Zero-G Pressure with the Ship’s Plumber

The dull silver compression fitting sat there like a sealed wound, beaded with fat drops of condensation that caught the red emergency glow and turned each one into a tiny pulsing coal. The metal threads still held the heat from Harvey’s wrench; I could almost feel the residual warmth radiating off the spiral grooves, a faint animal breath against the cold recycled air. One slow drip gathered at the lowest thread, stretched, trembled, then let go and floated free in the micro-g, a perfect sphere of coolant-slick water drifting past my cheek.

I watched it. I watched nothing else for three full breaths. Then the lens pulled back.

His knuckles filled the next frame—grease ground so deep into the creases they looked tattooed, the skin split and shiny at the joints where the wrench had slipped an hour ago. The narrow access crawlspace forced us shoulder to shoulder, hip to hip; every time he twisted the fitting another quarter-turn my thigh dragged along his, fabric whispering, heat blooming through the thin suit liners. Ozone and skin and the sweet chemical stink of leaking coolant thickened the air until it felt chewable. The ship’s low thrum vibrated up through the bulkhead straight into my cunt.

We had been in here too long. Years of professional distance, of clipped status reports and carefully timed bunk rotations, had boiled down to this: two bodies jammed into a maintenance bay the size of a coffin while the rest of the crew slept in stasis and the life-support plumbing threatened to kill us both. I was supposed to be the precision instrument, the mission specialist who never powered down. Instead I was counting the individual hairs on the back of his wrist and imagining how the grease would taste if I dragged my tongue across it.

“Pressure’s climbing,” he said, voice flat, professional. The words brushed my ear. “Standing by for input.”

Something low in my belly clenched so hard I almost doubled. Holding pressure. Standing by for input. The phrase landed like a switch thrown in a dark room. I felt my pulse jump into my throat, into the tips of my breasts, into the sudden slick heat between my legs. Years of checklists and command authority and never once letting the mind shut off—and here was the ship’s plumber, elbows deep in the arteries of the vessel, offering me the exact language of surrender without even knowing it.

I put my hand over his on the wrench. Not gently. I stopped the turn.

“Leave it,” I said. My voice came out low, scraped raw. “It’s holding enough.”

He went still. I felt the question in the sudden stillness of his muscles, the way his breath caught and then restarted slower. In the red light his eyes looked black. Sweat had glued a dark curl to his forehead; a drop ran down the side of his nose and hung there, trembling the same way the condensation had.

I kept my hand on his. Used it to turn him, just slightly, until his back met the curved bulkhead and my knees bracketed his hips in the tight space. Zero-g made every shift lazy and inevitable; our bodies drifted into full contact and stayed there, suit liners catching, the hard ridge of his cock already obvious against my thigh. The visual hit me first—the shape of him outlined by damp fabric, the way the material darkened where precome must already be seeping—and then the gut-punch of pure want rolled through me so hard my vision tunneled.

“Alison—”

“Quiet.” I said it the way I gave burn coordinates. Absolute. “You don’t speak unless I ask for a status report. Understand?”

A muscle jumped in his jaw. Then he nodded once, sharp. Obedient. The power of it flooded my mouth with saliva.

Stripping in a space the size of a coffin was not the clean thing it should have been. My elbow cracked against the bulkhead reaching for my own zipper and I hissed through my teeth; his knee caught mine and we both had to still, laughing breathlessly against each other’s mouths for a second before untangling. His suit liner snagged on a recessed handhold and he had to work it free with one hand while the other braced my hip so I wouldn’t drift into the exposed wiring behind us. Fabric peeled back in awkward stages, not shed skin so much as skin fought free of—an elbow here, a knee there, the whole slow indignity of undressing in a space that gave us nowhere to put our own limbs. It only made the air thicker. Every small failure of grace became another point of contact, another accidental drag of bare skin that neither of us apologized for. By the time we were both stripped the crawlspace felt smaller still, our discarded liners wedged into the corners of the bay, drifting faintly with each vibration of the hull.

The recycled air licked across my bare breasts; my nipples pulled tight enough to ache. His chest was mapped with old scars and newer bruises from the crawlspace, a smear of black grease still streaking one pec. I dragged my thumb through it, watched the dark streak transfer to my skin, then brought the thumb to my mouth and sucked. Metal. Salt. Him. My cunt throbbed in time with the ship’s failing pumps.

I dictated every centimeter.

“Hands on the handholds. Don’t move them.”

He locked his fingers around the recessed grips above his head. The position stretched his torso long, lifted his cock so it stood full and wet-tipped in the red gloom. I floated myself down until the head of him kissed the soaked folds of my pussy; the contact was electric, blunt, filthy. I held there, just the smear of him against me, and rolled my hips in tiny arcs so the head dragged through my wetness without sinking in. Every pass sent a raw jolt up my spine. I watched his stomach muscles jump. I watched the way his cock twitched and leaked a clear string that floated between us like another bead of condensation.

“You feel that?” I asked. “That’s me deciding. That’s the only input you’re getting.”

He swallowed. Nodded. His knuckles had gone white on the handholds.

I reached down and wrapped my fist around him, not gentle, and stroked once from root to tip, spreading my own slick over the hot skin. The vein along the underside pulsed against my palm. I wanted him inside me with a violence that felt almost like nausea, but I made myself wait. Made him wait. I guided the head back to my entrance and held it there, notched, stretching me just enough that the burn started and then stopped. My thighs shook. Sweat ran between my breasts and drifted free in glittering beads.

“Holding pressure,” I whispered, testing the words, letting them scrape out of me. “Standing by for input.”

His eyes flared. Something raw and hungry moved behind them—recognition, maybe, or just the same desperate isolation finally cracking open. He didn’t speak. Good. He waited like hardware.

I sank down another half-inch. The stretch bloomed hot and perfect; my walls fluttered around the intrusion and a broken sound tore out of my throat. Still not all the way. Still mine to give or withhold. I braced one hand on his chest, felt his heart hammering under the grease and muscle, and used the leverage to rock myself on just the head of him—shallow, filthy, deliberate. Every tiny thrust smeared more wetness down his shaft. The smell of sex cut through the coolant stink. My clit dragged against his pubic bone on every roll and bright white sparks started firing behind my eyes.

I could have dropped all the way. Could have taken every inch of him and fucked myself on him until the bay rang with the wet slap of it. Instead I hovered there, trembling on the edge of the threshold, full of the vicious pleasure of control. The diagnostic language still echoed in my skull. Holding pressure. Standing by. I wanted—needed—him to flip it, to seize the commands and run me like the mindless unit I secretly ached to be. But not yet. Not until I had wrung every last drop of this first phase out of both of us.

I leaned in until my mouth brushed his ear, until my nipples dragged across his chest and my cunt clenched greedily around the barest tip of him.

“Status,” I ordered, voice shaking with the effort of not impaling myself. “Report.”

His breath shuddered out hot against my neck. When he answered, the words came out rough, obedient, and edged with something that promised the inversion already gathering force.

“Ready for full insertion, Commander. Awaiting your command.”

The word command did something to me that the whole slow torture hadn’t managed—some final bolt sheared loose. I felt my own decision arrive, not as thought but as gravity, a pure animal now that overrode every careful calculation I’d been making. I let go.

I drove down onto him in one brutal slide, taking every inch until my cunt swallowed him root-deep and the blunt head punched against my cervix. The stretch was vicious, perfect, a hot splitting pressure that forced a raw groan out of my chest. My walls clamped hard around the sudden fullness; wet heat flooded out around his shaft and floated in lazy strings between us. I stayed buried, grinding my clit against the base of him in tight circles while the ship’s thrum vibrated straight up through his cock into my spine.

“Stay still,” I ordered, voice shredded. “You don’t thrust. You hold. I use you.”

His fingers whitened on the handholds. Sweat beaded across his chest and drifted free. I rode him slow at first—long, dragging pulls that let me feel every ridge and vein scraping my insides—then harder, slamming my hips down so the wet smack of skin on skin filled the crawlspace. Every descent sent a gut-clench of pure lust rolling through my belly; every lift left me aching empty until I impaled myself again. I watched the visual triggers without shame: the way his cock disappeared into me shiny and full, the grease smear on his pec darkening with my sweat, the flush climbing my own chest until my breasts looked bruised red in the emergency light. My nipples dragged across his skin on every stroke and the friction made them throb like separate heartbeats.

I controlled the angle, tipping my pelvis so he scraped that swollen front wall on every pass. Sparks detonated behind my eyes. I reached down and spread my folds with two fingers so my clit dragged raw against him; the extra pressure made my thighs shake violently. Precome and my own slick mixed and floated in glittering globules. The smell was filthy—cunt and coolant and the salt of his skin.

“Status,” I gasped, still dictating the rhythm, slamming down harder. “Report how it feels.”

“Tight. Hot. Soaking me. Pressure rising—” His voice cracked. “Commander—”

“Hold it. You come when I say.” I fucked myself on him faster, chasing the coil winding viciously low in my gut. The pleasure was animal, no poetry, just the wet clutch of my cunt working his cock like it was built for this and the bright white overload building behind my clit. I leaned in, bit the side of his neck hard enough to taste copper, and whispered the words that were already rewriting me: “Holding pressure. Standing by for input. You’re just the pipe. I’m the system running the cycle.”

Something in him shuddered. I felt his cock swell even thicker inside me, pulsing. I chased it—short, brutal grinds that mashed my clit and forced him against every sensitive inch. The orgasm hit like a systems failure: my whole body locked, cunt spasming in hard rhythmic pulls that milked him while I stayed fully seated, grinding through the waves. Wet heat gushed around him. I shook and kept moving through it, dragging every last spark out until my vision tunneled and my arms trembled on his chest. Only then did I give the order, voice wrecked: “Now. Fill it. Input now.”

He came with a broken sound, hips jerking once hard against my hold as thick pulses flooded me deep. I felt every jet, hot and copious, the overflow leaking out around his base and drifting in the micro-g. I stayed impaled, clenching around him through the aftershocks, owning the last twitches until he softened slightly inside me.

We floated there tangled, sticky, chests heaving. Sweat and come and coolant stink coated us. Our discarded liners drifted in the corners of the bay like shed skins. The red lights still blinked. His cock slipped free with a wet sound and a slow ooze of his release followed, cooling on my thighs. I kept one hand splayed on his chest, feeling his heart slam, while the other stayed between my legs, idly smearing the mess.

Neither of us spoke. The silence stretched, thick as the coolant stink, and I let it. I could feel him watching me in the red gloom, could feel the exact moment his breathing evened out and his gaze sharpened instead of softened. I didn’t look away. Some old animal part of me understood that looking away now would be its own kind of surrender, and I wasn’t ready to name what I was doing instead. The power still sat in my mouth like blood. My mind wouldn’t power down. It kept cataloguing, deciding, holding the checklist—pressure readings, seal integrity, the residual ache blooming low in my belly that had nothing to do with exhaustion and everything to do with wanting again, already, before the first want had even finished leaving me. I hated that part of my mind. I wanted the evacuation.

He didn’t move either, not for a long stretch of ship-thrum and slow-blinking red. His hand stayed on my hip, not asking. Testing. I felt his thumb shift, barely, tracing one small arc against my hipbone, and I let the silence answer for me by not pulling away. Something was building behind his eyes, patient as pressure behind a failing seal. I recognized it because I had worn the same look ten minutes ago. My clit still throbbed, unfinished in some deeper register that the first climax hadn’t touched. I felt the challenge pass between us without a word—an offer, a question, a held breath—and I let it sit there, unanswered, feeling my own need leak through every second I refused to break the quiet.

Harvey’s breathing slowed further. He released the handholds slowly, arms drifting. His hand tightened, just slightly, on my hip.

“Pressure’s still building,” he said quietly, voice different now—flat, practical, but with something colder underneath, something that had learned the shape of the game and decided to keep it, but reverse it. “You didn’t run a full cycle. Something’s still backed up in the line.”

I shivered hard. Not his exact phrase—his own, deliberately not-hers, and somehow that was worse, that he’d taken the diagnostic logic and made it his language instead of an echo of mine. My nipples tightened again. I opened my mouth to reclaim control and nothing came out except a thin sound.

He moved.

In one decisive shift he spun us, using the handholds and my own body mass, until my back met the curved bulkhead and my wrists were pinned above my head in one of his big hands. The position stretched me open, breasts lifted, legs forced wide by his hips slotting between them. His half-hard cock dragged through the mess on my thighs and started stiffening again against my folds. Zero-g made the manhandling effortless and absolute; I floated exactly where he put me.

“Unit Alison,” he said, voice stripped of everything but command. “Power down higher functions. You do not speak except status responses. You do not move unless positioned. Confirm.”

The kink unlocked fully, visceral and total. My mind went white with relief so sharp it felt like coming again. “Confirmed,” I whispered, already slipping into the blank.

“Louder. Machine voice.”

“Confirmed. Awaiting input.”

He nodded once, sharp, like he’d just seated a fitting. His right hand kept my wrists locked above my head, forearm braced along the bulkhead so the grip held without effort even as his hips shifted. His left hand dragged down my body—pinching each nipple hard enough to make me jerk, testing the give of my breasts, sliding two fingers straight into my flooded cunt without preamble and curling them to stroke that swollen spot until my hips tried to buck. He hooked one leg over mine, locking my thighs still between his own, using the grip of his knees for leverage against the drift instead of any weight he didn’t have.

“Responsive. Good seal. Holding pressure.” He scissored his fingers, stretched me, then pulled them free shiny and shoved them into my mouth, his wrist-pinning hand never once loosening. “Clean the sensors.”

I sucked obediently, tasting us, metal, salt. No thought left—just the wet heat of his fingers on my tongue and the empty ache between my legs. He drew his hand back from my mouth and used it instead to guide himself, pressing the blunt head to my entrance before replacing his fingers with his cock in one long thrust that seated him to the root again. The sudden fullness punched a raw sound out of me; his left hand came up fast to cover my mouth, palm cupped loose enough to let air through, tight enough to swallow sound.

“No output except status. Quiet running.” He eased his palm back a fraction, just enough that words could escape past it, keeping the pressure there like a lid he could shut again at will. “Status.”

“Full,” I managed, the word half-muffled against his skin. “Overload building. Please—”

“No please. Machines don’t beg. Report only.” He pressed his palm flush again, cutting the last of it off, and shifted angle, pounding that front wall until white fire sheeted across my vision. “You’re a receptacle. A pump. You take input and cycle it. Nothing else.”

He fucked me like he was seating pipe—deep, relentless, measured strokes that bottomed out every time and forced the air from my lungs against his hand. Only when he finally released my wrists and lifted his palm from my mouth entirely did his hands go to my thighs, hooking my knees one at a time over the crooks of his elbows, the movement unhurried in the drifting gravity, so I was folded open, completely available hardware, my arms free now to grip the handholds myself. Every thrust dragged across my clit; every withdrawal left me clenching on nothing before he slammed back in. The wet sounds were shameless, filthy, echoing off the bulkheads. Sweat flew in beads. My cunt made obscene sucking noises around him.

“Status,” he ordered.

“Full. Overload building. Please—”

“No please. Machines don’t beg. Report only.” He shifted angle again, pounding that front wall until white fire sheeted across my vision. “You’re a receptacle. A pump. You take input and cycle it. Nothing else.”

I shattered on the next thrust—cunt locking down in hard spasms, gushing around him while he kept driving through it without slowing. The orgasm was pure mechanical ecstasy, no narrative, just system flush and the gut-level flood of pleasure with my mind blessedly offline. He didn’t stop. He fucked me straight through it into the next climb, relentless, using my body exactly like the obedient unit I craved. When I started shaking too hard he eased out, unhooked my legs from his elbows, and turned me with both hands on my hips—a slow, deliberate rotation in the drifting air, my shoulder skimming the bulkhead, until I faced the curved metal and he guided my knees to a lower handhold, folding me forward, presented. He pushed back in from behind, deeper this time, the new angle opening me in a way that ripped a raw sound straight from my chest. One hand fisted in my hair to keep my cheek pressed to the cold metal; the other reached around and rubbed my clit in tight, merciless circles timed to his thrusts.

“Second cycle. Hold pressure until I say dump.”

I came again almost immediately, longer, body jerking in the grip of his hold while he kept the rhythm brutal and even. Slick poured down my thighs and floated. My mind was a blank screen—only sensation: the bruise of his fingers in my hair, the stretch of him buried and grinding, the electric overload sparking from clit to spine. He talked me through it in flat operational language the whole time—seating depth, pressure readings, input rate—until the words themselves became the switch that kept me powered in the machine headspace.

He didn’t slow. He pulled my hips back to meet him harder, angled deeper still, chasing something in himself now as much as in me. “Third cycle,” he said, voice gone rough at the edges despite the flat cadence he tried to hold. “Building to full dump. Hold it. Hold it—” His hand left my clit only to grip my hip, dragging me back onto him with a force that punched the air from my lungs, over and over, no mercy in the rhythm now, just relentless depth and the slick obscene noise of our bodies. I felt the third peak building differently than the others—slower to gather, wider, spreading up through my spine and out along my arms until even my fingers curled uselessly against the handhold. He returned his hand to my clit and pressed hard, circling without rhythm now, just insistence, and the combination of the deep merciless drive and the raw friction up front dragged me apart in slow motion. I heard myself sobbing before I registered making the sound, a broken, wordless static that had no shape left as language. My whole body seized around him, cunt fluttering in long helpless pulls, the pleasure so total it stopped being pleasure and became something closer to erasure. He drove through every spasm without easing off, forcing the orgasm to keep cresting on itself, refusing to let it end cleanly, until I was nothing but sensation strung along his cock, mindless, gone.

Only then did he finally let himself follow, seating deep and flooding me again with thick pulses, grinding through his own release like he was locking a final fitting. Even then he didn’t soften the hold. He stayed buried, one hand still proprietary on my hip, monitoring.

In the humming quiet after, I remained locked in the final position he left me—limbs still obediently open, cheek to bulkhead, breath coming in short machine-like pulls—while the aftershocks kept firing through my abdomen like residual current. I catalogued the precise physical inventory: the throb where he had pinned my wrists, the cooling slick of our mixed come coating my thighs and drifting in lazy strings, the deep satisfying ache inside where he had used me hard, the way my mind felt blessedly evacuated, a blank screen waiting for the next boot command. No decisions. No checklists. Just the rare visceral peace of pure function completed.

Harvey withdrew slowly, his cock slipping free, and floated close behind me, his breath stirring the hair at my temple, one hand resting on the small of my back as if monitoring an instrument panel. I registered the contact not as comfort but as continued ownership. Around us, drifting in the red emergency glow, small spheres of sweat and precome and coolant and come hung suspended, catching the light like a slow constellation of everything we’d spent. The ship’s endless black pressed against the hull. The emergency lights blinked on in their slow red cycle. Somewhere a coolant line ticked as pressure equalized. I drifted in it, empty and used and perfectly powered down, the plumber’s hand the only input left on the system.