Space engineering

Story by Kernog on SoFurry

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#2 of Commissions

Commission written for a patron who wishes to remain anonymous, yet still has my most sincere thanks for this story idea.

You know the old joke. In space, nobody hears you scream. Or moan, for that matters. Two mice brothers learn this lesson, as they scout the vast empty space for abandoned ships to salvage.


"Are you sure these are the correct coordinates?" Eric asked. The large mouse stretched his arms in boredom and turned his head towards his brother's seat. Matty looked back at him.

"Yes, the computer actually registered the energy signature. We are almost there. Thirty minutes until arrival," the chubbier sibling replied, in a tone which did not sound as assured as his statement. Eric yawned. Even if his younger brother lacked confidence in him, he was never wrong in his calculations, whether it was spatial coordinates or accounting. Nevertheless, space travel was always a long and uneventful business, especially in the middle of the Frontier, where the space stations and the colonies were spread light years apart.

The Terran Government of Civilized Space and Colonies, or TerGov for short, launched several military and scientific expeditions in these uncharted territories, for dozens of years. The collective effort resulted in a disappointingly low number of new colonies, and in a disappointingly high number of lost spacecrafts. However, every nebula cloud had its silver lining, and the two brothers had secured a steady source of income as engineers. They would scout the Frontier for such abandoned ships, and either tow it to the nearest station, sell its position to TerGov military, or simply take it apart and sell the scraps at the highest bidder. Either way made their bank account fill at a steady pace. The only drawback was that this activity implied days-long flights in a cramped spaceship. There was only so much holo-games to play, and also so much kinky things to do with one's brother. It never went all the way into a fully-fledged relationship, nor did they 'cover all the bases', but you could not stuck two guys together in a small space for weeks, and expect that nothing would happen, especially if both of them fill the other's criteria: Matty has a fixation on big, burly, confidant-looking guys, while Eric was fond of thicker, quiet boys. And despite being no slouch in the department, Matty was hung like a horse compared to him. If only he was more assertive... But this shyness was part of his charm too.

An alarm cut Eric's daydream short. The ship has reached its destination.

"We've arrived. Shutting down light-wave reactor, going back to manual control," Matty informed his older relative. On the camera feed, the murky sea of blue-white of faster-than-light travel was replaced with outer space scenery. No other aster in sight than a blue sun, and a hunk of metal which floated silently a few K-kms in front of them. Eric locked the derelict spacecraft on the sensors. "This is a Pascal class," he muttered. Pascal class ships were large scientific ships, usually commissioned for big experiments or long surveys. "I've got its signature," Matty announced. "It's the... Endium?" "Something wrong?" Eric asked. "She has been listed as MIA, but at the other end of the Frontier." the younger mouse explained. "I have a bad feeling about this." "And so do I," the elder brother agreed. "Let's just register her position, and then..." The communication link suddenly stirred to life, stopping Eric's initial plan in its tracks: "Bzzt! Bzzz... Assistance! Requi... Bzzz..." Matty looked at his computer, then his brother, visibly unnerved. "It's... Coming from the Endium," he said after a long pause.

Eric and Matty left the decompression chamber and entered the ship. "The power is on..." Matty remarked. "There's not even a single light down." "How long did you say this ship was reported missing?" Eric asked. "Twelve years. Even with survival rations and water purifier spare parts, nobody would be able to last that long." his sibling answered. Still anxious, the smaller rodent looked around him, and did not notice that his brother was getting ahead of him. Eric walked down the corridor of the ship and, as he passed an airlock... SLAM! Without warning, the airlock closed shut behind him, startling the usually impassive Eric. "Crap. Matty?" Eric called out, but no one answered on the other side. "Matty? MATTY?" "Grrooowl..."_something_answered. Eric's ancestral instincts woke up as soon as he heard this menacing snarl. His eyes and ears scanned his environment, while he pulled out his welding gun from his holster. He kept moving forward to look for a way back, remaining on his guard all the while. Something was moving near him. Heavy footsteps. Something grating on a metallic surface. Where was it? Eric heard the sound of metal under his footsteps. He looked down and saw that he was stepping on a grate. Behind the grate, a pair of glowing eyes glared at him from the floor vent. Something large busted through the floor, sending everything flying, including Eric. The mouse lifted his weapon, but the beast was already on him. It was massive, and his skin had an inhuman coloration. This was the last thing that Eric could process before a giant hand slapped his body and knocked him out.

Waking up after losing consciousness was never a pleasure. Eric opened his eyes, a feet which seemed to take a disconcerting amount of effort and time. He was in a small room of the ship, with no sign of his aggressor. He was standing in front of some kind of console. Realizing that he woke up standing, he tried to move and felt his limbs were trapped in something solid. Eric looked around. He was suspended in a large metallic frame, with shackles trapping his forearms and his calves in a spread position. And to top it off, he was naked, his toned gray body exposed to the world. "Welcome, subject 16," a robotic voice said through the room's speakers. On the console, a blue line fluctuated with the speaker's words, giving it a somewhat limited incarnation. "Wh-" "Subject 16 record updated with citizen ID database. Eric Attom, twenty-five, graduate of Cyr Military Engineering School. Engineer. Brother of subject 17. Matty Attom, twenty-two, gra..." "Okay, timeout!" Eric shouted suddenly. "What's this crap about! Where are we?" "Gametes Extraction Room, TSC Mato, System..." the voice began to list. Answering a question so literally meant that this was obviously an AI speaking. "We are not on the Endium?" the captured mouse interrupted the computerized voice. "No," the computer admitted dryly. "I borrowed the Endium's signature in order to conceal the Mato's identity, conforming to the mission parameters." "What mission?" a confused Eric demanded. "Credence level: research assistant. Disclosing relevant entries on need-to-know basis," the lifeless voice reacted. "Nature: genetic engineering. Objective: development of enhanced specimen for specialized usages, such as: military, long duration flights, hazardous maintenance. Status: incomplete. Reserve of gametes depleted due to collision incident 316706170432. Extraction of gametes from the Mato's crew, subjects 1 to 15, ended in failure, due to: genetic defects in products, and death of subjects." "Wh- You mean you... You killed them?" Eric stuttered, suddenly realizing the precarious situation he was in. "Death by exhaustion. Twelve years of mostly continuous extraction had broken their organic bodies. Thus, I devised a three steps plan. Step one: emitting a limited broadcast signal to attract a small-sized recovery team. Step two: commandeering rescue ship and crew. Step three: navigating to closest station and updating mission parameters." "Th-This is nonsense!" the mouse realized. "Commencing gamete extracting of Subject 16 for sampling. Opening camera feed."

An image propped to life on the monitor in front of Eric while the red dot of a camera lit up on top of the screen. He could see a full front-view of his naked body, like a mirror. And he could also see the collection of tubes and other implements of various shapes, waiting orders under his vulnerable shape. "Wait, what do you mean by gamete extracting?!" the large mouse shouted at the AI. The only answer was a pair of soft rolls which pressed on each side of his maleness and began to roll back and forth, massaging it. After that, a brush began to pass and rotate on his scrotum making him jump in surprise. "Ah! Crap..." Eric winced as his penis responded to the stimulation. "Stop this right now, you... Oh!" What stopped Eric in his protests was a hose squirting an oily substance on his ass. "Don't you dare!" he threatened, but the machine dared, and went even further, the thin tip of the hose poking inside his anus and delivery a half-glass worth of lube directly in his insides. The feeling of the warm liquid coating his backdoor helped the rolls and the brush in getting the rodent's cock to full mast. It was a thick, uncut cock, now twitching and pearling pre from the various stimuli. "F-Fuck," Eric could only say, while the rolls focused on the crown of his glans. "Preparing electric and cerebral wavelength stimulation," the computer announced coldly. Following this statement, mechanical arms applied patches over Eric's temples and back of the neck, a pair of rings around his ball-sack and the base of his cock, and finally a pair of pliers on his nipples, which made him wince. "Starting cerebral activity surveillance," the immaterial voice stated. "I'll break you apart piece by piece you..." the male mouse began, when a strong electrical current immediately coursed into his body, through the electrode setup. "Augh!" Eric cried out, as he jerked his body in pain. The electricity made a mess of his thoughts, punishing each one which the program deemed wrong. "I need to get out of-BZZZT! Urg! This is so wro-BZZZT-_OOONG! Ah... Help, somb-_BBZZZ_yyy!" While the machine set up the next step of its nefarious treatment, Eric's thoughts went to his brother. "M-Matty, I-_zzztzzztzzt" Eric gasped loudly as the behavior of the electrodes changed, and were sending weaker, faster-paced stimulation in order to reward him and encourage more 'positive thoughts'. "I-I hope he got out of this he-BZZZT Nnng! Or else he's gonna end up like me _zzztzzztzzzt_Oh! oooh..."

By now, his body was a quivering mess; his maleness was hard as a rock, and trembling with each electrical stimulation. Distracted by his ongoing reeducation, Eric did not notice the latex-lined tube approaching his crotch from the front, and the large rubber phallus sliding towards his anus. In the meantime, the AI made an additional announcement, to a non-existent audience: "Sample recovery one commencing. Milker parameters: smooth model size 3, program 1; sex-toy parameter: smooth model, length 3, thickness 2, flexibility 2" With perfect synchronicity, the dildo spread Eric's sphincter and buried itself in his lube-coated orifice, while the milker advanced on his penis and formed a vacuum-seal around it, the rubbery insides tightening on the sensitive flesh. With the cold effectiveness that only a computer could have, Eric was being worked from both sides. At first, the mouse was in discomfort, he winced and grunted. But the stimulation, coupled with additional electric encouragements, had him moan loudly in a mere couple of minutes. The sexual implements picked up the pace mercilessly, until they breached Eric's mental barrier. Howling his pleasure, he jerked his hips back and forth while the milker recovered the first of potentially many samples. After a few seconds came the results: "Sample analysis. Sperm quality: 98%. Genome compatibility: 80%. Results satisfying. Production line restart." "Aaah... Uuuh... God..." Eric panted, but before he could say more, the machines pulled out, and were about to be replaced by another set when suddenly a VR helmet was attached on his head. In pitch darkness, the engineer heard the AI directly in his ears through the helmet speaker : "Sample two recovery commencing. VR simulation commencing."

The black background was suddenly replaced by a gorgeous-looking tropical resort. Eric was standing there, in front of his brother; both of them were naked. Matty looked so cute (zzztzzztzzzt), with his chubby tummy and his big fat cock (zzztzzztzzzt), which always made him flustered, and even a little envious, albeit he never admitted this to his younger sibling. The virtual Matty dropped on his knees and took Eric's dick in his mouth, curling his tongue around his elder brother's glans. "Eric... Slrp..." "Oh fuck... This is not real (BZZZZZ) Urg! Ah... M-Matty, your tongue feels so goo-zzzt-oood." In the real world, the machine kept milking Eric steadily with a milker designed like a mouth, complete with moving tongue-like implement rolling under his foreskin, where it felt the best. The program adapted its rhythm to the simulation, merely teasing him when Eric was teased, going all the down in a rough manner when the big mouse's lust overtook him and, holding him tight inside the simulation, face-fucked him like a bull in rut. It did not take long for the machine to coax a second orgasm from him. While the AI prepared a third setup for Eric, it began to work on the next steps to ensure the success of the project. Subject 16 was well on his way to become a productive assistant; now, it was time to take care of subject 17...

"Come on, open!" Matty begged. It was his tenth try to open the big blast door which was blocking his way. He has been cut off from his brother for two hours, and left to wander inside the abandoned ship. Someone seemed to toy with the small mouse. Open doors suddenly shut and locked themselves as he was about to go through, while others which seemed definitely condemned opened suddenly after some time. The chubby rodent ended up completely disoriented, and so nervous that every ambient noise felt like a threat. Once again, as Matty was about to give up and turn around, the door opened by itself. It was a small room, padded entirely with a soft white mattress, and well-lit by a spotlight dome fixed on the ceiling. The red light of a terminal screen blinked slowly at the other end of the room. Keeping his nerves in check, Matty walked in the room in order to inspect the terminal. He tapped the screen, and the word 'WELCOME' appeared on it. "What the heck is this room," Matty wondered aloud. "Containment cell number 3," a robotic voice answered, making Matty squeal in fear. The engineer turned around, only to see the door slide shut and the electromagnetic lock turning on. "Welcome, subject 17."

One hour passed; then two, then three. Nothing happened, except that the terminal screen was now displaying his bio-metrics, along with an ominous 'Status: pending'. Matty eventually dozed off, until hunger woke him up. The mouse adjusted his glasses and checked the time: six hours had passed until his capture. His thoughts went to his brother. Knowing him, he must have escaped from this ship and went for help in order to rescue his not-as-cool brother. Footsteps approached and Matty tensed up. It was either a rescue party or, more likely, his captors. Maybe he could talk things through with them? Something was off, though, as it was not the 'clank' of boots, but instead the shuffling of barefoot walking, with one of the footsteps sounding massive. After what felt like an eternity, the door to the cell opened and left in the newcomers.

A hulking brute, of the likes that Matty had never seen before, came in first. He was so high and large that he had to contort himself through the opening. His skin had a sick-looking gray-green coloration, and his body was difformed, with oversized muscles pulsating with every move. His head was humanoid, yet it did not look like anything in specific, like a mix-and-match of different species. His limbs were thick, with his claw hands looking big enough to trap Matty's head in it and squeeze it like a lemon. But what got the most attention from Matty was the lump of flesh dangling between the legs of the mysterious creature. It already looked as big and thick as his brother's in this resting state, and the mouse's mind briefly wondered how big it would become, once stimulated. The monster growled softly at Matty, who stepped back against the wall of his cell. "What are you?" was the only thing he could ask. "Our new friend," Eric answered, as he followed the beast into Matty's cell.

Matty's face lightened up. His brother was coming to save him! And it looks like he had tamed this strange creature somehow! And... And... "Eric, why are you naked?" the smaller mouse inquired. His big brother did not answer. Instead, he walked to Matty, hugged him and began to kiss him lustfully. "Ah... Not now, Eric. We need to get out of here. Mmf..." a surprised Matty complained. "Once again, welcome subject 17," the voice from earlier rose from somewhere in the room. "Ah... Who are you?" Matty wondered. "Eric?" "Let it speak, you silly," the older brother chastised him softly. His big arms pulled the smaller mouse up, forcing him on his toes, and he began to french-kiss Matty passionately to quiet it down his sibling. "Mmf." Matty moaned, eyes half-closed behind his glasses. "I am the artificial intelligence of the Mato. As the brother of subject 16, you will contribute to my genetic engineering experiment." "Mmm! Genetic?" Matty asked while trying to get his mouth away from Eric's. "He wants us to cum for him," the latter announced happily. "Oh, Matty! He is going to make us so happy. No more spending our life in this miserable ship, for this dull job!" "S-stop, Eric. You are out of your mind!" Matty protested. "Snap out of it!" "Subject 16, make subject 17 compliant, by any means necessary," the AI ordered. "Prototype E-1 is at your disposal." "My pleasure," Eric agreed. "E1, help me get my brother out of these clothes. He will not need them anymore."

The creature growled, and the brainwashed pair teamed up against Matty. Eric unlocked the various protective shell parts of his cadet's suit, while the brute ripped the textile parts away with his huge hands. They reduced eventually a struggling and sobbing Matty to his pair of boots. "Hold him down while I take off his shoes," Eric ordered, and the creature pinned Matty on his back, his heavy scrotum mere inches from his muzzle. "You will like this," the muscled mouse assured his little brother, while he played with the soles of the latter's feet. "I don't," Matty protested. "Eric, pl-" "Sit on him," Eric said dryly. And Matty was instantly smothered by the massive scrotum. "Mmmf!" the chubby male winced, as the only thing that passed through his nose was the heavy musk of E-1. He tried to push up with his arms, and his right leg was flailing the air almost comically while the left was squirming in Eric's arms. "Do not let him breathe until you feel his tongue!" Eric requested of his minion, in between two licks of his brother left foot. He said it loud enough that Matty could hear it too, and this earned the brainwashed rodent a loud "MMH???" from the latter. A dozen seconds passed until, finally, small licking sounds could be heard. E-1 grunted, and moved his mass so that he would 'merely' teabag Matty, still mashing his musky testicles against the prisoner's muzzle.

In the meantime, Eric crawled towards his brother's crotch, his eyes on the big fat sausage waiting to be used and abused. "I cannot wait to feel your cock inside of me, brother. All the way inside" he gloated as he began to worship the object of his affection, massaging it and taking it in his mouth. "Mmmh... Ericmmm. This is-mmm," Matty moaned. He could feel his penis growing rapidly against this brother's tongue. And more worryingly, the green monster's maleness was also growing up to worrying proportions. It began to whine, like a dog wanting a treat. "No, we're doing it on _my_terms. Use his mouth!" Eric demanded of him. Yellow eyes towering up above looked at Matty struggling under him, Slowly, he positioned himself so that the head of his penis was lined up with the younger brother's mouth. Understanding what it wanted to do, Matty desperately kept his mouth closed until Eric, amused by the scene, pinched both of his nipples hard. E-1 did not miss the chance and buried into Matty's throat as soon as he could. "Aaahmmmrrrg! Grk!" Matty gagged. The creature's penis was progressing down his throat, and then his esophagus. Matty was flaying and punching, but the monster merely took both of his wrists in one hand, while using the other as leverage. "Geerrrkkk! Hpppp! Hkkk!" Matty gargled, but Eric was busy lining up his ass with Matty's erect penis and slowly letting himself fall over it. "Ooh, fuuuck..." Eric moaned lustfully. "Mrg... Gerrrkkk. Mmmg!" the chubby mouse replied, among various choking and gagging noises.

For long, long minutes, a grotesque show took place: a small, chubby mouse was face-fucked by an over-sized monstrosity, while his brother slapped his ass up and down his cock, occasionally pinching his nipples, in order to torment him some more. Eventually, Matty's moans picked up in intensity, and his body began to shudder. "Oh, yes! Come on, brother, fill me! Fill meee!" Eric shouted ecstatically. "Mmmrrrrkkk!" was the only thing the younger brother could say while his dick shot several loads inside Eric's body. "Oh yes, that's it! So warm! I'm gonna cum too..." he grunted. But E-1 came before him. With a howl, he gave a few final pumps in Matty's gullet, before unleashing a flood of cum down the mouse's stomach. To E-1's triumphant roar succeeded Matty's panicked noises as he was half-drowned in sperm. "Brrrk! Mmmggl! Gggl!" Eric felt the flow of sperm run down into his brother's belly, and this turned him on immensely. He did not waste time cumming over his brother's fur, spraying it in white all the way to the chest.

Eric rolled on the side and looked at his brother. Poor Matty's face was a mess of saliva and sperm, and his broken glasses had fallen on the floor. E-1 he pulled out from his victim, still hard and horny. He stood up, pulling the mouse by the wrists, before pressing him face against the wall, where he ran his massive tool between Matty's butt-cheeks, coating his crack in fluids. He was so big that Matty's feet did not touch the ground anymore, and tried to find some support around E1's massive calves. "Ah... Uh... No..." Matty sobbed, as a second, even more violating rape was to come in a matter of seconds. "More." Eric said. He slipped between Matty and the wall and put his younger brother's dick in his mouth once more. Matty's body shuddered as his brother forced his sensitive dick to get hard again by sucking on it like a vacuum cleaner: "Aah... Ah!" "'Ah 'ant 'ooore!" Eric repeated, with Matty's cock in his mouth. This distracted him long enough for E-1 to push his maleness against Matty's sphincter, putting an enormous pressure on the ring of muscles, which ultimately resulted in the monster's cock popping inside the mouse. "Aah! Fuuuck!" Matty howled from the sudden intrusion. "Mmm! Gggmm!" was the only comment escaping Eric's hips, accompanied by his loud sucking sounds, E-1's growls, and the various slaps_and _plofs of the green giant's pelvis slapping against Matty's butt. The massive cock beat up Matty's prostate literally, and pre ran down from the corner of Eric's lips like water from a leaking faucet. E-1 eventually bottomed out inside of his trembling victim, imprinting the sibling's belly with the bulge of his cock. "T-too much. Too. T-too. Agh..." Matty kept moaning until he tensed up once more and fed his brother with a second dose of sperm. "Aaah... Again. Cumming ag-aaah..." Despite Matty's climax making him squeeze on the disproportioned cock like a vice, E-1 kept pounding the poor mouse's ass for several minutes, until he fired his second round, in the same quantity and intensity than the first. The flow of cum was so large and strong that some of it flew out of the mouth of half-comatose Matty. Eric licked his chops and asked to nobody in the room in particular: "Again?" "No. No moar. Thish... Gonna break... " Matty tried to plead. But E-1 had already began to put him into another position for round three.

The sensors of the TSC Mato warned the ship's AI that New Gusan station was finally at reach. The last few weeks had marked a steep progress in his mission. Thanks to the contributions of subjects 16 and 17, a first batch of viable super-soldiers had been grown and was now ready to be used. Unlike prototype E-1, these could be mass-produced, and directly controlled by the AI through their brain implants. However, a conundrum had the computer preoccupied. If TerGov knew what had transpired on the Mato, they would certainly deactivate the AI or destroy the ship. This would put the mission and the subjects' safety at risk. He eventually decided that he would 'commandeer' New Gusan and its population with his current manpower. This will also allow the recovering of a fresh batch of subjects to experiment upon, killing two birds with one stone.

There was still time until the Mato's arrival, so the computer took the opportunity to make one last check-up on his two subjects. They were in the milking room, hooked up to their milking machines as usual. It checked the contents of the VR program which ran through their helmets. Having more telemetry to study was never a bad thing. Subject 17, 'Matty', was in the middle of a gang-rape simulation. A classic 'space pirates kidnapping' scenario, which subject 6 loved so much, albeit 17 seemed to have made the pirate crew clones of E-1. The AI cautiously verified that the current cum enema that Matty was currently receiving would not endanger his health, before checking up on Eric. Subject 16 had chosen to spend his session in an orient-style bathhouse, where he was tended to by a harem of Mattys, who worshiped his body and his cock. One of the Mattys was straddling Eric's face and was vigorously pumping his hips against his muzzle, while having another played with his gaping ass, pulling his thick penis in and out. All of these 'attentions' were faithfully reproduced by the machinery of the milking room. With the synchronicity of a clock, the two brothers came at the same time, giving the AI another sample to use, while they cried out in joy, asking for more: "Mmm! Mooore! Fuck meee!" "Ooh, Matty! Put this fat cock in me again... Hurryyy..."