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Mass Effect. Erotic journey	By : Kirill_Blackjackoff Category: -Misc Video Games/RPGs > AU - Alternate Universe Views: 253 -:- Recommendations : 0 -:- Currently Reading : 0
Disclaimer: I do not own Mass Effect, nor the characters from it.

Chapter List
- 6
- 7
Characters: Karin Chakwas, Urdnot Wrex
Location: S.S.V. Normandy

“…two more crates of auto-injectors, QR-6 chillers, and have them replace the battery. Better yet—send a few spares while they’re at it.”
“Yes, ma’am,” replied the supply officer — a young man with a round face, sharp cheekbones, and ears far too large for his head. “G. Barrett,” read the name patch on his chest. Doctor Chakwas read it out of habit. She couldn’t remember this boy at all, which was strange. After all, she was responsible for the physical health of everyone on board, no matter their role or rank. But this Barrett... she drew a blank. Not his name, not his face.
Peculiar.
The young soldier exited, leaving the doctor alone in the med bay. Chakwas set the datapad aside — the same one she’d been using to check off the latest delivery manifest — and sank heavily into the chair nearby. She was desperate for a moment of peace, especially since such moments had become so rare lately.
And it wasn’t just the increased demand from the squad or the crew. No — the real reason was the most recent alien addition Shepard had brought aboard. Liara T’Soni. Daughter of Benezia and, conveniently, a brilliant archaeologist.
No, Chakwas didn’t dislike the young asari. Quite the opposite — deep down, she admired her determination. The girl had survived a geth assault, the death of her entire research team, and then the loss of her own mother — killed by none other than the man whose ship she now traveled on.
In Chakwas’ opinion, any one of those events would have broken a weaker being. But Liara had remained composed. She’d even proven to be a valuable member of the crew — assisting Shepard not only during ground ops, but also lending a hand in the med bay. Of course, only when such help was actually needed — which, truth be told, wasn’t all that often.
Still, despite all those admirable qualities, there was something about the asari that bothered the Alliance doctor deeply: Liara was always around. She almost never left the small room located just behind the med bay — the same room Chakwas had long ago converted into her own private resting space.
Sure, Shepard would occasionally bring Liara with him on missions — either for her biotic skills or because he needed quick access to her encyclopedic knowledge of the Protheans. But whenever that happened, some new responsibility always arose to pull the doctor away: treating injuries, managing crew logistics, refilling the team’s supply of penicillin…
It had been almost a full week since she’d last been alone. Alone — with herself. And with that asari device known as the Embrace of Eternity — her one and only man for many, many years now.
Chakwas hadn’t expected it to become a problem. Her buzzing friend had once been enough just once a month. But lately… Lately, things were different.
No point denying it — it all changed after that one time. After she gave in and took the Captain’s cock in her mouth. Since then, her thoughts had kept replaying that moment — the feeling of his thick shaft forcing its way into her throat, and the overwhelming euphoria that followed. A real orgasm. True one.
That’s why she now longed to be alone again with her favorite toy — even if she couldn’t truly relive that moment, she could at least try to chase the same fire it had ignited in her.
“Why… why do I keep thinking about him?”
The question raced around her brain like a teasing locomotive. But she already knew the answer — too long without a man, no one to touch her, to hold her… But most of all — Shepard’s cock had been magnificent. Oh, where had her youth gone?
If she were even ten years younger, she would’ve tried. She really would’ve tried to seduce him. But now?
Now he had no reason to pay attention to some gray-haired old doctor, not when there were so many beauties on board for him to choose from.
Just look at Liara.
The way she spoke to him... the tone of their conversations… It was obvious. Even if Shepard hadn’t noticed it yet, T’Soni clearly had feelings for him that ran deeper than friendship.
The only question was what he felt in return. On the one hand, he didn’t seem to treat her any differently than the rest of the crew. On the other — he never missed a chance to swing by the med bay and exchange a few words with the blue-skinned beauty. Well… if sparks ever flew between them, then…
“I don’t envy that little blue pussy,” Chakwas muttered, then immediately recoiled at herself.
What the hell was going on with her? She was a senior medical officer in the Alliance Navy and here she was — cracking crude jokes in her own head like a jealous teenager? That wasn’t just immature — it was ridiculous. What business of hers was it, really, when, where, or into whom the Captain chose to stick his cock? None. None at all.
She had to clear her head. And now, finally, was the time. Liara had gone off to explore the Citadel — her first visit, apparently. That meant she wouldn’t be back for at least an hour or two. Maybe more. And that meant that Doctor Chakwas… finally had the med bay to herself. Which meant the doctor had at least an hour, maybe two, before Liara would return — and with her, the complete impossibility of indulging in pleasure.
Standing up from her chair, Chakwas made her way firmly toward the door to her quarters. It had already begun to open when heavy footsteps echoed behind her. She turned instinctively, exhaling loudly, trying to sweep the lewd memories from her mind — the same thoughts that had helped her mentally prepare for time alone with her vibrating companion.
At the threshold of the med bay stood Urdnot Wrex — the massive krogan, another of Captain Shepard’s combat team.
“Doc. I need help,” he said flatly, already tugging off the upper portion of the jumpsuit he occasionally wore instead of his battle armor.
Karin quickly looked away — no one knew her own physiology better than she did, and she understood all too well that staring at a muscular, hulking male body while her pussy was still tingling in anticipation of an intimate session with her favorite toy… was, at the very least, a bad idea.
Krogan or not, his predatory, masculine build would no doubt appeal to females of many races. Asari, for example. Or humans. Especially the less educated ones, who tended to believe that since krogan musculature followed human anatomical patterns, their cocks must only differ in size.
What those thrill-seeking little fools didn’t know was that a krogan cock wasn’t just “bigger.” It was a weapon. A dangerous one. Capable of causing serious injury to any partner foolish enough to underestimate it. Chakwas had encountered more than one case during her career — torn vaginas, ruptured tissues, women who’d let curiosity get the better of common sense and ended up on her operating table.
She was sure they never made that mistake again.
Then again… sex with a krogan was possible. Technically. Much depended on physiology — both male and female. Not all women suffered for it. Some, in fact, claimed the experience was beyond anything they’d ever known. A few even came back asking for more.
Still, Chakwas had always believed that the risk outweighed the reward.
But…
After the blowjob she’d given Shepard, her perspective on size had shifted considerably. She knew what she liked — and she couldn’t deny it: if the Captain had been smaller, she might never have crossed the line. Never would’ve risked her career for a few minutes of sloppy, mind-blowing filth. In the end, it was that cock — the sheer size of it — that had turned her, however briefly, from a proud, disciplined woman of medicine into a cum-hungry, dick-drunk whore.
"Right," she thought. "That is exactly what I don’t need to be thinking about right now."
Too late. The memories were already kindling a low, dangerous heat in her belly. The image of Shepard’s cock ramming into her throat — stretching it, breaking it with its thickness — was so vivid she had to physically turn her head away from Wrex, just to make sure he didn’t see the flush rising across her aging but still striking face.
“Y-yeah… Wrex. You… what is it? How can I help you?” she managed to say — only on the final few words regaining enough control to add firmness to her tone.
Her gaze, inevitably, fell on the krogan’s body — scarred, broad, heavy with dense muscle. But she was confident he didn’t suspect the real reason for her interest. Krogan weren’t exactly known for reading between the lines. And while Wrex was… different from most of his kind, she was pretty damn sure mind-reading wasn’t one of his abilities.
“Well… here’s the thing.”
She was almost sure that the grizzled merc hesitated. He even cast a quick glance at the door, like he was wondering whether to just walk away. But in the end, he finished the sentence:
“I’ve got… issues. It’s the genophage.”
“In what way?” Karin asked, confused.
She sat down on the edge of the chair again, automatically smoothing the folds of her coat — only to realize too late that from this angle, she was looking up at the krogan, which made him seem even more massive than usual.
“Well… the genophage. I’m sure you know the basics, so I won’t go over it.”
Doctor Chakwas, of course, was no stranger to the genophage. A biological weapon engineered specifically to suppress the Krogan Rebellions. The virus worked by "devouring" essential genetic chains in order to power its replication. To be effective, it had to alter every single cell in the krogan body — otherwise, their race’s natural regenerative abilities would simply repair the damage. Once all target genes were corrupted, the virus would die from lack of fuel, preventing mutation or further spread. The resulting genetic dysfunction was hereditary. In the end, only one in a thousand pregnancies resulted in a live birth. The virus didn’t prevent conception — it merely rendered the resulting embryos too weak to survive. Most offspring were born dead… or not born at all.
“Of course, Wrex,” Chakwas said after a pause. “I… do you need assistance?”
“Yeah, Doc. There’s a problem I can’t deal with on my own.”
“What kind of problem?”
Instead of answering, the krogan walked right up to her and — with absolutely no ceremony — dropped his pants to his knees.
“This kind.”
His cock wasn’t hard. But even flaccid, its size was as alarming as expected.
Karin didn’t even bother trying to calculate it in inches — there was no point. There was nothing to compare it to. Even Shepard — whose dick had been, by far, the largest she’d ever seen on a human — would’ve looked modest next to the pendulous monster dangling between Wrex’s legs.
The krogan’s shaft differed from a human’s in more ways than just scale. It was conical, thicker at the base than at the tip. The massive, purple-tinged head alone had to be about two inches around. Veins coiled around the shaft like decorative ribbons, pulsing beneath the skin before disappearing into the heavy, armored ridge of flesh that merged into the scrotum — a scrotum that held four balls, each so absurdly large that Chakwas genuinely had no idea how he managed to fit them into a pair of pants, let alone walk without discomfort.
Truthfully, it was the balls that drew most of her attention — though dragging her gaze away from that thick, swaying dick was proving to be a Herculean task for a woman who, to her shame, now felt a flush rising across her cheeks.
They were enormous. But right now, they were inflamed — visibly swollen, easily twice or even three times their normal size. From her studies in xeno-physiology, she recalled that krogan testicles were normally the same color as the shaft… but these had a deep, bluish hue. They trembled slightly as they hung low, swaying gently in rhythm with Wrex’s deep, steady breathing.
Karin suddenly realized she’d been staring at his groin for much longer than her medical training allowed. Her throat had gone dry — though paradoxically, her mouth felt... wetter.
Without thinking, she reached out — overcome by the urge to touch them. But at the last moment, she stopped herself. Touching alien genitals, especially with visible inflammation, required decontamination protocols. Gloves. Surface sanitation. Standard procedure.
She just stared.
“You see, Doc?” Wrex’s voice was steady, utterly unbothered. “Feels like they’re gonna explode when I walk. Hurts like hell. Any ideas what this might be?”
He spoke about his situation as casually as if he were asking for a refill on medigel after a rough firefight.
“Normally, we krogan handle our shit ourselves. That’s what all the backup organs are for. But this one’s... let’s say it’s not something I can treat on my own.”
“One organ,” Chakwas said, catching his meaning. “Even if it comes in a set of four.”
She lifted her gaze toward him again — and the towering krogan standing bare before her made her feel even smaller than she was. The fact that he stood there, naked, unfazed, completely comfortable in his skin, stirred something deep inside her. Maybe it was because just minutes ago she’d been entertaining filthy fantasies about Shepard’s cock. Or maybe it was because... well, she’d always had a certain weakness for massive, masculine anatomy.
And she did like what she saw. So she made a decision — a quiet, internal shift.
Today, perhaps, certain medical protocols could be... bent. For example, she didn’t reach for the disposable gloves, nor did she ask Wrex to lie down on the medical table for a scan to determine the cause of the physiological abnormality. Instead, she chose to begin the examination differently. And with both hands, she reached out toward the krogan’s enormous balls.
“Hey, Doc — careful!” The krogan snorted heavily and drew back a little when Chakwas’ long, elegant fingers — nails neat and regulation-short, but still undeniably feminine — brushed lightly against one of his swollen balls.
The tension radiating from those massive organs was unmistakable. Chakwas recognized it instantly. It was as if Wrex stood balanced right on the edge of orgasm — except for some reason, release never came. His testicles, swollen reservoirs of seed, felt ready to burst from sheer, unspent desire.
“Wrex,” Chakwas murmured, not lifting her gaze. She knew exactly how unprofessional she was behaving, skipping straight to tactile examination before even a preliminary scan, but she also knew something else: she liked it. Liked the way those enormous, cum-heavy balls felt in her small hands.
“Doc?” The krogan’s breathing had grown heavier, more labored.
“When was the last time you…”
What exactly was she trying to ask? When was the last time Wrex… what? Came? Spilled? Jerked off? Fucked? The absurdity of it almost made her laugh. Despite all the hours she’d spent in xenobiology lectures, she was suddenly keenly aware of just how little she knew about the practical side of the krogan reproductive system.
If her patient were human, she could have simply asked when he last ejaculated. But this mercenary was older than her by centuries — by more than ten times her lifespan — and she hadn’t the faintest idea how to phrase it.
“When I last what, Doc?” Wrex asked at last, clearly tired of her hesitation.
Chakwas inhaled deeply, forcing composure. But she didn’t take her hands away. Her fingers kept moving gently over his swollen sack, careful not to let her nails scrape the sensitive skin. Stroking, massaging, weighing those heavy orbs in her palms, she finally raised her eyes and, summoning every ounce of professional tone she could muster, blurted it all out in one breath:
“Your testicles are inflamed from prolonged sexual abstinence, Wrex. It happens to every sentient race whose physiology requires reproduction. The genophage may have altered your genetic structure, but it didn’t erase the need for sexual release. This is completely normal. It’s simply that in your case, the result of abstinence manifests more severely than it does in the other males aboard this ship. I can recommend—”
The krogan cut her off with a sudden sweep of his huge hand. For a moment Chakwas flinched, half-expecting a blow. Instead, Wrex chuckled — low, amused.
“Doc, I’ve lived for centuries,” he said. “Do you really think in all that time I haven’t learned how to handle my own… what was it you called them? Physiological needs? I understand the genophage better than any human doctor ever could — no offense. If I were here to ask what was making my balls feel like they’re about to explode, I wouldn’t have bothered coming to you. I know damn well what the cause is. And you’re right — I need a female. The genophage didn’t blunt our sexual appetites. We still need the act, just as much as ever.”
“Then… what exactly is your question?” Chakwas froze, her hands finally slipping away from his heavy sack.
“It doesn’t help,” Wrex rumbled, and this time there was no mistaking the disappointment in his voice. “There aren’t many chances to satisfy those urges on your ship, but I managed. Problem is, with human women, it always ends far too soon. You’re too fragile. With asari it works better — they’re built for it. But that one, your T’Soni…” He snorted. “She reeks of inexperience. Doubt she’d last five minutes.”
Wrex drew in a heavy breath, as if he could truly smell the trace of virginity clinging to the blue-skinned scientist. Karin, meanwhile, was frantically trying to steady her thoughts, to rein in the storm in her head. Had Wrex already fucked someone on the ship? A human woman? But who? And how was it even possible, when sex with a krogan would almost certainly leave consequences? And even if so… what then? The krogan was right: physical intimacy was a vital need for his physiology, and it was foolish to hope his arousal would simply vanish like magic.
“Wrex, I understand,” Chakwas said, carefully maintaining composure. Her eyes dropped again to Wrex’s balls, which during their conversation seemed to have swollen even larger.
God, they’re just overflowing! she thought. A sudden, shameful curiosity flickered through her: just how much cum could a fully mature krogan produce? Especially one tormented by long-term frustration? She remembered the sheer effort it had taken to swallow Shepard’s load — and how much there had been — and yet, as far as she recalled, a human male’s balls were half the size of Wrex’s. Half the size in both volume and number.
“Then help me, Doc,” the old mercenary said.
“But how?” Chakwas’ mind raced, spinning through possible solutions but finding none. “We don’t have any medications on board that could help you…”
And then it hit her — the obvious solution.
“Perhaps you could… stimulate yourself,” she suggested uncertainly. “Masturbation is quite effective, provided one doesn’t overindulge. Without a female of your own species on board, I don’t see any other options…”
“Doc, you disappoint me.” The krogan’s voice turned unexpectedly sharp. “Do you really think jerking off is enough? Maybe that works for your men, but not for me. I’ll be blunt. Of all the females on this ship, you seem by far the most experienced. So I want you to help me satisfy my needs. And in return, I’ll satisfy yours.”
A heavy silence filled the med bay, broken only by the krogan’s breathing and the faint hum of the ship’s engines. Shock and outrage surged in Chakwas, and she leapt to her feet, ready to tell the massive mercenary exactly what she thought of his crude proposition. But when she opened her mouth, the words stuck in her throat. Professional instinct crushed down the wave of emotion, and with monumental effort, she managed to compose herself.
“Wrex,” she began, carefully picking her words, “I understand your problem, but I must remind you that conversations like this fall completely outside—”
She stopped.
Because Wrex, ignoring her words, had begun to stroke himself. Slowly. His enormous hand worked up and down his still-limp shaft, and the organ — as if it had only been waiting for permission — began to harden and rise.
She couldn’t believe her eyes.
In a matter of seconds, the krogan’s once-flaccid cock had taken on magnificent form, swelling upward, heavy and rigid. It already reached nearly 12 inches, thicker and longer than Shepard’s — and, impossibly, it kept growing. Karin froze, mesmerized by the transformation, hardly noticing when the mercenary casually shed first his boots, then the rest of his pants.
“You… what…” The words refused to form, leaving her staring upward at his face, her expression more astonishment than anger.
And only then did she realize: the krogan was jerking off while staring at her. At her body — tightly wrapped in the snug, dark-green uniform she always prided herself on. She liked her uniform; she knew she still looked good in it, despite her years. A flat stomach, long legs, round hips — not so easily hidden from hungry eyes. And Wrex’s eyes were very hungry now, locked on the body beneath her suit.
Then he moved closer. Dominant.
Before she even had time to process the fact that against the towering, muscle-bound giant she had no chance of resistance if he chose to press his will, his hand moved with startling dexterity, finding the clasp of her medical uniform at her shoulder and tugging it down.
The coat slipped treacherously onto the cold floor.
Whatever criteria Wrex was using to judge the doctor, by human standards Karin Chakwas was a strikingly beautiful woman. True, she was no longer young, but age had graced her with a magnetic allure that she appreciated far more now than during the carefree, even reckless days of her youth. Thanks to modern medical and cosmetic technologies, her taut, supple body bore no visible trace of age or excess weight. Her skin was smooth, an even shade of creamy beige that drew the eye and refused to release it, inviting the gaze to travel — from the elegant curve of her neck down to her delicate shoulders, continuing over the swell of a modest but perfectly rounded chest contained in a simple black bra, sliding down the slope of her hips to be stopped only by the thin barrier of her panties, and then falling lower, surrendering to the flawless lines of her legs, ending in slim calves and tiny feet still, for some curious reason, trapped in her military boots.
A tremor passed through Chakwas, but not from the cold. What she felt was a strange, potent arousal, stirred by more than one cause. The lingering thoughts of Shepard’s cock that had plagued her for days, her newly discovered fixation on larger endowments, the gnawing sense of perpetual frustration that refused to leave her, the sheer dominance Wrex radiated as he regarded her as nothing more than an object for his satisfaction, and the forbidden nature of it all… Each factor collided within her. The awareness that she — a doctor — now stood almost completely naked before her patient blazed across her mind in crimson letters: taboo.
And yet, one glance at Wrex’s enormous cock — which, the moment she shed her uniform, stiffened to full hardness — was enough to banish every thought of impropriety. By the time Wrex’s eyes, after finishing their deliberate journey down her body, returned to her face, they met not fear or shock, but a look burning with reckless, dangerous desire.
Karin lowered herself to the floor, settling onto her fallen uniform. Now eye to eye with the krogan’s cock, she hesitated, as though still wrestling with some final shred of resistance. But Wrex, aroused past any point of patience, gave her no such luxury. Without a word, the mercenary ran his hand a few more times along the length of his nearly eighteen inches long organ, squeezing a bead of clear fluid from the swollen head to drip onto the floor, and then guided the massive shaft toward the mouth of the kneeling woman.
And Doctor Chakwas, surrendering to the heat that flared through her body from her belly outward, parted her lips willingly, stepping boldly over the last boundary of what was forbidden.
The woman’s lips simply couldn’t stretch wide enough to take in the krogan’s massive head — no human female could have — but with practiced skill she tilted her head to the side and began running her lips along the thick length of his shaft, refusing to dwell on how absurd the whole situation might have seemed. Her entire world had narrowed to Wrex’s magnificent cock — it reigned supreme in her thoughts, and it reigned in her mouth, which worked diligently to worship every inch of alien flesh she could reach.
She didn’t lift her gaze; she wasn’t sure what she might feel if she met the old mercenary’s eyes. Instead, she surrendered completely to the act, exploring with her eager tongue every raised vein along his enormous shaft, gliding her lips over its length, covering every part her mouth could reach with wet kisses. Her hands wrapped around the cock just below the thick, pulsing crown, still weeping beads of milky fluid, and she began to stroke it slowly, savoring the realization that even with both hands she couldn’t circle the base of Wrex’s monstrous organ.
“So huge…”
She breathed the words in a gasp, her voice heavy with awe, and felt a wave of happiness surge through her chest. She loved this — loved that such an enormous cock was in her grasp, loved that it had grown this hard because of her, loved the way the mercenary’s breath hitched under her touch. Wrex gave no reply to her whispered praise, but she hadn’t spoken for him anyway. Right now, she was speaking only to his cock — the man attached to it barely seemed to exist.
Between the doctor and that alien shaft there had formed an almost forbidden connection, something primal she couldn’t explain. Just as she couldn’t stop the heat flooding her panties, just as she couldn’t pull her lips away from the krogan’s flesh. His cock was so massive that her spit alone wasn’t enough to cover its full length.
Frustrated, Chakwas tore her mouth away from the most glorious cock she had ever tasted. It felt like punishment. To make up for her body’s failure, she shoved several of her own fingers deep into her mouth and began roughly fucking her own throat with them, eyes squeezed shut as her body produced extra saliva to ease the burn, her own reflexive attempt to compensate.
Above her, the krogan snorted with mild irritation. He clearly preferred the feel of her lips and tongue to her dirty improvisations. Still, the woman was skilled, seasoned in the art of oral pleasure. Without swallowing a drop of the saliva pooling in her mouth, she rose slightly on her knees, let the fluid trickle out in a thin stream between her lips, and smeared it along his cock, spreading it from the thick crown down its veined shaft. Her two small hands squeezed the massive flesh tightly as she stroked, jerking him off with a fervor born of lust.
Now his sex organ gleamed, slick and glossy with spit, looking even more magnificent, even more delicious. Chakwas wasted not a second — she bent forward again with redoubled passion, lips sliding hungrily along his powerful length. And as she did, disappointment stabbed through her chest: what she wanted more than anything was to feel that krogan cock stretching her throat, to take it deeper, to be filled.
As if in answer to her filthy thoughts, she became acutely aware of how soaked her panties had become, clinging to her pussy, drenched with the heat of her arousal.
I’ll try! she decided suddenly, pushing aside the faint stirrings of self-preservation in the back of her mind and focusing all her attention on the krogan’s massive cockhead. Precum dripped from it in such abundance that droplets were already soaking into the medical uniform lying discarded beneath her, but the doctor no longer cared.
She opened her mouth as wide as she could, trying to force the swollen head past her lips. The corners of her mouth ached, stretched to their limit, but the crown was simply too large to fit inside. Still, a slick mouthful spread across her tongue, and the moment it touched her, her arousal surged even higher. Without thinking, she swallowed, shuddering at the surprising sweetness of the taste. Then, when she tried again to work the head into her mouth, she suddenly felt a massive, calloused hand grip the back of her skull.
Her lips felt on the verge of tearing as Wrex pressed down, forcing the doctor’s mouth onto his monstrous cock. Eyes squeezed shut against the pain, Chakwas didn’t even think of resisting — she knew the futility of it. Instead, she tried to relax her jaw as much as possible, to make the invasion even a fraction less brutal. Her lips sealed so tightly around the krogan’s head that it seemed impossible her mouth could stretch any further. And yet somehow she managed not to let her teeth scrape him, careful not to cause the alien even the slightest discomfort.
Her mouth filled with fluid, far more than she could have imagined, and she nervously swallowed again and again, the intoxicating musk sliding down her throat and flooding her senses.
“Enough,” the krogan suddenly growled.
The shaft withdrew from her face, and for a few seconds she instinctively sought it again with her lips, like a babe torn from its mother’s breast.
Then she felt herself hauled up, lifted effortlessly by the arms, and swung up from the floor. With a startled cry, she lost one boot as Wrex, seemingly unaware of the human woman’s weight, carried her as if she were nothing, depositing her roughly atop the laboratory table nearby.
Only then did Chakwas realize: beyond the most magnificent cock she had ever seen, there was also its owner — and he had not come here to let her play with his flesh like a toy. He had come to sate his own needs.
The krogan dropped her onto the metal table like an object, a thing. She struck her lower back against the cold surface, and for the first time true fear bloomed inside her. Until now, everything had seemed like a reckless indulgence, a game she could stop at any time with no real consequence. But lying there now, staring up at the towering alien whose face had taken on a savage, primal expression, the doctor suddenly understood the danger she was in.
A krogan driven to the edge of lust, a creature of such ancient, violent strength that he could probably punch through the hull of a starship with his bare body, loomed over her. Terrified, Karin tucked her legs tight against herself, as though she could vanish into thin air — the long-buried survival instinct finally screaming loud enough to break through her haze of arousal.
She knew. If Wrex decided to take her — and every fiber of his massive frame burned with that intent — she could not stop him.
His cock would kill her. Tear her into pieces, pierce her tiny body straight through, and in his frenzy he might not even notice.
“Wrex, please…!” Chakwas begged, her voice trembling.
The krogan acted as though he hadn’t heard her plea at all. He brushed aside her weakly raised arms, hooked a clawed finger first into her bra, then her panties, tearing the fabric with a sharp tug and sending the scraps of intimate clothing fluttering across the room.
Now utterly naked, Chakwas lay on the cold metal surface of the lab table, staring up at Wrex with fear and resignation, legs pressed tightly together and her hands clutched over her chest in a useless attempt at modesty. One sharp movement was all it took for the krogan to wrench her thighs apart again, exposing to his hungry gaze her smoothly shaved pussy, still glistening from arousal.
Despite the terror running through her veins, her sex gave off a scent so intoxicating that Wrex could not hold back. He did the one thing Karin had least expected from him.
He bent down, shoved his broad, ridged snout between her thighs, and before she could comprehend what was happening, his massive tongue slid out and dragged across her wet entrance.
It was like a surge of electricity tearing through her body. Her skin broke into gooseflesh, and she gasped, jerking forward against the overwhelming sensation. His tongue was far larger than any human’s — each broad stroke covering not just her pussy but her thighs, her ass, even circling over the tight ring of her anus. In just a few swipes, Chakwas felt such a flood of liquid between her legs that she couldn’t tell whether it was her arousal or his copious saliva making her so soaked.
She leaned back and surrendered to the spreading waves of pleasure.
Wrex wasn’t skilled in the finer points of oral pleasure, but with a tongue that size, finesse was unnecessary. Like a loyal beast, he lapped up the juices pouring from her cunt as if they were divine nectar, growling deep in his chest with every taste.
And Chakwas, eyes closed, suddenly felt an orgasm crashing into her. Even his clumsy attentions to her long-neglected slit were more than enough to tip her over the edge. The climax tore through her violently — far stronger than the one she’d experienced with Shepard’s cock in her throat, and beyond anything her asari toy had ever given her. Arching her back, she screamed, trembling as waves of ecstasy rippled down her legs.
And it didn’t stop. She realized with horror and delight she was about to come again. Wrex’s relentless tongue hadn’t slowed, hadn’t wavered, hadn’t tired. Her whole body shook as the second orgasm surged closer, her teeth biting into her fist to muffle the desperate cry welling up from her core.
And then — suddenly — his tongue was gone.
“Nooo…” she moaned, disappointed, reaching desperately for his head to pull it back down between her thighs. But Wrex was already rising, his hulking body looming as he wrapped a massive hand around his cock once more.
It stood fully erect now, weeping precum, the immense shaft swaying slightly under its own weight. But where before it had inspired only fear in her, now — after her orgasm — Karin wanted it. She needed it inside her. Despite the risks, despite everything, she felt ready. Ready to take him.
“Please… be gentle,” she whispered, her voice trembling, barely audible over her own ragged breathing.
And to her surprise, the krogan actually was careful. He seemed to understand instinctively that slamming straight into a human’s body would give neither of them pleasure.
The moment the massive head of his cock touched her pussy, Chakwas arched in ecstasy. And when she felt her lips being forced apart, she couldn’t hold back a loud cry. The sensation of being filled was overwhelming, and still the krogan didn’t stop, sinking deeper with steady force. The doctor felt every inch of his ridged shaft dragging along her inner walls, and she writhed on the table — not from pain, for there was surprisingly little of that, but from sheer delight.
She had long dreamed of having a man’s cock inside her again, and now, with every inch of her pussy stretched to accommodate him, she couldn’t stop the moans spilling out, moans that soon rose into open cries. By then, Wrex had buried half of his length in her dripping cunt, and after giving her a few seconds to adjust, he began slowly pulling back out of her, and the movement ripped from Chakwas a scream so loud it must have carried through the entire deck of the ship.
Good thing I locked the door when I came in, the krogan thought.
His cock nearly slipped free of her slit, only to push back in again — this time sinking a little deeper. That was all it took for the doctor to be seized by a second orgasm. She clutched her small-breasted chest, nails digging into her skin around the tiny areolas, biting her lower lip until she tasted blood. Her breath came in ragged gasps, her pussy trembling around him as if in fright.
But Wrex didn’t stop. The thrusts came one after another, measured, relentless. He held back from driving in all the way — showing restraint, knowing the limits of human women. Chakwas was not the first, nor would she be the last, and he knew well enough that her mature cunt was already stretched to its utmost. It would be a long time before she could find pleasure again in the cocks of human men.
After several minutes of pounding, punctuated only by her gasping, whining cries, a third orgasm overtook her. This one was immense: Chakwas thrashed in the throes of pleasure, fists beating the table, frantically kneading her breasts, pinching her nipples, running her hands down her neck and shoulders, shivering with gooseflesh.
Wrex felt her body tightening around him — then a sudden force pushed against his cock. With one sharp motion he pulled out, just in time for a spray of female ejaculate to shoot from her cunt, splattering across the table and his body. A second, weaker spurt followed, splashing down her legs and dripping onto the floor. Her flushed pussy remained wide open, gaping as if inviting him back into its warm depths, and the krogan had no reason to refuse.
The fucking went on for another five minutes, during which Chakwas climaxed twice more. These weren’t as explosive as the earlier ones, but still tore cries from her throat and left her trembling in spasms. For the first time in years, she felt truly, utterly sated — and terrified it might end too soon, she chased orgasm after orgasm, drunk on the bliss.
Only after the fifth wave of release did Karin finally manage to regain some control of her body, and with it the will to do more than lie helplessly beneath him.
She knew full well that Wrex wasn’t slamming his cock into her to the hilt, and she was immensely grateful for it. But she was also a generous lover — her own satisfaction felt incomplete if her partner wasn’t equally pleased. So she braced her abs, lifted herself slightly, and reached down to wrap her hands around the base of his cock. Her small palms stroked and massaged, jerking him off as he fucked her, adding to the stimulation.
She wasn’t sure if he’d like it — but the deep, satisfied growl that rumbled from the mercenary’s chest told her everything. She even found the strength to meet his eyes while he continued driving into her, unrelenting, tireless. His eyes were closed, his face calm, almost peaceful.
And in that moment, Karin felt a strange flicker of pride.
She could please a man. No — not just a man. A krogan. A veteran forged in centuries of battle.
The realization filled her with such fierce pride that it almost triggered another climax right then. Her right hand kept stroking the giant’s cock, while the other slid down to her stretched pussy. She began furiously rubbing her clit, urging on the orgasm building like a storm ready to consume her whole. Her fingers brushed against the thick shaft as it pistoned in and out of her dripping cunt, slick from her juices.
And just as the climax was about to strike, when she felt the firestorm of pleasure racing through her veins, Wrex suddenly roared — his breath coming heavy, his voice like a wounded thresher maw.
He shifted his massive bulk, pressing his whole weight down over her, and then his cock slammed into her with doubled speed, driving deeper, no longer restrained. He was losing control, pounding her harder, burying himself until she thought he was spearing into her womb itself. Pain and pleasure blended in one savage wave, and in that moment Karin shattered in the most powerful orgasm of her life.
Her scream echoed off the med bay walls, breaking down into sobs as her body convulsed around him. Her pussy clenched and gushed, torn apart by pleasure so fierce it felt like it would rip her in two. She flailed in delirium, fists hammering at the air, at the table, at her own chest, at the krogan’s body. Her fingers tangled in her hair, yanking hard, desperate to ground herself against the unbearable flood of ecstasy.
Nothing existed but him — the colossal cock still ravaging her burning cunt.
But it didn’t last. As she reached for him, wrapping trembling hands around his cock, he finally came.
Hot seed burst inside her — not just spilling, but filling her, swelling her belly like she was nothing more than a vessel for his cum. Her abdomen visibly distended, and still the torrent poured in. She felt the thick fluid spilling back out, her pussy unable to contain it all. And yet, that was only the beginning.
Wrex pulled out, and the sudden emptiness made her feel like she’d lost a part of her own body, as if his cock had become essential to her existence. But the sensation vanished as soon as the next wave hit: his cock erupted, spraying her in heavy streams. Thick, ropy jets of white shot across her stomach, her breasts, her thighs, splattering her cunt and dripping down.
There was so much of it. She realized with a shiver — if he hadn’t pulled out, his release might have torn her apart from the inside.
The krogan growled in satisfaction, stroking himself with one massive hand, angling his spurting cock deliberately to paint every bare patch of her body with cum.
Soon the musk-laden fluid was splashing across her face, in her hair, down her neck and shoulders. His orgasm went on and on, more than two full minutes of eruption, while Chakwas, one eye squeezed shut against the sting of semen, watched in awe as the flood slowly subsided — though even then, there was far more than she could comprehend.
The med bay was drenched. The table beneath her was slick, her entire body from head to toe was glazed in white, and the floor itself was puddled with spreading strings of krogan seed.
Someone else might have frozen in revulsion. But not Doctor Chakwas.
In her years of service she had seen worse… and besides, why lie to herself? Being covered in her lover’s seed — this much seed — felt indescribably good.
The greatest compliment a woman can receive… she thought, collapsing back into the table, sinking into the warm pool of cum beneath her. Her body, spent and trembling, was shutting down.
Her last conscious thought before blacking out was simple, absolute: this is what true woman’s joy feels like.
- 6
- 7
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Mass Effect. Erotic journey