How Long Can I Last On My Fucking Machine
22-year-old Bianca tests how long she can last riding her heavy-duty fucking machine.
Bianca was twenty-two, living alone in her small apartment, and the heavy-duty fucking machine sat in the middle of her bedroom like a dark promise she had finally decided to keep. She had bought it only a few weeks ago—one of those solid, motorized frames you strapped a dildo onto so it would thrust for you without mercy—and she had used it a few times already, short sessions that left her shaky and satisfied. Tonight was different. Curiosity had been chewing at her all day. How long could she actually last? Not a quick ride to get off, but a real test: keep the thing pounding into her until her body simply gave out.
She stripped completely, tossing her clothes onto the chair by the window. Naked, she knelt on the thick yoga mat she had laid out, then crawled forward onto all fours so her knees and palms sank into the soft surface. The machine’s padded supports cradled her hips and shoulders once she adjusted the straps, locking her in place without cutting off circulation. Her ass was raised, thighs spread just enough, pussy already starting to feel the cool air. In front of her the thick, bigger-than-average dildo jutted backward from the thrusting arm—veiny silicone, long and girthy, the kind of cock that stretched her every time she took it. She reached back, coated it generously with lube, watching the clear gel shine under the bedside lamp. Then she lined herself up, guided the blunt head between her slick lips, and pushed back until the first few inches popped inside.
“Fuck,” she whispered, breath catching. The stretch was immediate, that full, almost too-much pressure she craved. She settled deeper, letting more of the thick shaft sink into her until her pussy lips kissed the base. One hand fumbled for the remote. She thumbed the power button and set it to a steady, medium pace—nothing insane yet, just a relentless in-and-out rhythm that would let her feel every inch.
The motor hummed to life. The dildo drove forward, burying itself to the hilt in one smooth mechanical stroke, then withdrew almost all the way before slamming home again. Bianca’s mouth fell open. “Oh god… how long can I last on this fucking machine?” she said aloud, voice already rough. The question hung in the quiet bedroom as the thrusts kept coming—hard, deep, perfectly timed. Each plunge stretched her walls wide, the head nudging against her cervix with a dull, delicious ache. Her tits swayed beneath her. She locked her elbows and stared at the wall, feeling the machine fuck her without pause or mercy.
It felt incredible right away. The lube made everything glide, wet sounds filling the room as the thick cock pistoned in and out. Bianca rocked with it at first, testing the straps, letting her hips meet every thrust. Heat bloomed low in her belly. Her clit throbbed, neglected for now, but the sheer fullness was enough to make her moan. She wondered, genuinely, how long her body could take this. An hour? Two? Until she was a trembling mess who couldn’t even crawl away? The thought alone made her pussy clench hard around the invading shaft.
Minutes stretched. The steady pace never wavered. Thrust. Withdraw. Thrust. Deep enough that she felt it in her stomach, hard enough that her whole frame jolted forward against the supports with every impact. Sweat started to bead along her spine. She shifted her knees wider, arching her back so the dildo could reach even deeper. “That’s it… keep fucking me,” she muttered, half to herself, half to the machine. Her voice cracked on a particularly deep stroke. Interior heat coiled tighter. She could already feel the first sparks of real arousal building—nothing explosive yet, just a rising pressure that promised more.
Then the lube began to thin. She felt it first as a subtle change in friction. The gliding ease faded. In its place came the wetter, hotter slide of her own body taking over. Bianca’s pussy was dripping now, juices coating the thick dildo in thick, shiny strands every time it pulled out. The wet slap of skin on silicone grew louder, filthier. “Fuck yes,” she groaned, pushing her hips back instinctively to meet the next thrust. The machine didn’t care. It kept the same relentless rhythm, driving the bigger-than-average cock into her harder, deeper, stretching her open over and over while her natural slickness made every plunge feel more intense.
Her moans climbed. They started as soft grunts and turned into open-mouthed sounds that filled the bedroom. Each mechanical thrust forced air from her lungs. Her arms trembled. She dropped to her elbows, ass still high, and the new angle let the dildo drag against her front wall with every stroke. Pleasure spiked sharp and bright. Her hips moved on their own now, rocking back to take more, chasing the stretch even as it threatened to overwhelm her. The juices kept flowing—coating the shaft, dripping down onto the mat in small puddles, making the whole thing slicker and louder.
“How long… how fucking long can I last?” Bianca gasped between thrusts. Sweat ran between her breasts. Her thighs burned from holding the position. The machine showed no sign of slowing; the motor hummed steadily, pistoning that thick cock into her cunt with mechanical precision. Every deep drive punched a moan out of her. She could feel herself getting closer to some edge she hadn’t planned for yet—not climax exactly, but the point where the intensity would start to tip from pure pleasure into something almost too much to bear. Her walls fluttered and squeezed. The stretch never eased. The speed never dropped.
She gritted her teeth and pushed back harder, meeting the machine stroke for stroke. Her pussy made filthy wet sounds with every withdrawal, juices stretched into shiny strings before the next slam broke them. The dildo was fully coated now, glistening with her. Bianca’s mind spun with the question that had started all this. She wanted to know her limit. She wanted the machine to keep going until her arms gave out or her cunt was too sensitive or she simply couldn’t take another thrust. Right now she was nowhere near that point, but the building tension in her core told her the test had well and truly begun.
Her moans grew louder, rawer. She cursed under her breath, then louder, voice cracking as another deep plunge rocked her forward. Heat radiated from between her legs. Her clit ached for attention she refused to give it yet; this was about endurance, about lasting as long as possible under the constant, hard fucking. The straps held her steady even when her knees started to slip in the growing wetness on the mat. She adjusted, resettled, and the machine immediately rewarded her with another series of powerful thrusts that made her see white sparks behind her eyelids.
Bianca’s breath came in ragged pants. She could feel every ridge of the silicone dragging along her sensitive walls, every thick inch stuffing her full before pulling almost free and slamming home again. The relentless rhythm pushed her arousal higher with every passing minute. Her hips kept moving, instinctive little bucks and rolls that only made the stretch more intense. She was soaking, dripping, the dildo glistening and shiny with her juices as it pounded her without rest. The question kept circling: how long before her body gave out? How long before she couldn’t take another second of this perfect, mechanical fucking?
She didn’t know yet. All she knew was that the tension was climbing, her pussy was fluttering harder around the invading cock, and the night was still young. The machine hummed on, thrusting deep and hard, and Bianca stayed right there on all fours, locked in place, determined to find out exactly where her limit lived.
The first real orgasm slammed into her without warning. Bianca’s eyes flew wide as her pussy clenched down hard around the thick, thrusting dildo, walls rippling in violent waves that tried to milk the silicone cock even as the machine kept driving it deep. Her cry tore out raw and broken—“Fuck—oh fuck, I’m coming!”—and her whole body locked, then convulsed. Thighs quivered hard enough that the straps creaked. She dropped fully onto her elbows, forehead pressed to the yoga mat, fingers clawing at the edge where the mat met the rumpled sheet she’d dragged halfway off the bed earlier. She gripped that sheet tight, knuckles white, holding on while the oversized dildo never slowed. It slammed into her soaked pussy without pause, each merciless stroke punching straight through the climax and dragging another sharp spasm out of her.
Juices flooded out around the shaft, thick and hot, dripping down the veiny silicone in shiny rivulets that splattered onto the mat with every withdrawal. The wet sounds turned filthy and loud—slick, squelching plunges that filled the bedroom. Bianca’s hips jerked helplessly against the padded supports, trying to escape the intensity and chase it at the same time. The stretch never eased. The bigger-than-average cock kept burying itself to the hilt, the flared head battering her cervix on every deep stroke while her orgasm rolled on and on. She forced herself to stay open for it, breathing in ragged gasps, whispering broken encouragements to no one. “Keep going… don’t you fucking stop… I can take it…”
The first climax finally crested and left her shaking, but the machine’s rhythm was relentless. Medium pace, hard and deep, piston-perfect. Her oversensitive walls fluttered and fluttered around the invading thickness. Sweat slicked her spine and the undersides of her swinging tits. She could feel every ridge dragging along her front wall now that the lube was long gone and only her own slippery cum coated the dildo. The friction was hotter, more intense, almost too much—and she loved it. She rocked back to meet the next thrust on purpose, gasping when it bottomed out and sent a fresh jolt of pleasure-pain through her core.
The second orgasm built faster. Heat coiled tight and mean low in her belly. Bianca’s clit throbbed untouched, aching with every vibration that traveled through her stuffed cunt. She gritted her teeth, still gripping the sheet, and pushed her ass higher so the dildo could reach even deeper. “How long… how long can I fucking last…” The words came out cracked between moans. Her thighs trembled continuously now. The machine didn’t care about her questions. It simply fucked her, thick cock slamming home again and again while fresh juices welled up and dripped in long strings down the shaft.
When the second climax hit, it shattered her harder. Her body convulsed in full-body waves—shoulders shaking, arms nearly giving out, pussy pulsing so strongly she felt it in her teeth. A raw, open-mouthed cry ripped from her throat as she came, juices squirting in short bursts around the thrusting dildo. The wet slap grew louder, messier. She could hear her own cream being churned into foam. “Yes—fuck yes—don’t stop—” She forced her hips to stay put, forced herself to keep taking every merciless inch even while her vision whited out at the edges. The oversized silicone never paused. It drove through the orgasm, stretching her fluttering walls wide on every stroke, turning the climax into something that rolled and rolled instead of ending cleanly.
Bianca collapsed further onto the mat, cheek pressed to the damp fabric, still clutching the sheet like an anchor. Her thighs quivered so hard the whole machine frame rattled lightly. Sweat ran into her eyes. She blinked it away and laughed once, breathless and wild. The test was working. She was already a mess and the night was nowhere near over. The dildo kept pistoning—hard, deep, mechanical—coating itself thicker with her slick every time it pulled almost free and then slammed home again. She could feel the head nudging that deep, aching spot inside her on every thrust, and the pressure started building for a third climax almost immediately.
She didn’t touch her clit. This was pure endurance fucking, nothing but the relentless stretch and pound of the machine. Her pussy was swollen and hypersensitive now, every ridge of the silicone scraping fireworks along her walls. She rolled her hips in small, desperate circles, matching the rhythm as best she could while locked in the straps. “Harder… you can go harder…” she muttered, even though she knew the setting was already intense. The remote lay just out of easy reach. She left it. Medium was enough. Medium was destroying her beautifully.
The third orgasm crashed through her like a wave breaking on rocks. Bianca screamed—actual raw sound that scraped her throat—as her body convulsed again. Thighs shook violently. Her cunt clamped down in rhythmic spasms that milked the thrusting cock for all it was worth, more juices flooding out and dripping in heavy drops down the glistening shaft onto the soaked mat. She gripped the sheet harder, twisting the fabric in her fists, holding on while the machine fucked her straight through the peak without mercy. Each climax was more intense than the last; this one left her sobbing with pleasure, hips jerking, toes curling against the floor. The oversized dildo kept slamming into her soaked pussy, relentless, deep enough that she felt every impact in her lower belly.
She forced herself to stay right there and take it. No quitting. No reaching for the remote. The question that started everything still burned in her mind: how long could she last? Her arms trembled. Her knees slipped in the growing puddle of her own cream. She adjusted, resettled, and the machine immediately rewarded her with another series of powerful strokes that punched fresh moans out of her. The dildo was shiny and thick with her juices, wet sounds filthy and constant. Heat radiated from her core. Her clit pulsed in time with every thrust.
A fourth climax began coiling almost before the third fully faded. Bianca’s breath came in broken pants. She stared at the wall, eyes half-lidded, and whispered the only thing that made sense anymore. “Keep fucking me… I’m not done… I can last longer…” Her body was already wrecked—thighs quivering nonstop, pussy fluttering and dripping, sweat soaking the mat—but she stayed locked in place, ass raised, taking every hard and deep plunge. The machine hummed on, merciless, and she clenched around it on purpose, chasing the next shattering wave while her juices continued to coat and drip down the thrusting shaft. The tension refused to break completely. There was more left in her. She could feel it. The test was only getting started.
The fourth orgasm ripped through Bianca without mercy, her pussy seizing around the thick, pistoning dildo in violent, milking pulses that forced a ragged scream from her throat. “Fuck—oh fuck, again—” Her walls fluttered and clamped, juices squirting in hot bursts that splattered the mat and ran in glossy rivers down the veiny silicone. The machine never slowed. Medium pace, hard and deep, every stroke driving the bigger-than-average cock straight through her climax until her thighs shook so violently the padded supports creaked. She clutched the twisted sheet harder, forehead grinding into the soaked yoga mat, ass still forced high by the straps. Sweat poured off her in sheets now, dripping from her chin, her swinging tits, the hollow of her spine. The air reeked of sex and heat. Interior thought spun wild: How long? Twenty minutes? Thirty? She had lost track completely, only knew the relentless stretch and pound were rewriting her nerves.
She stayed locked in place on purpose. No reaching for the remote. The question that started the night still burned. Her cunt was swollen, hypersensitive, every ridge of the silicone dragging fireworks along her front wall. She rolled her hips in tiny, desperate circles, meeting the thrusts even as overstimulation made her whimper. “Keep going… don’t you dare stop… I can last…” The words cracked between moans. Fresh cream coated the shaft thicker, turning every wet slap into a filthy squelch that filled the bedroom. Her knees slipped again in the puddle; she adjusted, resettled, and the machine rewarded her with a series of deep bottoming-out strokes that punched the air from her lungs.
The fifth climax built viciously fast. Heat coiled mean and tight, her neglected clit throbbing in time with every mechanical jolt. Bianca’s arms trembled on the edge of collapse. She dropped fully onto her chest, cheek smeared against the damp mat, ass higher than ever so the dildo could batter that deep aching spot without mercy. “How long can I fucking last on this fucking machine?” she gasped aloud, voice raw. The answer was still coming. When the orgasm hit it shattered her harder than the last—full-body convulsions, toes curling hard against the floor, pussy pulsing in rhythmic waves that tried to push the thick cock out and failed. Juices flooded around it, dripping in heavy strings. She sobbed with pure pleasure, hips jerking helplessly against the straps while the machine fucked her straight through the peak, turning one climax into a rolling chain of smaller ones.
Minutes blurred. Sweat stung her eyes. Her thighs burned and quivered nonstop. The sixth orgasm crashed over her almost before the fifth faded, leaving her screaming into the mat, body glistening, pussy twitching and dripping. She forced herself to stay open, whispering broken encouragements—“That’s it… harder… I can take more…”—even though the setting never changed. The oversized dildo glistened completely with her slick now, shiny and thick, the wet sounds constant and filthy. Every withdrawal stretched long strands of cream before the next slam broke them. Her core felt molten. The stretch never eased. She could feel the head kissing her cervix on every deep drive, that dull delicious ache blooming into fresh sparks.
She lost count after that. Climaxes rolled into one another until they stopped feeling separate—just endless waves of clenching, squirting, shaking. Her arms finally gave out completely; she lay with her cheek mashed to the mat, only the straps and her raised hips keeping her in position. The machine hummed on, merciless, pistoning that bigger-than-average cock into her wrecked cunt without pause. Bianca’s mind floated somewhere between ecstasy and total overwhelm. Nearly forty-five minutes of continuous mechanical pounding. She felt it in her bones now—the absolute limit approaching like a cliff edge. Her pussy was raw and fluttering, every thrust almost too much, yet she still pushed back to meet them, chasing the final shattering.
“I’m… I’m almost there… how long…” Her voice was barely a whisper, cracked and spent. The pressure built one last time, heavier and hotter than anything before. Sweat ran in rivulets down her sides. Her tits were flattened against the mat, nipples dragging with every jolt. She gripped the sheet with the last of her strength and let go completely, arching as hard as the straps allowed.
The final explosive orgasm detonated deep inside her. Bianca’s entire body locked rigid, then convulsed in violent, full-body spasms. A raw, broken cry tore from her throat as her cunt clamped down in the hardest pulses yet, milking and rippling around the thrusting dildo while fresh juices squirted in long arcs. Her vision whited out. Thighs shook so hard the whole frame rattled. She came and came, wave after endless wave, until the intensity left her limp and gasping, lungs burning, every muscle twitching uselessly. The machine kept slamming into her for a few more merciless strokes, dragging extra shudders out of her oversensitive walls.
With the last shred of coordination she weakly fumbled for the remote, thumb sliding over the power button. The motor cut off mid-thrust. The thick dildo stayed buried to the hilt inside her twitching, fluttering pussy, stretching her open even in stillness. Bianca collapsed forward completely, straps catching some of her weight as she melted onto the soaked mat in exhausted satisfaction. Her body glistened everywhere—sweat, slick, the shiny mess coating her inner thighs and the mat beneath her. Breath heaved in and out. Aftershocks rippled through her cunt around the still-buried cock. She floated in the aftermath, utterly wrecked, the test finally over.
Sex finished. Bianca lay there knowing the exact truth of her limit—nearly forty-five minutes of unbroken hard fucking before her body gave out completely—while Cassidy, the friend she had casually mentioned the machine to last week, still had no idea she had gone this far or lasted this long.
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