"All Of My Wetware Has Built-In Failsafes. It's Literally Idiot-Proof."

"Are you comfy, Kadosi?"
"You Can Call Me Kado, It's Fine!" 
"Kado. Yeah… sorry!" The cheetah had not taken his eyes off the screen, his face scrunched in a focused squint, the look of someone who was trying to make sense of a new computer… or in this case, an older one, with a chunky text-based interface and a keyboard with a lot of extra keys. The little workstation was a bit tight for space - you could only fit maybe one more person in there, if that. It was the cheapest workshop to rent by the hour. The machinery worked just fine, even if it was old and creaky… and even if someone had probably been fucked on or against every bit of this room. Rentals like this were used pretty frequently for kinky hookups. 
…It was Kado who picked the place out. Aster was still wondering if he was hinting at something. Making a proposition.
"But Yeah, I'm Good." The Avali's bird's teal, wing-enrobed hands were crossed over the front of his grey stomach. His long tail with a raptor-like feathered tip was tucked through a hole that had been haphazardly cut out of the already worn-out chair. "The Chair's A Bit Creaky, But You Get What You Pay For."
"I'm… not sure how all of this works," Aster said, squinting between the screen and a little sheet of paper on which instructions had been scrawled. 
"Of Course I'm Sure," Kado replied. The more he spoke, the more apparent the synthesised timbre of his replaced voice-box became. "It's Really Straightforward. All Of My Wetware Has Built-In Failsafes. It's Literally Idiot-Proof."
"Hah!" Aster shrugged. "If you say so… all I have to do is hit enter and read out what I see?"
"That's All. No Need To Touch Anything Else."
"And why can't an algorithm or AI do this?"
"I Don't Trust Those," Kado said with a vocoded sigh as they sat up, fishing around for something behind the back of the chair. "They Get Things Wrong Way More Often Than You Think. To Say Nothing Of the AIs That Cascade And Try To Take Over Your Mind."
"That happens?" Aster scoffed. "I thought that was an urban myth!"
"It Might Be, But I'm Not Gonna Find Out The Hard Way."

"Fair." Aster shrugged. "Okay, so… it says it'll start with the Ocular enhancements. I didn't know you had augmented vision!"
"Most Avali Are Really Short-sighted," Kado explained, feeding a cable through the back of the chair and guiding it carefully towards the port in the back of his neck. "That's What Our Hearing Makes Up For."
"Damn, you're really making a hard sell. Making me wanna get augmented too."
"Oh, It's A Pain In The Tail In Other Ways. Like… This Thing. Can You Gimme A Hand?"
"S-sure!" Aster said, skittering behind Kado's chair. "Do I just push it in and twist it?"
"Yes, It'll Lock Into Place. I Might Need Your Help Taking It Out Later… Be Gentle, These Things Can be Delicate."
"Gotcha…" Aster said. He guided the cable into the slot in the back of the Avali's neck, just at the base of the skull. It slid and clicked pleasantly into place.

"This Thing Is Gonna Take A Few Hours. But You Can Just Set It And Forget It, Get A 'Spresso And Come Back."
"I don't mind keeping you company."
"N'awww, You're Sweet!" Kado giggled. "Okay. The Data-Pad I Gave You Has A Trouble-Shooting Section, Just In Case Anything Goes Amiss."

"Alright…"
Aster tried to keep himself under control. God, that was such a cute giggle. He still couldn't believe he'd been asked to do this for his crush… he was close to pinching himself to see if he might have been dreaming.
Anxiety was still gripping him. He needed to make sure everything went right…
But he had the instructions. The notes on the thin sheet of paper were just legible enough, once he figured out the difference between 1 and i, and 0 and O.
"Okay, all set… starting Ocular Diagnostics." Aster hit the enter key, and the monitor flickered. Text scrolled by faster than Aster could see - it was definitely designed for cyborgs who could read far faster than an organic could.
"Ready," Kado said, looking straight up as a pair of small screens curved around from behind Kado's head, practically clamping over his eyes like a vice.
Now was the moment of truth. Kado couldn't see outside of that horizon of screens.

"….wait, something's not right, I'm getting an error message…" Aster said, looking at the still-black screen. "it says, uh…"
"Don't Worry, Those Pop Up All The Time. As Long As It Doesn't Start With-
"Cascade, something…"
"Oh. …That's Okay, Don't Panic, Aster. Just Switch To-"
"I've got it, don't worry." Aster said. He didn't look at the data-pad Kado had given him. He stayed with the handwritten notes.
The cheetah took a small flash drive in a flimsy cracked plastic enclosure from his pocket, and connected to the workstation. The screen lit up a sickly green.
"Wait, What? Hold On, Let Me- Ah!"
Even though the screens were covering Kado's eyes, Aster could see the light bleeding from them, bouncing off of the Avali's body.
Rainbows exploded from them, a shifting storm of thick colour-blocks moving at an epileptic pace; a corruption of their usual purpose for calibrating visual implants. The shapes and colours were commands of their own, attacking the Avali's brain and forcing it to produce floods of pleasure-chemicals.
"Agh… Nnnghhh…" Kado groaned, dazed. "A…Aster, What Are You D…Doing…"
"Shhh. Just let it happen. You trust me, remember? This is gonna make you function way better…"
"S…Stop…!" Kado's claws clenched as he tried to lift them up to push the screens away.
The screen was still opaque. But Aster knew there were a couple commands he could do on his end. The notes said 'Press E key for endrophin jolt'.
The cat pressed it once.
"Ghhhahh…~!" Kado's body jolted, his hips leaping upwards as his shorts tented.
Aster huffed. The giggles were one thing. But Kado's moans… they were especially hot. 
He pressed it again, Kado whined louder this time, his hips twisting, his tail wriggling like a worm on a hook.
"Having fun…?" Aster said, quietly. " There'll be more where that came from when we're done… Way, way more."
Kado had gone a little stiller, punch-drunk from the sudden pleasure. It seemed to quell the resistance to the visual hack, anyway.

Aster went back to the scrawled instructions, his paws sweating a little from excitement. The hack-drive was working just as the black market software dealer said it would. The mind-stunning patterns continued until Kado went still, one last little weak croak escaping his throat before he went silent, and his hands collapsed back onto his stomach.
It was cute as hell. Aster wanted to watch him sink. But he had a short window of time to input the next commands, and make sure the hack was completely successful. 
The chances of completely frying Kado's brain was minimal but… he didn't wanna take any chances.
The green screen flickered a few times, then changed colour again. An ASCII portrait of a Goat-Headed devil appeared on the screen. It laughed silently.

Kado spoke, and Aster practically leapt out of his skin. It was a deeper, guttural sound than Kado's normal voice.
"ACCESS TO ROOT SYSTEMS GRANTED. VOCAL COMMANDS ENABLED. PLEASE SPEAK CLEARLY AND PRECISELY."
Kado was emotionless. When he was not speaking, his mouth hung slack. Saliva, one of the few hints of his organic side, was oozing from it.
"Gladly…" Aster said, thickly, looking back to his reference notes. "Flash Amended Brainware, SlutKadosi.BFW."
There was a slight pause before he spoke again.
"WARNING. THIS IS A DESTRUCTIVE ACTION AND WILL COMPLETELY OVERWRITE THE PREVIOUS BRAINWARE. PLEASE MAKE BACKUP BEFORE PROCEEDING."
"Override. Delete Root without Backup."
"ILLEGAL FUNCTION. ROOT BACKUP MUST BE MADE BEFORE PROCEEDING."
Aster had a feeling this was coming. He consulted the notes again, reading the words softly aloud as he clacked at the keys.
"ROOT BACKUP MUST BE-" Kado twitched, his eyes rolling. "ROOT BACKUP MUST-MUST-MUST….. DELETING ROOT."
"Fuck." Aster gasped, realising how shallow his nervous breaths had been. Now they were well and truly past the point of no return…. he was able to breathe a little more deeply and freely.

A pixellated green bar filled the monitor, and a glance over at Kado's limp, twitching body showed little lights flashing beneath the joints, around the eyes… 
Aster slowly stroked his cock. He wouldn't have that long to wait before Kado woke up again. 
The Avali looked cute, too… like he was fast asleep, having a vivid dream that made him kick and grunt now and again. His fingers curled. His toes splayed. His tail brushed on the floor, then wagged faster, then became still again. 

Kado's eyes opened suddenly. His own cock jumped to attention. He stared into space, still drooling… his once green eyes flashed and pulsed, a mirror of the mind-stunning patterns he'd been subjected to. Aster watched his face for any signs of life. Recognition. An awareness of what was happening to him. Hopefully not. Aster felt guilty enough as is.
The progress bar reached its end, and with a chime, Kado's eyes returned to 'normal' … or something close to normal, with a subtly opaque glaze to them that wasn't there before.
He blinked slowly, and turned his gaze towards the cat. At first… he just stared. As if he was still waking up.

"How're you feeling, Kado?" Aster asked, on pins and needles.
"Oh, Hey, Master!" Kado said, as his face suddenly pulled into a bright smile. As he excitedly rose, the cable in the back of his neck went taut, keeping him from coming upright. He reached back and yanked the cable free, before leaping out of the chair and shimmying onto the floor. Like a dog seeking a treat, he buried his snout between the cheetah's legs, nuzzling and licking while chirping happily.
"Kado, are… are you okay?" Aster asked. His hands nervously explored the back of Kado's head, feeling the port… he didn't know if it was damaged or not.
…He was surprised to notice he didn't really care either way.
"Never Better, Master~!" Kado replied, pawing at Aster with another one of those beautiful giggles. "What's Up?"

Aster paused at that. Was there a little bit of guilt creeping up his spine? This wasn't quite the Kadosi he knew. There was a fair bit more… energy. A neediness. He wasn't sure how he felt about it…
"Nothing. Thanks, uh… for letting me do your diagnostics…"
"Why Are You Thanking Me, Master?" Kado giggled and stuck out his little tongue. "I'll Let You Do Whatever You Want With Me…"

…Aster wasn't expecting Kado to call him Master. He wasn't sure if he'd bother trying to correct him, too. It sounded… nice.

Aster pinched his paw just to confirm he wasn't dreaming. This was real. He'd done it. All that money he'd spent, the weeks of eating dry noodles and beans, saving up for this opportunity… It wasn't a scam. His crush was all his…

He hastily tugged down his pants, just down as far as his thighs, and fished out his cock. Kado practically devoured it in an instant, squishing his squat snout against the base. The inside of his mouth was smooth and velvety, and as Aster pushed his crotch against the Avali's nose, he felt the throat close around the tip of his cock….
"Ghhhhah!" Aster gasped and huffed, bending over his hacked fucktoy. "Y-you can hold your breath, right…?"The Avali just gulped happily and grabbed the cheetah's ass cheeks, keeping him hilted inside his throat.
"Ghh… ffuck…" The cheetah's hips started to buck, and the shitty chair and workstation shook in the tiny little cubicle. No one needed to know what they were getting up to anyway. And they had the place booked for several more hours.
"C-cumming," Aster grunted huskily. Kado pulled back to open his mouth wide. As Aster painted his face with the first of what would be many rough climaxes, the cyborg chittered happily. It was no longer a spontaneous, genuine giggle. It was done in response to specific stimuli, as per his programming.
Aster didn't care if it was a little hollow. It was still cute as fuck. And now he had that giggle - along with everything else - on tap.