the clasp at the apex of Grace’s sex. There was a series of clicks, a resistant twitch of the mechanism, and then a slow, relenting release. The chastity belt parted with a final, metallic sigh, springing away from the soft, raw flesh it had buried for a month.

 

The relief was exquisite, but it was also only a new type of agony. Grace whimpered, her breath fogging the desktop, as the sudden exposure sent a shock of cold air through her, lighting up every raw and tender nerve. Her cunt gaped open, glossy and red, lips swollen almost shut and then, as the coolness hit, winking wetly in a desperate, instinctive effort to draw the world back inside. The marks of the belt were visible as deep, livid bands in the pale flesh of her hips and thighs; above, a string of clear drool hung from her slit, collecting in a trembling bead at the tip of her engorged clit before finally falling to the floor with a soft, obscene tap.

 

Margaret removed the belt, lifting it away as reverently as a sacrament, then set it on the table beside Grace’s face. She made no comment on the filth and wetness clinging to the plate, but the disdain in her mouth and the thin crinkle of her nostrils said enough. She circled behind Grace, letting her fingers trail lightly over the backs of Grace’s thighs, then up to the shelf of her ass. The skin there was cool and stippled with goosebumps, the pressure marks from the rear strap still raw and faintly purpled. With both hands, she spread the cheeks apart, exposing the dark, vulnerable puckered rose at the center.

 

Finally, Margaret spoke, her voice stripped to its scaffolding: “Have you been faithful to your discipline, Sister? Or have you tried to cheat your suffering?”

 

Grace swallowed, her mouth too dry to form words. She could feel the wetness pulsing from her cunt, leaking freely now that the plate was gone, and she could feel the sharp, cold focus of the Mother Superior’s eyes drilling into the split between her cheeks. She forced herself to speak.

 

“I have tried, Reverend Mother,” she whispered, her voice raw and papery. “I have tried to be good.”

 

Margaret made a sound that was neither approval nor rebuke. “But have you succeeded?” She leaned in, her lips close enough to the rim of Grace’s ear that the next words arrived as a chill. “You have not.”

 

A hand clamped down on the base of Sister Grace’s spine, pinning her more firmly to the table. With the other, Margaret stroked a single finger down the crack of Grace’s ass, slow and clinical, until it paused at the center and pressed, hard, against the tensed muscle. Grace’s cheeks burned, a flush spreading in a sickly tide from her nape to her ankles. The table was cold under her breasts, and she felt the panic rise like bile in her throat.

 

Margaret’s finger resumed its circuit, this time pressing into the rim of the hole, exploring the tension there. “You know,” Margaret said conversationally, “that when the lower hole is this relaxed, it is a sign of habitual self-abuse. The muscles fatigue. They become eager to accept intrusion.” The finger did not penetrate, but circled, stretching the ring just enough to set off a new cascade of shivers.

 

“Have you been using your back passage for relief, Sister Grace? Speak plainly.”

 

Grace choked, eyes stinging. She shook her head, silent. Mother Margaret’s grip on her spine tightened, and Grace managed a broken, “No, Mother. I haven’t.”

 

The finger pressed harder, flattening the tissue into a shallow, glistening crater. “This is not a question for modesty or pride. I know you have tried,” Margaret said, almost gently. “The body always tells the truth. But you must confess the details yourself, or your penance will be doubled.”

 

Grace pressed her forehead to the wood, counting the grain to keep herself from screaming. “I did try…” she whispered. “I thought— I thought if I did, maybe the other need would go away. But I couldn’t— I couldn’t—” She trailed off, guilty beyond words.

 

Margaret did not remove her finger. “You could not what?”

 

Grace trembled, every muscle in her body trying to contract at once, to disappear, to crawl out of her own skin and scuttle away beneath the office door. She managed, “I couldn’t finish.”

 

There was a long silence, in which the only sound was the slow, careful exploration of Margaret’s finger, and the pathetic, sticky noise as it rimmed the hole.

 

At last, Margaret spoke. “So you tried to escape your discipline by debasing yourself even further. Not merely a sapphist, but a sodomite. The Devil works fast on weak flesh.” She withdrew her finger, then, with a sudden violence, delivered a sharp slap to Grace’s ass, the sound ringing off the marble and stone like a shot. The pain was immediate and exquisite, radiating out from the center in a burst of heat that made Grace cry out loud.

 

Margaret stepped back, watching with cold satisfaction as Grace’s ass clenched and the wetness between her legs redoubled, a spasm of arousal involuntarily triggered by the blow. “Look at you,” she spat, voice low and sharp. “You’re already leaking like a whore in heat. Is this what you want? To be spread and used, over and over, by whatever hand finds you?” She punctuated the last words with another slap, then another, until Grace’s ass glowed a mottled red and her tears flowed freely, spattering onto the desktop below.

 

Grace could only gasp and shudder, her entire body reduced to a single, quivering nerve. She was more exposed than she had ever been in her life: every secret bared, every transgression measured and displayed. The shame did not even feel like her own anymore. It belonged to Mother Margaret now, to be dispensed or withheld as she saw fit.

 

The nun watched the miserable girl for a long moment, then finally, with a long, slow exhale, leaned in to whisper, “You are more filthy than I thought possible. I will have to purify you.”

 

She wiped her hand on the hem of her habit, then walked around to the other side of the desk, leaving Grace bent and sobbing, leaking from both ends, unable to stand without direct permission. Her gaze lingered behind the ruined girl, eyeing the shivering arc of Grace’s body as if considering a slab of meat: the sheen of sweat in the small of her back, the way her ass flamed red where the blows had landed, the faint clenching and unclenching of the muscles around the freshly exposed hole. Delicious.

 

She stepped to a shelf built into the stone wall. It was almost an altar, lined with relics and votives and the tools of her trade. Among the pewter crosses and battered censers, she located a squat glass vial and anointed herself with a cross on the brow before returning to the desk. The oil inside was clear and viscous, faintly perfumed with something like myrrh. She poured a small puddle into a shallow bowl and, with the care of a priest preparing the Host, swirled her fingers in it, letting them soak up the chill.

 

Grace remained where she was, hands glued to the desk, face sticky with tears. The anticipation was worse than the pain: she knew, as surely as she knew her own name, what was coming. She squeezed her eyes shut and tried to slow her breathing, but every inhale just made her chest tighter with humiliation.

 

Margaret set the bowl on the table, just within Grace’s line of sight. She spoke as she did, voice rich with unearned solemnity. “Impurity is not cleansed by mortification alone,” she intoned. “The channel of sin must be sanctified by holy ointment.”

 

With that, she dipped three fingers into the oil, letting them shine in the candlelight, and brought them to the base of Grace’s ass. She began by massaging the oil into the skin, slow and circular, working it into the angry marks and the tight, trembling muscle around the hole. The coldness of the oil was a shock, followed by a flare of heat as the friction took hold. Margaret used both hands now, one spreading the cheeks apart, the other working the oil deeper and deeper, until the entire area glistened.

 

Grace whimpered, the sound catching in her throat. She felt the first finger slip into her, slow and steady, and she gasped at the intensity of it, the feeling of being invaded and spread and made helpless. The oil made everything slick, and the finger slid in to the second knuckle without resistance. Margaret twisted it there, stretching the muscle, then withdrawing almost entirely, before plunging back, deeper and more insistent. Grace’s knees buckled, and she let out a high, hopeless sound, the kind that animals make when they know the trap is sprung.

 

 

After a while, she worked a second finger in. “This is the cost of impurity,” Margaret whispered, almost lovingly. “The body must be emptied before the soul can be filled.”

 

Grace’s knees buckled, her chest pressing flat to the desk as her body surrendered to the pressure. She could feel her asshole stretching around the fingers, feel the slickness leaking down her thighs, could hear the wet, squelching noise as Margaret pumped in and out, in and out, slow and relentless as a metronome. The shame was a living thing; it clawed up through her, merged with the pain, and spilled out in wracking sobs that echoed off the stone. “Please,” she begged, voice barely above a whisper, “please, it hurts—”

 

But Margaret’s hand did not stop. She pressed her palm down hard on Grace’s back, pinning her to the table, and sank the oily fingers in up to the third knuckle. The stretch was brutal, but Grace’s body opened for her, the rim fluttering and yielding with every pulse of humiliation and panic. Margaret watched with delight as the girl’s cunt, completely neglected, spasmed and drooled a steady, syrupy leak onto the table, pooling in a halo beneath her thighs.

 

“You see?” Margaret said, voice low and mocking. “You pretend to hate it, but your body can’t lie to me. This is what you crave, isn’t it? To be made helpless. To have every part of you exposed, filled, and ruined.” Her hand moved with slow, grinding force, twisting the two fingers inside Grace’s ass and then spreading them apart, stretching her wide open until Grace knew with utter certainty, that there would be no mercy, that there would be no end except the one Margaret chose.

 

Without warning, the Reverend Mother added a third finger. The stretch was catastrophic; Grace’s entire lower body went rigid, her back arching in a hard, involuntary bow as the ring of muscle yielded to the new shape. She was barely able to stay upright, the gloss of tears flooding her vision. The pain was immense, but what horrified Grace more was the white-hot bolt of pleasure that chased it, coiling up through her pelvis and into her lungs until she was panting, breathless, unable to decide if she was dying or being born.

 

Her hands, flat on the table, clawed at the lacquered wood until her nails scraped splinters. Her vision tunneled. Through the roar in her ears she heard Margaret’s voice, soft again, achingly triumphant: “I can feel your cunt pulsing, Grace. You’re dripping all over the floor. Do you want to cum, right now, with your ass wide open and your body a ruin?”

 

Grace couldn’t answer. Her words drowned in quick gasps coming from her throat. Not that she needed to speak; it was a rhetorical question.

 

“You’re lucky to be under my care,” The Reverend Mother’s voice was stern. “Any other superior would have had you defrocked and cast out. But I am merciful. I will fix you, if it takes every drop of your wickedness to do so.”

 

Grace tried to respond, but her voice was broken by sobs. “Please, Mother, I’ll be better, I promise, just—”

 

“Just what, Sister?” Margaret said, twisting her fingers and holding them there, the knuckles white with pressure. “Just stop? Just leave you as you are? Unhealed, impure?”

 

“No—” Grace gasped, the word dissolving into a moan as the pain crested again.

 

“I didn’t think so,” Mother Margaret said, and resumed with fresh vigor.

 

With her performance finished, the nun’s mask of outrage had been replaced with something more primal, her voice thick with hunger, her movements no longer clinical but openly, sadistically sexual. She watched Grace’s suffering with the detachment of a connoisseur, delighting in every twitch, every helpless contraction, every mortifying noise that escaped the girl’s mouth. When it was finally done, Margaret withdrew her fingers, leaving Grace’s ass open and raw, leaking oil and mucus and whatever other shameful fluids the ordeal had extracted from her. She took a linen cloth and wiped her hand clean, then placed it gently on the back of Grace’s neck, holding her down as she caught her breath.

 

“You are cleansed, for now,” Margaret said. “But you must never forget what you are, Sister. If you relapse, if you let impurity enter you again, the treatment will only intensify.”

 

Grace nodded, face mashed against the desk, hair stuck in ropes to her cheeks with tears and sweat.

 

“Thank you, Mother,” she managed, voice hoarse and small.

 

The old nun released her and stood back, eyes sweeping over the devastation she’d wrought. Grace did not move; she remained folded, a ruined thing, body still twitching with aftershocks.

 

Mother Margaret bent to retrieve the oiled chastity belt, now streaked with the sediment of Grace’s ordeal and faintly steaming in the cool air. She did not bother to clean it. Instead, she fit it between Grace’s trembling thighs, the inside cold and slick, pressing the damp metal to her ruined slit with a deliberate, unhurried force. The plate cupped the mess of Grace’s cunt, mashing the raw, leaking flesh against her pubic bone, while in the rear, the metal ring nestled itself around her twitching, oozing rim.

 

In this state, Grace was not even an animal; just a mess of need and nerve, hollowed out and constructed to be filled. The Reverend Mother turned the key in the lock, listening for the tiny catch and the whimper it provoked from the girl before her.

 

“I regret that it had to be so severe, Sister,” Margaret said after a long silence. “But sometimes the body must be humbled for the soul to listen.” She set a hand on Grace’s head, gentle this time, smoothing the sweat-damp strands of hair, and for a moment the kindness hurt more than the cruelty.

 

The nun eased herself into her desk chair and allowed Grace to crumple, at last, to the floor. There the girl knelt, legs folded under her, arms hugging her ribs, ass still weeping a slow, viscous trail onto the stone. The rawness left her pliant, her mind dull and blank as a fogged window, all hope of resistance sluiced away by the ordeal.

 

 

---

 

 

Margaret studied her for a while, then sighed, a long exhalation that seemed to empty the room of air. “I have been reflecting on your case, Sister,” she said, as if addressing a court. “It is clear to me now that your vice is not a simple matter of lust or weak will. It is something deeper, an appetite given to you by God Himself. Not as a burden, but a calling.”

 

Grace blinked, slow and watery, her eyes fixed on the gray blur of Margaret’s skirt. She tried to find something in the words to hold onto, but there was nothing. She was as hollow as a reliquary, all her self scraped clean.

 

“You have failed at every discipline I set you,” Margaret continued, her tone almost sad. “The belt cannot contain your lust. Mortification only inflamed you.” A brief smirk flickered across her face. “Even the strongest penance serves only to make you more desperate, more hungry. Do you understand, little one? You are not cured by suffering. Suffering is what makes you bloom.”

 

Grace sobbed at that, the sound as involuntary as a sneeze. It was true, and she hated how true it was. Even now, the pain between her legs and the burn in her asshole felt right, somehow.

 

The Reverend Mother leaned forward, lacing her fingers on the desk. “This is not a flaw, child. It is your vocation. Some are born to prayer. Some to teaching. Some… are born to take on the temptations of others, so that they may be spared. In you, the Lord has placed all the impurity of our little flock, that you might suffer in their place.” She paused, letting the line sink its barbs.

 

“You mean,” Grace whispered, “I’m supposed to be this way?”

 

“In a sense,” Margaret said. “Not to indulge, not to wallow, but to serve as a vessel for the sins of others. To draw the poison from the body of the convent and carry it in yourself, for the good of all. It is the oldest pattern in Christendom: one suffers, that the many may be redeemed.”

 

It was a logic so exquisite in its cruelty that Grace could only stare, tears brimming, as the pieces clicked into place.

 

“But—” she tried, “—I don’t know how.”

 

The Reverend Mother had been waiting for this exact moment. “That is where I will guide you. Your desire is not for your own satisfaction; it is for the use of others. You will take their lust, their sin, their secret hunger, and you will bear it so that they may remain pure. This is the work the Lord has appointed to you.”

 

Grace’s mind reeled, teetering between horror and the desperate hope that, if she could only accept this, she might finally find peace. Her entire life had been a cycle of hunger and punishment, craving and abnegation. This… this was at least an answer.

 

She looked up, raw and red-eyed. “If I do this,” she asked, “will it make me… good? Will it make the pain go away?”

 

Margaret’s eyes glinted, piercing her soul. “You will never be good, Sister Grace. Not in the way you wish. But you will be necessary. You will be holy, in your own fashion. You will have a purpose, and it will be to keep the others from falling as you have fallen.” She opened her hands, palms up, as if making an offering. “Is that not what you always wanted? To be useful?”

 

Grace nodded, the hope a dull, thick pulse behind her ribs.

 

Margaret rose and came around the desk, kneeling beside the shattered girl. She took Grace’s hand in her own, the touch cold and strong.

 

“It will be difficult,” Margaret said. “There will be days when you think you cannot bear it. But you will. And you will come to crave your suffering as a badge of honor, the way martyrs crave their wounds. You will learn to love it, Grace, and in doing so, you will save yourself.”

 

Grace’s fingers twitched in Margaret’s grip, then closed, desperate, around the older woman’s hand.

 

“Do you understand?” Margaret asked, her breath hot and close on Grace’s ear.

 

“Yes, Mother,” Grace whispered. “I want to be useful. I want to be holy.”

 

Margaret stroked her hair, almost kindly. “Then you will be, my dear. I will see to it.”

 

She stood, letting Grace’s hand drop to her lap, and straightened her habit. “There will be training, of course,” she said briskly. “You must still learn to control your urges, to direct them for a higher purpose. But first, you must accept your nature fully. No more shame. You are what you are, and that is your strength.”

 

Grace’s chest filled, at last, with something other than pain: a desperate, clawing gratitude. She had never felt so seen, so necessary. She knelt, limp with relief, eyes fixed on the floor. “Thank you, Mother,” she breathed, meaning every syllable.

 

Margaret smiled, her work done for now. She would let Grace rest, gather her courage, and return tomorrow for the next step. There would be time enough for deeper instruction. For now, she had what she wanted: a soul bent utterly to her will, a vessel emptied of all resistance, a perfect lamb, ready for slaughter.

 

As she left the chamber, the door closed with a soft, final click. Grace remained on her knees, feeling the ghosts swirl around her, their voices whispering what she already knew.

 

This was her true vocation.

 

 

---

 

 

The next evening, Grace waited in the chapel until the bells tolled the hour, then made her way in silence to Mother Margaret’s office. Her belly fluttered with a chaos that felt almost like hope. She wore nothing under her habit; the chastity belt was gone, replaced by a new certainty that discipline would come from within. She had not slept, not really, but the world felt sharper, full of an exciting energy.

 

Mother Superior was waiting. The office was lit only by two trembling candles, which cast the woman’s face in monstrous, flickering relief. She sat behind her desk, hands steepled, eyes fixed on Grace’s approach. Her habit was immaculate, but the top buttons of her tunic were undone, enough to reveal an expanse of pale cleavage, the shadowed valley between her breasts drawing the eye like a threat. The hem of her skirt was shortened, Grace realized, from its usual monastic length. It rode high on the nun’s thighs, exposing the tight white stockings she wore beneath. The nylon shimmered in the candlelight, clinging to the woman’s calves and thighs in a sheath of darkness. Every line of her posture exuded authority, but also a carefully curated promise of something else: power, yes, but pleasure as well, should you be strong enough to take it.

 

The older nun did not speak at first. She let Grace hover, abject and hungry, in the charged dark, her own body radiant with hidden want. When she finally gestured Grace forward, it was with the slow, inexorable curl of a single finger, as if drawing not a girl but a string of fate.

 

“On your knees,” Margaret said, but her voice was soft, almost lulling.

 

Grace obeyed, the stone biting into her knees as she shuffled forward, head bowed. Her eyes never rose above Margaret’s shoes, which gleamed black and predatory in the candlelight.

 

“Do you understand your purpose now, Sister?” Margaret asked. She let the words linger, heavy as a sacrament.

 

Grace nodded, lips parted. “Yes, Mother. I do.”

 

Margaret smiled, a flash of perfect, carnivorous teeth. She slid her chair back from the desk, then planted both heels wide apart, so her skirt parted down the center. She hiked the heavy wool up her thighs, exposing the pale, almost luminous skin above her stockings. At the top, her pubic mound was clean-shaven, the lips below already slick and glistening. Grace could smell her even from here: the musk of sweat and sex, heady and intoxicating, layered beneath the spicy bite of incense.

 

“Come here,” Margaret said. “Show me what you’ve learned.”

 

Grace inched forward, crawling on all fours, her hair trailing in a red river behind her. When she reached Margaret’s lap, she hesitated, looking up for permission. Margaret obliged with a hand to the back of her head, guiding her down.

 

The first touch of tongue to flesh was like swallowing fire. The taste was thick and oily, both sharp and sweet, electric with the residue of arousal and the tang of her own shame. Grace buried her face in the pink wet gash, her tongue lapping in long, trembling strokes, desperate to please, to be useful. She dug her nails into the insides of Margaret’s thighs for leverage, her whole body trembling with the effort to give more, always more.

 

Margaret’s hand was a vice on her skull, fingers braided tight in Grace’s hair, jerking her head side to side with little warning. She set a rhythm, slow at first, then cruelly fast, then suddenly stopping altogether to let Grace whimper and choke and gasp for breath.

 

“Good girl,” Margaret said, her voice distant and dreamy. “You see? We finally found it. This is what you were born for. To serve, to empty yourself, to drink the cup of humiliation to the dregs.” She twisted a fistful of Grace’s hair, yanked her back, and spat on the girl’s cheek. “Slut,” she said, the word almost affectionate.

 

Grace shuddered, her mouth a ruin of drool and cunt, her cheeks slick with spit and tears. She wanted to live in this moment forever, wanted to be used and used until nothing remained but raw, scraped nerve.

 

Margaret reached for her rosary, winding it around her left hand as she shoved Grace’s face back between her legs with the right. The beads clacked softly as she fingered them, reciting prayers in a mocking undertone. “Ave Maria, gratia plena…” With every phrase, she flexed her thighs, grinding Grace’s mouth deeper into the wet cleft, smearing the girl’s lips and nose with the hot, slippery mess.

 

Sometimes, when Grace managed to look up, she saw Margaret staring down at her, the face unreadable, a gleam of mad pride in her eyes. “Don’t stop,” the nun would whisper, stroking Grace’s jaw with the knuckles of her free hand, “don’t ever stop, little dyke. This is your heaven, isn’t it?”

 

Grace would nod, tongue never ceasing its work, even as her jaw ached and her neck screamed from the strain.

 

When Margaret neared climax, she became almost gentle, stroking the side of Grace’s head with a mother’s touch, whispering sweet, poisonous things into her ear. “You’re saving us all, Grace. You’re saving me.” The tremble in her thighs would build, the pulse quicken, and just as the shudder peaked, she’d seize Grace’s face in both hands and hold her there, nose and mouth mashed to the spasming cunt, riding out the pleasure with a long, animal moan.

 

But she never let Grace rest. The moment the wave passed, she would grab the girl’s hair and force her to start over, as if the only relief was in prolonging the humiliation.

 

Time lost its meaning. Grace’s jaw went numb, her lips peeled raw, her tongue a trembling, obedient muscle, eager to worship her betters. When Margaret finally climaxed for the last time, she screamed with triumph, and then collapsed in her chair, letting Grace slide to the floor, limp as a used cloth.

 

For a long time, neither moved. Grace lay where she had fallen, arms splayed, face slick and shining, breathing in the scent of sweat and sex and sanctity. Margaret sat above, chest heaving, eyes closed in some secret prayer.

 

When at last the silence broke, it was Margaret who spoke, her voice soft, almost reverent.

 

“You did well, Sister Grace. You have taken your first step to holiness.”

 

Grace wept. Not from shame, not from pain, but from a joy so terrible it cracked her open.

 

She belonged, now. She was useful. She was, in her own ruined way, loved.

 

And in the dark, echoing vastness of the office, with its candles guttering and its saints looking down, Grace whispered a prayer of thanks, tasting salvation on her battered tongue.