Warhammer 40K, Only Lust: Sisters of Battle (Patreon)

This story ended up running a little long because it was… well, a fun story to explore. It’s got the good ol’ lesbian sex in there, but it’s also a semi-romantic love story. Sisters of Battle are summarily nicknamed as “nuns with guns.” They love The Emperor to an extreme and love to help his followers while taking a flamethrower or a machete to his heretics and traitors. Self-punishment and forgiveness is a huge factor among them, so they’re preeeeetty zealous/crazy as a default.

I wanted a story that wasn’t just them being kinky as a standard practice, which became a forbidden love angle. Then it added hero worship and a fall from grace and the differing views on everything about The Emperor of Mankind (spoiler; just about everyone is wrong and he is probably pretty pissed).

I loved writing her childhood crush becoming real. I love writing strange cultures, particularly those with harsh rules on gender (as my unreleased novel would give away… we’ll have to see how that one goes, though, if I force myself to follow through with it). It’s a fun and intense read, if I say so myself; more about the feelings than the all out “get that war-nun a strapon!” stuff, which I tend to like the most in the end. 

I had always admired Sister Cassandra. Ever since I was a girl, and especially once I had become a recruit to the Sisters of Battle alongside her. Some called the Sisters the angels of The Emperor and if Cassandra was their only example, I would believe them. Everything about her spoke angelic to me. From her carefully kept red hair to her lovely face, down to the fact that she brought holy fire and crushing fists down upon her enemies. It was how I’d first met her; when my colony was attacked by warp-tainted mutants, the Adeptas Sororitas were deployed. I had personally watched as Battle Sister Cassandra came soaring in, power armor covering everything up to her neck. She stomped an approaching demonic-looking mutant’s skull beneath her power-armored boot, clad in pitch black armor while the red of heretic blood, a handheld flamethrower and her crimson hair flickered across its surface.

She saved my life that day and I immediately developed a crush. It blossomed into true love over time, but in my youthful excitement I joined the local Sororitas. They tended to hand-choose the purest (or most easily manipulated) young ladies, so I was met with some frowning and hesitation by her comrades. Through a lot of convincing and hard work (training and study helped, but it was sitting in front of their temple without eating for a few days that did the trick), I was in training to become a proper Sister of Battle. The Daughters of The Emperor. Some of the purest and most zealous of The Emperor’s countless soldiers. I spent the next ten years of my life studying and training. I learned a lot about the details and history of the Sororitas, with it proving almost as important as how to shoot a heavy bolter and every major prayer to The Emperor.

Humanity was once split and half-forgotten across the galaxy before The Emperor slowly reclaimed its populace. When a corrupt leader in the Imperium found the original sisters, they were primitive and easily tricked by his technological wonders. Their intense faith was redirected to follow his lead, thinking him the chosen of The Emperor even when rebellion came to overthrow the power-mad tyrant. It was not until the head of the Sororitas visited The God-Emperor of humanity Himself and from miracles unknown, instantly turned around and killed their false idol. The Cult of Mankind was deemed to no longer be fit to keep “men under arms,” so we Sisters remained as a technicality. Our foremothers had proven that even in the face of Space Marines, The Sisters had the faith and absolute willingness in the true Emperor to throw their lives away for the sake of worshiping him and redeeming our errors. That motivation and resolution made us twice as deadly as any common soldier and the bane of corruption. We’ve reached a point of uplifted autonomy; nearly autonomous; not quite the army, not quite church, but trusted to fulfill The Emperor’s will as well as any priest or Space Marine.

In other words, we “nuns with guns” (one of the local civilian nicknames for my division of The Ebon Chalice) was extremely old school in their faith. Penance often meant physical labor, chanting or pain in some combination of the three. The training was harsh and stern, more than any school or most military branches. I had to recite prayers that I couldn’t hear over my heavy arms fire and had disobedience (by failure or unwillingness) whipped out of me. Despite it all, whenever I would pass Sister Cassandra in the halls or see her marching off to another victory, I felt completely refreshed. She even recognized me from the day she’d saved me. She smiled a lot. Almost constantly, really. I’d seen her smile as she swept her flamer across a gang of those twisted mutants, simply glad to be doing His work. But when she smiled at the sight of me, I still felt special. It was like she was helping me out of the ruins of my old house all over again.

After years of practicing charity, patience, vigilance and heavy weapons training, I found myself declared a proper acolyte at age 20. You know how it is; barely old enough to drink but old enough to die for The Emperor. Cassandra was there to oversee it all, beaming with pride as I was assigned to serve as her apprentice. I remember it as one of the happiest days of my life, even if I had a lot more calluses and scars than before I’d met her. She was a more motherly-looking woman, but no less beautiful. Her hair was still its blood red, as if dyed by the countless martyrs before her. 

That night I went through my duties as her acolyte. Back in the changing rooms, I demurely helped Cassandra out of her power armor. The huge and partly automated plate mail hummed and opened its various hatches as it turned off its muscle enhancing gadgets. She was wearing a simple tabard and shorts beneath them. The basic underclothes of nearly every sister in training I’d changed clothes with. It was as bare as I’d ever seen Cassandra herself and it was instantly, deeply telling. She was a beaming, gentle woman, and that always showed. We just looked good doing it. While the Sisters did more than just combat, aiding with healing and prayer, we were all ready soldiers in the end.

Beneath the armor she had so many scars. Some were burns or slashes earned in battle while others looked more deliberate, left in ceremonial shapes I recognized from the architecture or my well-studied scrolls. Cassandra was hard muscle beneath that beautiful face and fair skin, making her as lovely as she was deadly. In truth, she was probably more deadly than lovely, but it would be hard convincing me of that. Even out of her ceremonial robes or battle garb, she was an intimidating woman whose very presence reached right into my heart and made it race for all manner or reasons unbecoming of a Sister.

“You did wonderful today, sister Aurora,” Cassandra praised. She caught me in a warm hug that was so warm and welcoming I almost forgot that she could probably just snap my spine like this. I was all too happy to hug her back with my much more lightly muscled body.

“I just recited the rituals,” I admitted, beaming all the same. “I don’t deserve much credit for memorization.”

“Humility and remembrance are strong foundations of any worthy member of the Sororitas.” she reminded me as we walked back towards the sleeping quarters. While many temples to The Emperor were radiant with gold and silvers, the duality of the Sororitas remained apparent. Our simple and vigilant lives left our temples to be made of durasteel and stone, a sanctuary for the soul and body. As a result, I’d spent much of my life in a large, shared bunkhouse with a couple dozen girls in various states of zealotry, punishment (whether assigned or self-appointed), and oaths.

Sister Cassandra had private quarters as a sign of her status (presumably helping in her meditation and opening her heart and mind to The Emperor’s will), but even that was fairly cramped. It had just enough room for her bed, a rack of her traditional weapons (a flamer and a chainsword being standard fare), a very small dresser and a few ornaments of the sisterhood or The Emperor’s glory. Everything smells of roses and oils with a faint hint of smoke.

“You will be expected to serve under me and remain at my side, whether in worship to His glory or in battle. Have faith in your strength, Aurora,” she explained proudly. “I see great promise in you.”

“Then I assume you haven’t heard of my incident with the heavy bolter,” I laughed awkwardly. I wanted to kick myself after saying something so stupid in front of her, but that might have been the whole repentance and suffering outlook talking.

“We all make mistakes, child,” Cassandra assured me. She turned in the small room to set her hand on my cheek. I instantly remembered a wet dream I had that was just like this. “It is what we do with these weaknesses that draw us closer to His grace. Even The Emperor Himself can be wounded.”

“Yes, Sister Cassandra. Thank you, Sister Cassandra.” I nodded rapidly and tried not to bite my lip as she giggled at me.

I was staring in the face of the woman I’d idolized before my parents even thought to give me the talk about boys. So much waiting and longing and admiring as I threw my life away just to be closer to her. Now I was as close as I could be, lucking out and getting assigned to her. Either one of the highest-ranking sisters noticed my attention or The Emperor really was looking out for me. A personal thumbs up from The Golden Throne was probably a bit much to hope for my childhood crush when there were daemons and constant warfare going on in the universe. All that luck and I couldn’t even bring myself to kiss her.

Fortunately, she kissed me. Her deep red lips parted slightly, standing out against her pale skin as she pressed them to me. They were soft as angel feathers as I went beet red, as if the shade of her hair and lips flooded into my lightly tanned face. Her strong hands went around my slender hips and my instincts wouldn’t let me resist. I pressed myself firmly into her, my softer hips and chest pressing against her powerful frame. I have no idea how long I was like that in her arms, just behind held and kissed so brazenly that all I could bring myself to do was moan into her mouth.

She must have let me go eventually and I started breathing again. She smiled knowingly at me, licking the taste of my lips from hers. “Th-thank you,” I managed. “How… um, did you…?”

Cassandra laughed so hard that her muscles visible quivered. “Child, I have been trained for my entire life to seek out heresy and impurity. Did you think I wouldn’t notice a recruit staring at me from across the room?” I blushed and shrank a little as she squeezed my ass with a strong but delicate hand. “I have had my eye on you for some time. I had faith that you would excel, and I made sure to put in my recommendation that you serve under my care.”

“I… trust in your guidance, Sister Cassandra,” I said meekly. It was my near decade of holy military training that kept me from avoiding her eyes as she looked at me with proud admiration.

“You can just use Cassandra. Or Cassie,” she corrected as her hand slid up my side. Her fingers brushed just under the bottom of my tabard and after all these years of celibacy among my comrades, that was enough to get my nerves exploding with delight.

“Yes, Cassandra. But aren’t these sorts of… indulgences frowned upon by the order?” I wasn’t naïve enough to think that the Sisters didn’t have urges or have sex. While we were called the Brides of The Emperor, there were members of the Sororitas who had spouses or even children of their own. But behind closed doors with your apprentice…

“We are expected to give ourselves for the sake of others,” Cassandra mused as she ran her fingers through my blonde locks. Anywhere I didn’t have goosebumps certainly did now. “To remain loyal and protect our sisters, reinforcing our faith and love of The Emperor. I’d consider it just another means of sharing his many blessings.”

That was enough for me. Not that I needed that much convincing. I leaned eagerly into her embrace and took some initiative, kissing her back while I removed my top. I must have impressed her, or at least pleased her, because her hands moved with a slow and steady efficiency as she stripped and felt my smooth young body. I was far from flawless, but neither was I as battle-hardened as my idolized mentor. I wrapped my arms around her, pressing my smaller and softer breasts against her bosom of welcoming muscle. She stepped back, clearly with purpose rather than my weight overpowering her. I had bulked up significantly over the years of practice, forged into one of The Emperor’s most reliable weapons, but Cassandra’s hands still slowly admired every curve. I had no idea how she had practiced such delicate intimacy but I didn’t care by that point.

I let the older woman sit in the bed, pulling me after her and mounting me against the sheets. My chest heaved as I stared up at her, eyes wide and my body eager for more. She smiled sweetly, her red lips spreading across her pale skin as if she was happily doing her righteous duties. Her lips parted at she brought her mouth to my breast, lightly pinching an eager nipple between her lips. That alone got me to shiver as her tongue and lips barely brushed against my wildly sensitive tip. She suckled softly, watching me with the same gentle amusement and pride as I squirmed beneath her. I had been waiting for her love for so long that I wondered if my body would burst just from this. I was thankful that my willpower was enough that I didn’t disappoint her so quickly.

Cassandra shifted her mouth from my left breast to my right, trailing a trickle of drool across my chest. I mewled and dug my heels into the bed sheets as even the subtle wind within the room teased one nipple while her mouth worked the other. Her gentle touches were occasionally interrupted with a short but sharp bite to my breast, making me bite my lip and arch my hips. It made my pussy press against hers, which in turn made my legs go weak and crumble back to the bed. I could barely even see straight from the simple pleasures of her teasing, but I could feel everything. Especially when her hand lowered and cupped my naked groin, lightly dipping two fingers into me.

My voice peaked in a throaty moan, arching my back to push my tits further into her hands. I pushed hand hips up to press her strong fingers deeper inside me, making my eyes roll back. Her solid body may have been all that kept me from shaking my way right off the bed. Her fingers flexed and pressed in deeper, kissing and licking along my upper body before her mouth silenced my pleading mewls. My gaping mouth made easy pickings for her tongue as she buried it between my lips. I spread my legs as far apart as I could (not as far as when I was young, given all the extra muscle I’d put on), allowing Cassandra to press a third finger into me. Her cradling, cupping gesture curled her fingers right up the length of my clit and I knew I wouldn’t last long at that point. My pussy was flooded with eager juices as I swallowed a mouthful of our shared saliva, making her fingers and tongue slip easily in and out of me. 

Cassandra finally shifted as she sensed my yielding submission. She boosted herself up on one elbow, her crimson hair tickling my sensitive skin. I breathed noisily through my mouth, blowing it around like a delicate curtain that hid our little affair. “I love you, Cassandra,” I said as plainly as I could in my arousal that had me more lightheaded and entranced than any incense-caked ritual. Her knowing and affectionate smile practically shut off my brain with impossible want for her.

“I know, my little Aura. Now brace yourself. Your first time is never easy.” She lowered herself again, this time with her heavy breasts pressing against my face. She shifted until her hard nipple fit past my tongue and upper lip, popping into place as I instinctively sucked and licked with all I had. I found myself drooling over myself, uncaring at how graceless and unsisterly it would appear. Behind closed doors and with my idol naked and mounting me, I didn’t care about anything else. Cassandra’s fingers worked a bit faster as I sucked ravenously on her breast, toes curling at the sound of her soft moans rumbling through her full and muscled chest. She brushed back some of the blonde hair as she kissed my earlobe, sending fresh new pleasures throughout my body.

“Your beauty shines like The Emperor’s light,” she whispered to me softly. “I am expected to love all of The Emperor’s children, but Acolyte Aurora… I feel my love for you the strongest of all.” 

Her quiet praises simply broke me. My eyes rolled back and I all but screamed into her chest, hips pumping as my tanned body slapped against her pale skin. She stayed over me like a fortress, immovable by any pathetic efforts of a horny sister in training. It was only when I crumbled to the bed in a sweaty heap, my sensitive breasts bouncing with each labored breath that she slid her chest away from my face.

“I didn’t mean to scream,” I said apologetically.

“Just like a Sister to apologize for feeling pleasure,” Cassandra laughed jovially. She slid to one side, but only so that she could lay beside me. She stayed pressed against me, blessing me with her warmth as her hand ran over my belly. “But I had suspected you would. I have been with enough of my fellow brides to expect it from a virgin.”

“Did I disappoint you?” I asked, curling up a bit tighter against her. She shook her head, teasing those long red hairs across my skin again.

“You performed admirably in your duties,” she praised, kissing me on the cheek. She tilted my chin to catch me again on the lips. “You bolster your keeper’s spirits and share in His love. I have seen you perform on the training grounds and firing range, as well as how you treat your companions. You are an admirable Sister in the making, my love. You will slay many and do me proud. Of that, I am certain.”

“Thank you, Sist… Cassandra,” I corrected. I was rewarded with another kiss, and thousands more as the months went by…

I could never tell if people suspected our relationship had a sexual side. Then again, I wasn’t sure how many of the Sororitas engaged in this kind of activity. There were rumors among the trainees, but talk of them was quickly snuffed out as distractions from our duties. They certainly didn’t attempt to stop, say, Dawn and Alexandria from always stationing themselves within arm’s reach of each other unless they were breaking formation. With that sort of tightly-knit camaraderie allowed, it didn’t seem like anyone would care even if they knew I was sleeping with my mentor. 

Life in the Sororitas was never meant to be easy, but at least we were happy. The trials of combat and training felt easier knowing that it was always by Cassandra’s side, always returning to her arms at night. Things changed around a year into my service as her acolyte. We had returned from the planet Argesius, an agricultural world that had been assaulted by the forces of Chaos. We had been called in to ensure they were properly purged, and Cassandra lead a squad of Sisters that rent and burned the dangerously prepared cultists.

We returned to the temple, but Cassandra was called to trial rather than praised. I had to wait tensely beside our meeting hall as our superiors accused her of failing The Emperor through lack of vigilance. We had dealt with the first wave of cultists, but in taking time to evacuate citizens and heal the wounded, several daemonic Warp entities had escaped to a nearby world. They insisted that had we pressed on and accepted the imminent losses, we would have brought The Emperor’s light to the heretical beasts and avoided the spread of their chaotic infection.

It felt awful, even if Cassandra remained as undaunted as ever. She held her beautiful and stoic smile as they broke down her tactical and religious failings, correcting or providing information but never arguing. A saint among saints, my Cassandra.

“It is the findings of your fellow and superior Sisters that you are sentenced with penance by Sister Repentia. You shall be stripped of your rank and record until seen fit by your assigned Mistress of Repentance.”

“I understand,” Cassandra conceded quietly. Even in her steady stance, I knew her closely enough to see the implied slump in her shoulders.

I swallowed hard. The Sororitas were always into pain and sacrifice as a means of redemption. For the more extreme punishments (outright Heresy was punished promptly with a bolt pistol or a flamer), this was taken to new extremes. You became an outcast, left at The Emperor’s mercy to see if you received his blessing long enough to be forgiven. Here it was happening to the woman who had saved my life, being punished severely for doing the same for these civilians.

When they started to address my reassignment, I spoke up. “I submit myself for the Sister Repentia!” I blurted. The lead Sisters at the table gave me looks of surprise. I expected a firm scolding or a warning from Cassandra, or at least a sharp glare. Instead she looked to me and broke into uproarious laughter.

All that forced reading of history and Sororitas codes had paid off in the end. There were two ways to end up in the Repentia units; punishment or volunteering. Sometimes Sisters were mad enough to sign themselves up for such deeds, deciding they could stand for some more purification. For all they say, Sister Repentia stand on a fine line. They’re practically criminals, blacklisted to be shunned and unaided by proper Sisters of Battle. On the other hand, they had a sort of romantic sound to them; shedding the pretense and high-powered weaponry of their order to hurl themselves into battle with little to protect them other than The Emperor’s love.

Even in our disgraced stripping of our weapons and more advanced equipment, there was sanctity and ceremony. We recited verses in a call and response with the gathered women of our temple, handing off our armor and arms before we were given what were to be our new garb. Instead of the spotless garments of a proper sister of battle, we wore little more than ancient rags. A loincloth and a top made of leather so flimsy I wouldn’t even consider it armor so much as a very uncomfortable half of a shirt. Pages of holy scripture, blessed words of The Emperor, hung from the flimsy clothing like cheap, withered medals.

Last of all, we were handed our only permitted weapon; what they called an Eviscerator. It was like the common chainsword, an engine-powered sidearm of a blade that tore through flesh. Unlike the standard chainsword, this was the size of a bastard sword instead of a saber. It was nearly as big as I was, and I had to focus my strength not to drop the damned/holy thing in front of everyone.

And so it was. Cassandra and I were finally escorted to our vessel to bring us to the frontlines of the daemons our mercy had allowed to escape. This was the way of the Repentia; you take barbaric weapons and rush to the forefront of the nearest holy war. You lose yourself in battle, purifying yourself until you either make amends for your sins or have proven yourself by fact that you miraculously survived for this long with nothing but your faith as armor. My heart raced as I found myself flying towards battle with a loincloth and a sword to my name.

“You seem committed to impressing me!” Cassandra laughed as we waited patiently aboard the ship. She patted a hand on my thigh, rubbing against the edges of my loincloth. I cracked my uneasy smile.

“Better to die serving you than leave you to fight alone,” I sighed, resting my head on her shoulder.

“I would have been fine,” Cassandra mused as she put a strong arm around me. “Now that I must watch out for you as well, this may actually start to feel like a punishment.”

“I am not that bad!” I objected, kissing her on the cheek. I wondered if it would be the last good moment we would have together. “Though how do they expect you to work this thing?” I asked, glancing towards my massive weapon strapped down across from us.

“You will learn quickly. You will have to. Use the strength of your heavy weapons training with the finesse of your fencing courses. Don’t bother to overswing, because it doesn’t take much for it to tear through even demon flesh. I’ve seen tanks be cleaved open by an eviscerator before.” She turned and rested her cheek to mine as she whispered in my ear.

“Worry not, child. The Emperor’s love protects us, and mine shall protect you.”

As soon as we touched down, we were registered with the Mistress (a stern and silver-haired motherly sort with a tome in one hand and an electrically crackling whip in the other. The whole day was a blur of registry, transport and a quick course training us with our brutally primitive weapons. We arrived at our Repentia unit, full of similarly garbed women. Another Mistress of Penance was there, overseeing and recording the details of every scorned Sister like she was wrangling a pack of dogs. Some of the fellow Repentia wept as they muttered prayers of forgiveness. Several were lined up for lashings, whether for punishment or requested to aid in their penance. Some paced and frothed, frenzied by their eagerness to prove themselves. Off to one side was what I recognized as a Penance Engine; a towering mechanical walker, where a barely-dressed woman (a former priestess of the Imperium, judging by the shredded clothing) hung with her arms outstretched on the front of it like a meaty shield. Her eyes were wild and glassy, seeming to be in some sort of sleep-like state. They were true sinners, wired and attached to their warmachine to hurl themselves into battle, unforgiven until they took down enough enemies to be worthy of an end to their pain.

All Sisters tended to be serious, but this was a truly grim place. All had something to prove and would find their forgiveness by death or glory. Every Sister was willing to die for The Emperor, but I certainly wasn’t making PLANS to.

“Feed,” the Mistress who had lead us here said firmly. “And find a place to rest. We charge by the second moon’s first light.” With that she turned to watch the lashings, their latest victim’s wails a euphoric grunt rather than sobs of pain.

We ate and found one of the simple tents. Some slept in the dirt and mud as part of their willful suffering, but we at least wanted to be rested and alert when our time of true judgement came. In the partial cover of the tent, I sighed and looked towards Cassandra.

“Is it wrong to say that the look suits you?” I joked.

“Do I truly have the face of a sinner?” she teased, removing the simple leather veil from her hair. It was true though; as lovely as she was, Cassandra was built like a deathworlder. Her tall and muscular build painted with scars looked more befitting a primitive with a sword than a woman of the cloth. I found myself blushing as I saw her in such brutally befitting (and skimpy) attire.

“Your face is not the problem, Cassie,” I corrected. No point in using formalities now that we were disgraced. She must have had the same thought as she reached beneath my shirt and groped my breast, pulling me into her lap. I let out a small yelp as I was made to straddle her bare and muscular leg. Even after I’d bulked up from my service in the field, she was able to manhandle me easily enough. Not that I ever really tried to stop my older lover…

“What has gotten into you?” I giggled, naturally appreciating the distraction from our dishonored banishment.

“It’s a true lifting of a burden, is it not?” she chuckled, nibbling at my earlobe. I shivered at her kiss and voice, my hips grinding over her taut leg muscle. “No armor to disrobe, no guns to maintain, no meetings and no rituals… only you, me, and glorious combat.”

“And… the combat doesn’t concern you?” I panted, but she was already manipulating me easily. My nipples grew hard in between her fingers, which she eagerly pinched and pulled. My young and bouncing breasts were tugged along after my erect nipples like balloons led on strings.

“Should The Emperor forgive our flaws and mercy towards our allies, we shall be spared and forgiven,” she said with simple, absolute confidence. “You act as though our kindness was not righteous. We shall live to have our honor restored and all forgiven, returning holier and more trusted than ever.” Her strong hands squeezed my breasts once more before rubbing over my thighs, spreading my legs out until my loincloth barely covered anything. I blushed harder even as I leaned into her, letting her kiss her way down my neck.

“But… but the overseers...” I muttered softly.

“What are they going to do? Strip me of my life’s work AGAIN?” Cassandra chuckled against my throat. The embarrassment and guilt of it all just made it that much more exciting. Probably not unlike the moaning penitents being flogged outside, their howls and moans making our foreplay go quite unnoticed. Her hand dipped between my legs and slid two fingers inside me. My eyelids fluttered from the familiar fingering, my mouth hanging slightly open. Cassandra was quick to snatch up my vulnerable lips, tilting my head to kiss me full on the mouth. My tongue met hers like an old friend as I felt my righteous lover fill me with her passion.

“My naughty little apprentice,” Cassandra hissed into my ear. “Speaking out of turn and throwing yourself at the mercy of the Sisters Repentia. Just begging to be punished, aren’t you Aurora?” My toes curled at her more aggressive dirty talk, nodding rapidly as I stared into her face. She gave me another deep kiss before she pushed her hand against my groin. She guided me off her lap before grabbing my hair, pulling me back into her. Rather than sitting in her lap, I was bent over it. My warm pussy pushed against her knee as my tender breasts hung across the other side of her legs. I felt her strong hand cup my ass cheeks, squeezing one firmly as her fingers grazed my labia.

“Perhaps you seek further forgiveness,” Cassie cooed. She smacked my ass as I shuddered from the guilty pleasure that coursed through me. It wasn’t the first time she had spanked me when we were feeling especially playful, but it felt especially powerful this time. I had taken this burden for her, and feeling punished for it felt so rewarding.

“Yes, Sister Cassie! Please have mercy!” I moaned as she peeled back my loincloth to expose my ass and privates to her.

“Mercy is what got us here. You shall have none,” Cassandra purred. Two more loud, hard whacks matched the stinging pain in my round hips. I bit my lip and dug my nails into her leg, stifling my squeal of pleasure. It was nothing compared to all the chanting and wailing going on about the camp, but it was an instinct at this point to stifle myself.

Cassandra kept up her spanking, getting my eyes to water as the stronger Sister paddled me like a disobedient child. My ass was soon red and sore enough that just her fingers tracing along the soft flesh made me tingle and mewl. To my humiliating relief, she began to cup my pussy in between slaps, dampening her fingers in my guilty juices. She would rub it over my aching cheeks like an ointment, just for the wet flesh to provide even louder slaps when she returned to my spanking.

I let out a shameless groan as she pulled my hair, too caught up in the moment to care anymore. I arched my back, grinding my hips against her rubbing fingers to plead for more. It made my heavy breasts wobble, slapping against her leg between my humping and her especially hard spankings. The combination of guilt, joy, pain and the attention of my lover felt like a culmination of everything I had learned in the Sororitas, but with the fact that my lady’s approval and the degradation of joining the Repentia. It really was a weight lifted like Cassie had said. Her deep, curling fingers squished loud enough to match my passionate cries, howling with pleasure and pain as she pulled my hair like she was trying to rip it out.

I finally squirted my passionate orgasm over her fingers and thigh. My mad howls seemed to go unnoticed as Cassie’s strong grip held me in place. I finally let myself slide to the ground, resting my head against her lap. Cassie smiled down at me as she stroked my hair.

“Whatever comes and whatever our accusers may say,” Cassandra assured her softly. “You have always done me proud, my little sister.”

“Thank you,” I sighed wearily. Emboldened by our disgraced position, I slid my hands under her loincloth. I pulled her hips closer to me, pressing my face between her legs. She ran her fingers through my hair as she moaned, clasping her strong thighs around my cheeks. I flexed my fingers as I raked them down her strong lower back until they were buried into my mentor’s toned ass. If we were to be equals on this part of our service, I planned to repay her in mind.

I rolled my tongue inside her, quickly catching it around her swollen clit. My kneeling mentor ran her hands over my body in praising strokes, cupping my heaving breasts as I licked and inhaled her warm and welcome pussy. It would be one of the only comforts I would know in my service as a Repentia, making me treasure my hero’s pussy more than ever. She was clearly wet and aroused by my punishment, quickly gushing her cum over my longing tongue. I had all but worshipped the woman in the past, but as we intertwined our bodies alone in the miserable tent, I felt like the older woman who had outranked me was truly equal.

I had expected to be uneasy about flinging myself into battle half-naked with an exhaustingly heavy sword. But as our unit approached the battlefield and the Mistress of Penance barked her last berating commands, my fellow Sisters Repentia chanted war prayers under their breath. Cassandra joined them in solemn prayer, but they rapidly built in speed and volume. They didn’t even speak in unison, engaged in their own ritualistic chants of choice. The carrier was soon shaking with the warrior women screaming themselves hoarse in praise of The Emperor. My heart raced in echo of their words and as soon as we even started to stop we threw ourselves towards the nearest targets. Our allies clearly knew to get out of the way as the screaming nuns berserk on righteous bloodlust couldn’t rush towards the hordes of corrupted soldiers and daemons fast enough. 

That much divine fury was contagious and I can’t remember much of those battles to this day. I just have flashes. I remember carving through a hideously slutty daemonette from skull to groin in one stroke of my massive blade. I remember the mad screaming of the Penance Engine pilot piercing my ears, ringing louder than her robotic fists crushing a heretic to mush. I remember seeing an unknown sister being torn in half by a great, blue-skinned daemon. I flung myself at him with redoubled fervor rather than fear and swung in a mindless rage. 

I regained my senses several hours later, every muscle aching and caked in tears, sweat and heretic blood. I spotted Cassandra with a few fresh wounds but still standing, so I ran to her and kissed her regardless of the gore across our skin. I received a shocking lash from our Mistress to get me back in line, but I still feel like it was worth it.

Sometimes I smile to think back to those days. The visceral feel of an eviscerator is simply unmatched, so heavy with its size and additional moving parts that it felt like I poured my very lifeforce into the blade. It took many battles but I matched Cassandra’s ferocious passion for slaying the heretics. Our fellow Repentia departed, purified in death or released from their sentence, until one day we were returned to our former glory. We walked back through our familiar old Imperial cathedral, even if most of the Sisters present didn’t even recognize me. Some rapidly developed muscle and a sizeable gouge that had blinded me in one eye could do that to a woman. I had it replaced eventually, but I kind of liked the look of the eyepatch.

Cassandra had picked up a few more scars but we had returned purified in the fires of battle. Cassie was returned to her title, fully forgiven and more honored than when she left. The same went for me, as I was immediately promoted to a fully recognized Sister of Battle. I was surprised, but after all, I had seen more combat in the last month than some of the recruits would see in a lifetime.

The ceremony was held promptly after my return. Cassandra handed me my holy chainsword as I was presented with my blessed power armor, and I couldn’t help but crack a hint of a smile. I was supposed to remain respectful but proud throughout the ceremony, but Cassie flashed me a look as she gave me the weapon. “It’s no eviscerator,” she seemed to suggest, as if my trusted weapon was more of a medal than anything else. Finally dismissed from my promotion ceremony, I returned to my own, newly assigned quarters. Cassie came with me, neither of us willing to put an end to our love due to some silly promotion. My new title was a true honor, but I was proudest to say that even returned from the Sisters Repentia, I was still my hero’s equal.