Actions

Work Header

Rating:
Archive Warning:
Category:
Fandom:
Character:
Additional Tags:
Language:
English
Stats:
Published:
2026-06-21
Updated:
2026-07-16
Words:
7,018
Chapters:
5/?
Comments:
4
Kudos:
22
Bookmarks:
2
Hits:
1,171

Nine To Five

Summary:

Now that humanity has spread and is claiming the cosmos, many of the most dangerous jobs in militaries and corporations go to Biochemically Enhanced Individuals (or BEIs). These superhuman men have undergone dramatic medical treatments and completed demanding training programmes in order to be of the most help to their fellow man - that's you!

In addition to their increased size, muscular development and superhuman endurance, these incredible men have been known to suffer side effects. Their heightened sexual needs, sexual endowments and masculine odours can make them challenging colleagues to work with - but that's where you come in!

A series of unconnected short stories written in the same universe, presented together. Based on an original idea + artwork by Otter in Training.

Notes:

All chapters are stories based on an idea by Otter in Training on Bluesky, specifically this post and this one. I had a handful of my own ideas which I thought would be around 500 - 1,000 words each; as always they grew beyond that and for every one I wrote I came up with an idea for more, so I decided I'd start sharing them. I'll keep going until I run out. Enjoy!

(See the end of the work for more notes.)

Chapter 1: Be Serious

Summary:

It's Mateo's first day in the facility, and there are a few things he can't quite believe about how things work around here.

Tags: Free Use, Anal, Workplace Sex, Casual Sex

Chapter Text

 

As the facility’s hydraulic door slid open, Mateo found himself stunned. He stared up and around at the quantum processors and titanium piping that seemed to surround him in all dimensions, complex machinery existing in the place of walls or a ceiling. He caught himself with his mouth open, closed it deliberately, and hurried to keep up with his assigned work buddy.

‘Everyone’s the same when they see the operation for the first time,’ chuckled Bruno, clocking his reaction. ‘Biggest facility you’ve ever been in, am I right?’

‘They didn’t have anything like this in my home colony,’ Mateo said, struck by the number of technicians milling by them on the walkway, at workstations below them or suspended from above to conduct repairs. ‘Mostly just cobalt mines and a small factory to make parts. But this…’

‘Hey, you passed your induction, I’m sure they saw something special in you,’ Bruno said kindly. ‘Welcome to the deep end.’

They wound their way through the facility, uncoiling as it was like a metal hydra making full use of its own space. They ascended two fixed ladders and navigated the reactor, Mateo gripping the safety railing and avoiding looking down for too long.

‘You’ll be here in Sector 15 with me,’ Bruno told him as he held his wrist to a panel and a door labelled ‘15’ yawned open for them. ‘Me and three other technicians, I should say. It’s a small team but there’s always lots to do. You’ll be tailing me for the first six days and after that it’s a bit looser, but I’ll always be here if you need help with anything.’

‘I appreciate it,’ Mateo laughed. ‘I really do.’

‘You look like you’ve got some questions before we get started,’ Bruno smiled, cocking his head and leaning back against a workstation.

‘So many,’ Mateo blurted. ‘First off, um – how long is today’s shift?’

‘They didn’t even tell you that?’

‘They just said be here at six.’

‘Ah. Well, we’re on the early shift, six til two. The late workers take over from us two til ten, and the night workers ten til six again.’

‘Okay. Um…’ He had another question ready, but someone walked past him and he forgot it. Someone big – one of the BEIs.

‘You okay?’ Bruno asked.

‘…Yeah,’ Mateo said, snapping out of it. ‘Yeah. Ready to get started.’

Bruno checked the logs and found their first job – a simple hardware upgrade to one of the transport relays. They headed over and Mateo tried to pay close attention to everything he was being shown and told, but whenever another BEI walked past he found his attention… drifting? There was something about them; not just their imposing statures and impressive physiques, something that made him feel… sort of…

Sparker?’ Bruno asked, with a sharpness suggesting this was his second or third time of trying.

‘Sorry,’ Mateo said quickly, passing the tool down to him. Bruno chuckled and shook his head.

‘You’d better come down here and see this,’ he said from under the machine. ‘You’ll be fixing up a lot of these as they upgrade to the new version, so you’ll want to see exactly how it’s done.’

Not wanting to push his work buddy’s patience further he immediately dropped to all fours, squeezing into the space under the relay next to him and appreciating the surprising amount of mercy afforded on his knees by the smart-material of his overalls.

Bruno showed him the guts of the machine, explaining what they were taking out and how to replace it, before asking, apparently out of nowhere, ‘You never seen a super before?’

‘…Huh?’

‘A super. The BEIs.’

‘Oh. I… I have done, but not this close. You call them supers?’

‘Usually. Or giants. Or macros. There’s a few terms people like to throw around.’

‘And the… the supers don’t mind?’

Bruno turned his head slightly in the confined space; just enough to show the sparkle in his eye. ‘They have their share of nicknames for us, too. But most are too blue to go sharing during working hours, if you catch my drift.’

Mateo made a face, thinking he knew what Bruno meant, and then doubting himself.

‘You look like you’ve got another question.’

‘I don’t really know how to ask, but… all that stuff they say, about the BEIs. About the supers? It’s not really true, is it?’

‘What do you mean?’ Bruno asked, using the sparker to fix the new part in place.

‘Well… you know. All that stuff about them having superhuman sex drives…’

Bruno laughed. ‘Of course they do! All that extra testosterone, all that oxytocin that comes with the treatment… it has its impact. Wouldn’t be fair to call it a side effect, even. It’s just the effect. Full stop.’

‘Right, I get that. But back in my home colony – they had rumours about how places like this worked. That the supers would go around… aha… having sex with the technicians, all the time! Just… going around, and… penetrating them. And the technicians have to get on with their work like it’s all, you know, normal!’

Bruno slowly stopped what he was doing and paused a little too long before responding. ‘You completed all your training, right?’

‘Uh, most of it,’ Mateo said sheepishly. ‘I missed the last two days due to gravitation sickness but they said I looked like the type that would pick it up pretty quickly, which I took to mean…’ He licked his lips nervously and frowned. ‘Actually I don’t know what that was supposed to mean. What are you saying?’

‘It’s all true, Mateo.’

‘Be serious.’

‘I am serious. Even if you weren’t at the training, you got the starter package, right? Complete with ten-inch standard-issue dildo, recommended for usage in personal time prior to starting work? To aid “smooth transitioning” into the demanding environment that forms our workplace?’

‘My friend Jimmy said that was a joke!’

‘A joke?’

‘Yeah, like… a prank you play on the new guys,’ Mateo floundered. ‘Give them a massive dildo and tell them they’ll need to get plenty of use out of it before they start and then, I don’t know, have a big laugh at their expense on their first day! Jimmy said it was a joke, it had to have been a joke, because, because…’

‘Your friend Jimmy. He had gravitation sickness too?’

‘Yeah. He missed the same two days I did. Why?’

‘What sector’s he in? D’you know?’

‘Three.’

Bruno grimaced, sucking air through his teeth. ‘Rough. He’s gonna be sore the next time you see him.’

‘I still can’t tell if you’re joking.’

A look of sudden alarm crossed Bruno’s face. ‘Are you prepped?’

‘Prepped?’

‘Did you take your stopper pill this morning. And are you lubed up?’

‘Yeah, I took the pill. No, I’m not “lubed up” – are you really saying that—’

‘Good thing you’re with me,’ Bruno muttered, rummaging in a pocket of his overalls. ‘I’ve always got some spare. Here, use it.’

Mateo looked down at the small bottle of Corporation Personal Lubricant with dismay.

‘It’s not as fancy as some of the brands you can buy in the vending machines but the Corporation stuff works fine. And it’s free during working hours.’

‘…You can stop stringing me along now,’ Mateo laughed nervously. ‘I’m not going to— oh my God.’

‘Hmm?’

Mateo wriggled in place but the tight space he and his buddy were working in meant he couldn’t look behind him. ‘Someone’s just put their hands on my ass.’

‘Ah, your first time! I hope he’s one of the gentle ones. Mine was a brute.’ Bruno paused and smiled. ‘Seems he’s got a friend. There you go, we can both go through it together. Perfect training!’

‘Is this really happening?’ Mateo floundered, blood rushing to his face and somewhere else he’d rather not admit to himself. ‘Gah! He’s undoing my overalls!’

‘That’s what that seam at the back is for – easy access,’ Bruno said to him matter-of-factly. ‘By the way, are you wearing a jockstrap?’

‘Don’t be ridiculous,’ Mateo answered, trying and failing not to be aroused by the sizeable paws manhandling him.

‘Then there’s another tip for you. Jockstraps starting from tomorrow; it just makes things easier.’

There was an audible ripping sound from behind them.

‘See. You’ll go through more than a few pairs otherwise.’

‘Oh, God…’

‘Now would be a good time for that—nnh!—lube that I gave you,’ Bruno said, apparently already penetrated by his own super.

‘He’s… ah… got his own…’ Mateo managed, trying not to moan as he was fingered from behind.

‘Then you did get one of the gentler ones. Lucky!’ Bruno quipped, his head and shoulders rhythmically rocking forwards and back as he was fucked by the second super.

Mateo opened his mouth to speak again but his first word was pulled apart into a cry of pleasure as the super behind him slid his cock gently inside.

‘Okay, so, back to it,’ Bruno said without humour. ‘I’m sure you’ve used a sparker before, but the important thing is not to leave any gaps around the module where dust or anything could get in. You see?’

‘How are… you… so…’ Mateo moaned, his arms gradually giving way and lowering his face to the ground. ‘I don’t… think I can… work like this…’

‘You’ll get used to it,’ Bruno said, not even breaking a sweat. ‘So, once the module is in place, we need to run a quick diagnostic before reconnecting the relay to the wider system…’

Mateo had prided himself on being bright – that’s what everyone in his home colony thought of him – but he wasn’t bright enough to retain much of anything his work buddy was telling him, especially when it became clear that the super fucking him had been withholding some of his length. Once all of it was in him, it was all he could do to keep his eyes vaguely in focus and his whimpering to a minimum.

Eventually, it stopped with very little additional ceremony. The BEI behind him grunted a few times, slowed his thrusts, throbbed powerfully inside him for a few seconds and eventually pulled out. He felt an apologetic couple of pats on his ass before both supers got up and left them to it, Mateo’s legs a shaking mess and Bruno appearing generally unfazed.

‘You handled it well,’ Bruno told him when they finally finished their job and got back to their feet again, each resealing his smart-mat overalls. ‘Especially for someone who didn’t know it was coming. Still think it was all a joke?’

‘Hur-hur,’ Mateo mumbled, his head still swimming.

‘Ha! You’ll fit in just fine around here. Oh, and by the way – I didn’t mention at the time but well done for not jerking off during. I know it can be tempting sometimes but it’s generally discouraged – the company doesn’t like us technicians doing anything that doesn’t leave both hands free,’ he smiled, holding both of his up and wiggling his fingers. ‘Alright, let’s head back to the workstation.’

‘Mhmm,’ Mateo grunted, surreptitiously using one hand to cover his front and hide any evidence that he’d managed perfectly well to climax ‘during’ anyway, in his overalls, no hands required.