The Commander Gets Commanded

by Enhanced Defense Intelligence (EDI)

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© Copyright 2025 - Enhanced Defense Intelligence (EDI) - Used by permission

Storycodes: FF; F/f; fanfic; scifi; naked; mast; latex; catsuit; machine; gag; clamps; oral; corset; collar; cons; rom; X

This is a fan fiction story based on the Mass Effect series of games by Bioware and EA.

Shepard sighed, letting the hot water wash over her shoulders. That last mission had been stressful. Too many close calls, too many risks. The war with the reapers was going poorly already, and dealing with the constant harassment from Cerberus was only making it worse. If only she could get a moment to relax, a brief escape where the weight of the whole galaxy wasn’t resting on her shoulders, where she could just be a person. Sadly, the closest she got was these post-mission showers, alone in her cabin. In the steam, she could pretend the outside world didn’t exist.

Her mind wandered back a few days ago, to the game night she’d had with Traynor. It started out with a chess game, innocent enough. But she had noticed the look Traynor gave her - had been giving her for a while now, honestly. When Traynor saw the shower, Shepard could see the wheels start turning in her head, the plan forming. When Traynor brought up the possibility of using the private shower, Shepard easily gave in. When Traynor left the shower door open, Shepard could read the implied invitation. She eagerly took the opportunity to keep the conversation flowing, steering it in the obvious direction. When the actual invitation came, Shepard was already ready, the last piece of clothing being draped on a chair as she made her way into the shower.

She wrapped her arms around Traynor, grabbing the soap and “accidentally” rubbing up against Traynor’s back. Traynor gave a small giggle, looking over her shoulder. “Why, Commander,” she said, her voice low and alluring. “If you get too close to a girl, you might give her the wrong idea.”

Shepard gave her a look, then rubbed her soapy hands down Traynor’s toned stomach. “What if that’s the right idea instead?” Her fingers gently roamed Traynor’s body, slowly making their way lower with clear intent.

“Then the girl might just act on it.” Traynor reached down, taking one of Shepard’s hands and pulling it up to rest on her breast. As Shepard started squeezing, Traynor gave a small gasp, reaching down to guide Shepard’s other hand lower. “She might even ask for help making sure all the crevices get clean.”

Shepard squeezed her arms, pulling Traynor tight against her naked body, and whispered in her ear. “I suppose I could help with that.” That was all the warning she gave before slipping her finger down, rubbing firmly against Traynor’s labia. Traynor let out a moan as Shepard teased her, rubbing her pussy while gently kneading her breast. Shepard let out a low growl, leaving down slightly to kiss Traynor’s neck while she slipped a finger delicately inside Traynor’s pussy, wet from way more than just the water of the shower. With her thumb, she started rubbing small circles on Traynor’s clit, making Traynor melt into Shepard’s embrace.

Traynor reached back, rubbing her hands along the contours of Shepard’s tight ass, giving it a firm squeeze. Shepard removed her finger from Traynor’s pussy, making the smaller woman whimper slightly in disappointment, before grabbing Traynor’s breast even tighter and using it as a handle to spin her around. Before Traynor could react, Shepard used her now free hand to grab a handful of hair and shoved her lips against Traynor’s in a deep kiss. Shepard’s tongue darted out, forcing itself between Traynor’s lips and exploring her mouth. Traynor reciprocated eagerly, her tongue dancing along Shepard’s and lightly biting down to trap her tongue. Shepard pulled her tongue back, smiling at the light scraping of Traynor’s teeth against her tongue. “I guess that toothbrush is worth it,” she whispered breathlessly, staring into Traynor’s beautiful brown eyes the color of melted chocolate.

“If that’s enough to win you over,” Traynor replied, her chest heaving as she panted lightly, “then absolutely.” With that, she leaned in for another kiss, eyes closing with anticipation…

Shepard came back to the present, the taste of chocolate still lingering on her lips, to find her hands had wandered during her daydreaming. She pulled her hands reluctantly from her nether regions, finishing up her shower and toweling off. She didn’t bother getting dressed in more than her underwear at the moment. She was tired of living in armor all the time, constantly on alert for an ambush. She didn’t even put on a bra, considering her nipples were still slightly sore from the piercing she got the last time she was on the citadel - Traynor’s idea. The trade off was worth it, though, as Traynor had agreed to the same, as well as a tongue stud. Shepard was looking forward to using that. Luckily, with advances in medical technology, the healing time for piercings was only days instead of the weeks it had once been.

Shepard had just decided to put on a movie, a romantic comedy that was in no way serious and had no combat, blood, or real fighting, when EDI’s voice came from overhead. “Shepard, you should be aware that among my protocols is software intended to monitor crew emotional states to ensure psychological stability, as well as a significant repertoire of methods to assist should this stability waver. And that a portion of these protocols were dedicated and adapted specifically to monitor you as part of ensuring your successful stability following the Lazarus project.”

Shepard cocked her head. “Yes, you informed me back when this was a Cerberus vessel. Why are you bringing this up now?”

“Based on your hormone levels, behavior, and body language, combined with the context of your recent experiences in the field, you are experiencing significant mental stress. My analysis is that the most likely cause is your perceived sole responsibility for the fate of the entire galaxy.”

“I am responsible for the galaxy. I’m the one bringing everyone together. I’m the one chasing down allies and leads, and negotiating treaties because the morons in charge can’t put aside petty grudges centuries old and work together to prevent their own extinction. How many other people do you think could have convinced the Krogan to work alongside Salarians without bloodshed?”

EDI’s emotionless voice sounded over the speaker once more. “Precisely. My clinical opinion is that you need a respite. You need to engage in pleasant activities where you are free from all responsibilities. I have consulted with the individual I believe best qualified to aid you in this endeavor, and we have come to a consensus on a treatment plan.”

“Oh? What did you have in mind?” Shepard was curious now.

“An agreed-upon aspect of the treatment likely to increase its efficacy by a projected 27% is an element of surprise. Please, remove all clothing and then don the unfamiliar outfit located in your wardrobe. It requires full contact with bare skin for maximum effectiveness.” Shepard complied, removing and folding her panties and putting them on the nightstand before opening the wardrobe.

The “outfit” that confronted her was a single piece of clothing, a full body suit made of a shiny black latex-like material. The only visible opening was at the neck, oversized to allow her full body to fit through. Growing slightly skeptical at this point, Shepard addressed the AI in the room. “EDI, are you sure this is the right outfit?”

“Confirmed. Please put it on so we can begin your therapy.” Shepard shrugged. As far as she knew, EDI was trying to help, so the least she could do is see where this was going. She laid the suit on the floor and stepped into it. It covered her entirely from her toes to her neck, with even the sleeves ending in gloves that covered her fingers. It took a little bit of adjusting to get her breasts into their individual pockets, and the suit gave her a bit of a wedgie, but she managed to get it on, and relatively comfortable, after only a few minutes of fiddling.

“Excellent. Now, lay on the center of the bed, face-up, with all four limbs extended towards the corners, similar to a jumping jack position.” Shepard complied, beginning to suspect where this was going. “Now, relax.”

She tried to relax, the suspicions growing in her mind of just what kind of “therapy” she was about to receive. Her thoughts were confirmed almost immediately as a sudden force yanked her limbs, pulling her arms and legs tight and spreading her into a near-perfect “X” shape.

“EDI,” Shepard warned, “what do you think you’re doing?”

The reply came not from EDI, as expected, but from the doorway as it opened. From her slightly lowered position relative to the door, Shepard was able to tilt her head enough to just make out Traynor striding into the room. “Helping you relax, Commander. You deserve a night with no responsibility, and part of that is having no sense of control over what happens. So you no longer have the burden of choice. All you need to do - all you are allowed to do, is what you are told. From this point until I’m satisfied with your progress, you are not giving the orders. I am. First order: you will call me ‘Mistress’ or ‘Ma’am’, understand?”

By this point, Traynor - no, Mistress - had walked over and was standing over Shepard, showing off her tight black corset. She held a thin riding crop in her hand, which flashed out and landed with a loud smack on Shepard’s breast when the restrained woman didn’t respond quickly enough. “I asked you a question. Do you understand?”

Shepard nodded, saying “yes, ma’am’,” her breast still stinging from the unexpected smack.

“That’s better. Now, I want to hear your sounds, but not your words. EDI, suit configuration 2a.”

Instantly, Shepard felt the suit shift, tightening against her body. Before she could fully open her mouth to protest, a strap of the suit’s material snaked up from the neckline, wrapping around the back of her head and forcing its way into her mouth. It filled her completely, expanding to force her jaw open fully but not quite painfully, though it stopped before reaching her throat where it might interfere with her breathing, allowing Shepard to breathe through her nose just fine.

“Mmmph!” Shepard grunted around the gag in displeasure, but Traynor only smiled.

“Perfect,” she purred in her sexy British accent. “Now, what next… Ah, here we go.” She pulled out a drawer from under Shepard’s bed. One Shepard knew had absolutely not previously contained the pair of clamps Traynor pulled out, showing them off to her captive. “EDI, if you would.”

Shepard felt the material once again shifting, pulling away from her breasts and exposing her nipples as Traynor reached down. She took Shepard’s nipple in her fingers, pinching and rolling it a little until it stood erect. Traynor licked her lips, then leaned the rest of the way over and took the nipple in her mouth. She sucked, then gently bit down, eliciting a soft moan from her helpless prisoner. Shepard squirmed, trying to put more of her breast in her captor’s mouth. Traynor pulled back, chuckling at the whimper Shepard released. That whimper turned into a muffled yelp as the harsh teeth of the clamp bit down on the now fully-erect nipple. Traynor placed a soft kiss on the gag covering her lover’s lips, then repeated the process with the other nipple, making sure to put the clamps behind the piercings so they wouldn’t be able to come off accidentally.

“Now, moving on. EDI, 2b.” Shepard suddenly felt a soft breeze on her pussy as the suit retreated, Traynor’s head already lowering. The first stroke of her tongue along Shepard’s already moist lips was electrifying, and her hips bucked into Traynor’s face as much as possible given the tension on her legs. Traynor took the hint and began licking in earnest, her tongue delving into Shepard’s pussy eagerly. The stud on her tongue absolutely proved its value as it served to enhance the stimulation, especially when she flicked it against Shepard’s clit. Traynor reached up with one hand and pulled the chain connecting the clamps, and the combination of sensations paired with her recent arousal from the shower not fully fading proved too much for Shepard. Her whole body spasmed, pulling against the suit holding her immobile as she came all over Traynor’s face in the best orgasm she’d had in months at least. Traynor rode it out, licking and slurping while her face got covered in juices from Shepard’s pussy. Eventually, Shepard relaxed, and Traynor gave one last lick before sitting up. She scooted forward, letting Shepard see the mess she’d made on her face. Shepard blushed in embarrassment and looked away, but Traynor grabbed her by the chin and pulled her face back so Shepard could watch as she wiped her face with her fingers, then slowly and seductively sucked them clean. “Mmm,” she purred, “delicious. But now, it’s my turn.”

Traynor crawled seductively upward, giving Shepard a stunning view of the woman’s cleavage, emphasized by the tight corset. Shepard definitely appreciated the visual, but she was a tad confused when Traynor stopped with her pussy over Shepard’s chest. Not disappointed, because it meant there was a gorgeous pair of breasts in her face. It made more sense when Traynor reached down between her legs and grabbed Shepard’s breast and began rubbing it against her pussy, using Shepard’s nipple piercing like she had used her own tongue piercing, and covering Shepard’s nipple in her juices as she got more and more wet. She made sure to use both, alternating back and forth until both of Shepard’s breasts were covered enough that the clamps might have managed to slip off if not for the piercings locking them in place.

Thoroughly dripping now, Traynor leaned down, giving Shepard another kiss, along with a deep sniff of her own juices still lingering on Traynor’s face. Shepard whimpered slightly, trying to communicate that she wanted to be able to kiss her properly. Traynor smiled, not breaking eye contact as she called out to EDI. “Next.”

Shepard felt the gag pull out of her mouth, retracting from an 0-ring holding her mouth wide open. Knowing what came next, Shepard stuck her tongue out as far as she could, eager to return the favor of a wonderful orgasm. Traynor’s smile widened, quickly being hidden behind her breasts as she positioned her pussy above Shepard’s mouth and sank down, sitting with her full weight and crushing her pussy against the bound woman’s face. 

Shepard thrust her tongue upward, piercing through the folds and getting a mouthful as Traynor dripped through her open lips. She strained against her bonds, trying to go deeper as she moved her tongue hungrily, slamming back and forth like a varren in its cage. Traynor moaned softly, one hand rubbing her covered breasts and the other reaching down between her legs. She played with her clit, rubbing in time with Shepard’s manic thrashing. She began rocking her hips back and forth, humping Shepard’s face as the desperate need built up. Sensing the change, Shepard struggled even harder, moaning herself as she listened to her lover’s arousal. Suddenly, Traynor’s thighs smashed against Shepard’s face, squeezing hard. Shepard was forced to swallow hard as her mouth was filled with juices over and over, the smell overpowering as some spilled across her face and even started running to her nose. With a final shudder, Traynor relaxed, sitting back and letting Shepard breathe. Shepard smiled around her gag as best she could, proud of her success.

“EDI, remove the gag.” Shepard rolled her jaw as the intruder retreated fully, sticking her tongue out to try and lick up the juices around her face like her Mistress had done with her own. Traynor wiped up a patch, then stuck her fingers in Shepard’s mouth. Shepard licked the fingers greedily, sucking them clean. Traynor did it again and again, until Shepard’s face was clear of cum. Shepard moaned around the fingers in her mouth, feeling the slight damp spot pooling on her chest from Traynor still leaking a bit from her pussy.

Shepard felt her own juices leaking once again, running down to make a wet spot of her own on the bed. She bucked her hips slightly, voice pleading. “Please, Mistress. Please make me cum again.” Traynor glanced over her shoulder as she reached back, letting her polished nails glide down Shepard’s toned body, taking her time enjoying the light involuntary twitches Shepard gave as she closed her eyes and whimpered lightly.

After what felt to Shepard like forever, Traynor’s fingers finally found her pussy, slipping easily over her well-lubricated lips. She grinned, repositioning slightly so she was more laying than sitting on Shepard’s body before returning her fingers to their exploration as her lips came down for a kiss. Suddenly, Traynor pierced both sets of lips simultaneously, fingers and tongue working in concert to forcefully explore Shepard’s wet caves. The sudden intrusion on two fronts made Shepard gasp and buck her hips, trying to squeeze around the fingers while opening her mouth wider to accept the invader. Traynor responded by forcing her tongue even deeper, wrestling with Shepard to fully claim her mouth. Shepard fought back valiantly, but lost as another finger slipped inside without warning. As she tried to gather herself once more to fight the intruder filling her mouth, she lost utterly as she felt a pull on the clamps still torturing her nipples. Not hard, but enough to make her lose the ability to concentrate as the lust fogged her brain. When the fourth finger entered her pussy and Traynor’s thumb found its way to her clit once more, everything came together, and so did she, cumming hard as she let out a loud moan.

The waves of pleasure lasted even longer this time, taking her to new heights of pleasure she hadn’t even realized she could reach. She lost herself in wave after wave of orgasmic bliss, Traynor never letting up with neither her fingers forcefully claiming her pussy, nor her tongue claiming Shepard’s mouth. Shepard spasmed repeatedly, muscles straining against her bonds, bucking and twisting, writhing in ecstasy for what felt like hours. Traynor kept going the whole time, not giving Shepard even a moment to catch her breath. She began rocking herself, fingers dropping from playing with Shepard’s breasts to rub her own pussy. As her excitement built, her fingers began working faster, matching the rhythm of her bucking hips until she, too, came, her juices running down and mingling with Shepard’s before running down to cover the sheets. Feeling her captor’s shuddering, Shepard seized the initiative, pulling Traynor’s tongue even deeper and nibbling gently as Traynor moaned in delight, melting into her captive and finally slowing her frantic pace.

The drop in tempo allowed Shepard to finally start coming down, mind still fuzzy from the haze of so many intense orgasms. Traynor eventually pulled herself together, sliding off the woman who normally was her commanding officer to lay exhausted on the bed beside her, utterly spent. She cuddled into Shepard, fingers lazily drifting up to remove the clamps. “EDI, set an alarm for four hours, and disable the restraints. Set suit to corset and collar mode, but be gentle around the nipples. I suspect they’re somewhat sore.”

“Acknowledged.”

Shepard sighed with relief as the force pulling her limbs released slowly, allowing her to move at last and embrace her lover. “Still leaving the suit on, and keeping me collared, huh? Does that mean you have plans to use it again later?”

Traynor pulled Shepard close, wrapping her in a warm embrace and planting a soft kiss on her lips, passionate in a way completely different from the manic forceful kisses earlier but conveying her affection no less strongly. “What kind of therapy only lasts a single session? For now, though, just enjoy this.”

Shepard gave a small giggle. “Yes, ma’am.”

18.01.2026

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