Cyber Sheath

I played a lot of Cyberpunk 2077, which might have inspired this story. Hope you enjoy :)

“I’m telling you, the best thing you can do is get a Mr. Stud,” Lexi said, finger pointed at the somewhat pricey implant. “Don’t matter what you got now—you can have anything with a Mr. Stud.” 

“Yeah, I guess,” Blaine replied, obviously unconvinced. 

“You want a porn star dick? With a Mr. Stud, all you gotta do is swap your base unit with a carbon copy of Hank Steele.” Lexi raised both hands to outline the famous adult film actor’s colossal 12-inch erection. “Looks and feels exactly like the real thing.” 

“I mean, that does sound good, but, um…” Blaine’s chubby face scrunched up in obvious discomfort. “It’s a lot of money, and I just… I don’t think I could do it.” 

“Do what?”

“You know,” Blaine squirmed, “cut my dick off.” 

“I mean, it’s not like you lose it. Go to a licensed ripperdoc and you can keep your original pecker. They just call it the ‘base’ model—y’know, so you don’t gotta go walkin’ around like you’ve got a football stuffed in your pants.” Lexi smirked. “Although, I see plenty of clientele who basically never take their Steele off. Some tell me they can’t even remember where they put their original.”

“Well that I get.” Blaine had never been particularly fond of his modest five inches, but after coming to Cyber City, it seemed like every guy he tried to sleep with was packing eight inches or more. Blaine was otherwise a pretty good-looking guy—maybe a little on the stout side, but being a little plush never seemed to prevent him from getting dates. Getting laid, though, was a little more frustrating. Body modification was so common nowadays that even minor physical ailments were replaced with cybernetics, and purely aesthetic upgrades were a thriving industry. And if you didn’t want to be laughed out of the bedroom (as had happened more than once to Blaine) you just had to be packing.

Still, there was nothing wrong with his dick, and the idea of having it removed was just too much to bear even if it was with the promise of getting something better.

“I just can’t do it,” Blaine confessed. “What if something goes wrong? What if the implant doesn’t take? I’d be some freakshow Ken doll!”

“I’ve literally never heard of that happening, but,” Lexi sighed and held up her hands again in a more conciliatory gesture. “I get it. It’s a big step, and not everybody wants to go that far. There is another, less invasion option.” 

Blaine raised a cautious eyebrow. “Go on.” 

“It’s called a sheath.” Lexi grabbed the datapad and navigated to a different screen. “You sort of wear it over your actual junk. It’s no Mr. Stud, but it’s got a few sensors and haptics that transfer the sensation the sheath feels to your little pecker.” 

Blaine ignored the slight. “How does it stay on?” 

“Nanomachines. They latch onto your skin and don’t let go until you say so via the phone app. You don’t even have to be hard—it’ll get erect with you.”

“Huh,” Blaine offered, his interest piqued as he looked through the options available to him. He didn’t want something obviously fake like a copy of Hank Steele, but maybe a solid eight inches? 

“That one,” Blaine pointed. “Eight inches and thick, so it’ll look maybe a little more natural on me.” 

“A solid choice, sir,” Lexi replied theatrically. “I’ll go wrap it up for you.”

“Thanks, Lex,” Blaine said, but she’d already sashayed behind the bead curtain into the back of the sex shop. She later returned with an unmarked box and explained once again that it wouldn’t feel quite as good as a Mr. Stud (always trying to upsell, that one), but it should be plenty to get Blaine and his lucky partner off. Blaine was certainly hoping so.

After he left, Lex texted a number on her phone, then went back to idly playing VR games until someone else came through the front door.

Blaine managed to ignore his curiosity on the subway home, but as soon as he entered his modest apartment, he tore into the unmarked box to grab a hold of his new toy for the first time. It certainly felt good in his hand—hefty in a way his own dick never did, and fleshy in a way that belied its artificial origins. It almost feels like the real thing, Blaine mused. 

Then he removed his pants and wondered exactly how to put the thing on. There was obviously a hole, but how did it stay? Out of curiosity, he reached down and simply placed his flaccid cock in the hole. Despite a total lack of lubrication, it slid inside easily, and then it seemed to activate some sort of automatic suction that swallowed him to the root and pressed firmly against his pelvis. Once there, a few tugs revealed it was securely fashioned using whatever technology Lexi had mentioned. He couldn’t even tell where the sheath began and his skin ended.

And it felt… real. It wasn’t the tug of some dead weight hanging off his cock—it felt like his cock pulling on the skin of his groin. Blaine reached down to touch it and was further amazed to feel his fingers sliding along the thick flesh of the sheath as though he were touching his own member. Lexi had said that it wouldn’t feel as good as an implant, but this felt amazing! 

With rising excitement, Blaine was further astounded to watch his thick-but-flaccid sheath begin to extend and lengthen in time with his heartbeat, just like a real cock would go from unexcited and restful to mild arousal, and soon he was a towering eight inches jutting proudly from beneath his belly. It felt impossible—there was no way his dick could have provided the foundation for something so rigid, so heavy, and yet as he reached down to tug back his foreskin and see his glistening head, it all felt so unbelievably true. 

“Wow,” Blaine breathed out, astonished. Then he began to test his newly augmented pleasure center. It all felt perfectly real—his hand gliding up and down his length felt like he was doing it to his own dick. His fingers felt the thick, veiny, steel-hard cock in the synchronized way touching his own body would feel. Gripping his shaft, however, felt entirely new—his hand was more than capable of covering his entire cock before, but now he proudly noted shaft and head were clearly still visible, and his fingers were deliciously further apart. 

Blaine was getting very close to discovering how his new cock would handle ejaculation when he heard a banging on his door. 

“Oh, fuck,” Blaine said, startled, before heading to peer through his door’s security camera. To his surprise, the person his AI identified with a red “unknown” symbol quickly turned into a green “approved person.” How did—?

Before Blaine could grab the knob, the door opened and a large, dark-skinned man wearing black leather stepped inside. “Enjoying your new toy I see,” the man said, his deep voice stopping Blaine in his tracks. “Oh, you’re a nice stout one. You’d be surprised how popular a doll like you can be.” 

“Who… who are you?” 

The dark man walked casually inside and closed the door behind him. He was imposingly large—tall, with broad shoulders, thick, muscled arms (one of which glinted silver), and a great dome of a stomach. Blaine couldn’t help but also note the impressive bulge behind his black leather codpiece. 

“My name won’t matter to you in a minute, but you can call me Duncan for now,” the man said. Duncan then strode over to Blaine’s couch and put his feet up on the coffee table. His boots, steel-toed and soled, nearly broke the tempered glass.

With rising dread, Blaine asked, “How did you get inside?”

“I own you now,” Duncan stated matter-of-factly. “The moment you put that sheath on, I gained access to your entire network. I know your passcodes, I know your accounts—I even know what you had for breakfast.”

“Wha… what do you want?” Blaine asked as cold terror gripped him.

“Well that’s simple,” Duncan heaved himself up, his leather outfit creaking as it strained to cover his massive body, and went over to grab Duncan by his still-hard cock. His hand was big enough to nearly cover all eight inches. “I want you, hot stuff.”

With that, Duncan bent down to mash his lips into Blaine’s. Stunned, Blaine could do nothing but melt into the larger man, his terror at the intruder suddenly overwhelmed by a rising, inexplicable lust. He should have been shouting at the man to leave or calling the police, but instead, he found his tongue overlapping and thrusting into this man’s mouth. As Duncan’s strong hand began to stroke slowly, Blaine could feel himself fast approaching orgasm once again.

“There’s just one thing left for you to do for me, cutie,” Duncan whispered in Blaine’s ear. “Cum for me.”

On command, Blaine’s balls rose, his big cock flexed, and jet after jet of cum erupted from the tip. Blaine couldn’t believe what he was seeing—he’d never cum so much in his life. He didn’t even know how it was possible, and yet he saw four, five, then six white ropes launch themselves from his massive cock. It felt so good, so incredibly good… 

And it kept feeling good. Better and better. Blaine’s orgasm went on for 20 seconds, then 30, then a full minute. His heavily-lidded eyes unfocused and a line of drool began to fall from the open side of his mouth. His whole world was bliss unending. 

“Atta boy,” Duncan said, knowing that Blaine couldn’t hear him anyway. He stood back and watched his chunky new toy shudder as he literally cummed his brains out, the sheath stretching a human orgasm for far longer than a human brain could take. “Keep it cumming, big boy.” 

Blaine did. After five minutes, the puddle of cum stretched nearly from the couch to the door. Blaine’s eyes had a blank, robotic stare, his contortions now an automatic twitch rather than the pleasured tremors of orgasm. Another five minutes and it was more like the pained contractions of a seizure. 

“That’s enough, doll,” Duncan ordered, and Blaine—or what used to be Blaine—stood ramrod straight, unseeing eyes staring out from a completely expressionless face, his still-hard cock leaking into the puddle that surrounded him. Duncan then pulled out a small datapad and entered a few commands. His augmented-reality sight provided him with a visual data stream that went straight from his datapad to the doll’s sheath. 

“Your first client is a kinky bastard,” Duncan grumbled as he finished his typing. “But this should make him happy.” 

The dimensions of Blaine’s perfect cock morphed outward, thickening unnaturally before the bunching flesh began to billow outward, swallowing the base in flab before expanding the hapless doll. Blaine had never been in great shape, but the sheath changed his mere paunch into a rolling wave of fat in seconds. His body ballooned outward as pounder after pound piled on, stretching his contours obscenely before collapsing under their own increasing mass. Folds of flesh appeared on his back, sides, neck, and inner legs as blubber collected, then stretched his body wider, thicker, heavier. 

"Fucker loves his fat boys," Duncan muttered, watching dispassionately as the new doll’s thunder thighs stretched his scrotum to the point where his lemon-sized balls were dangling near dimpled knees. "Might as well fuck a water bed." 

The now 500-pound doll simply stared blankly as the changes concluded with massive tits sagging over an even more impressive belly that covered up whatever remained of the sheath. There was still a big dick under there—somewhere—but any client would have to dig and lift rolls of fat to find it. 

“Alright doll, you’ve got five minutes. Clean up this mess in the meantime,” Duncan pointed at Blaine’s final load, the last remnant of the apartment’s former occupant. Now it would be a fuckpad for Duncan’s growing menagerie of dolls.