Chapter Text
When they came to everything seemed normal. It should have just been routine maintenance after all. Sun had always been nervous going to parts and services so when he was escorted there today by two new technicians he'd never seen before his anxiety was at an all time high. It seemed, however, that all that fear had been unnecessary. He could feel Moon poking at the back of their mind and his body felt familiar and intact. No noticable changes at a glance. Sun was jolted out of their musings by a small hand waving in his face. He looked to the side to see a short female technician with bright pink hair smiling at him.
"How are you guys feeling?" she asked, looking him over. "We gave you guys a special upgrade today. Plan on giving it to all the more advanced animatronics in the Pizzaplex but you two are our patient zero."
"Patient zero?" Sun questioned, not quite liking the sound of it. "New upgrade? What kind of upgrade?"
"Well since your ai is so advanced, basically sentient!" she exclaimed, "we figured we'd give you two the ability to have some fun." She reached over for a clipboard before continuing. "Your programming gives you knowledge of human anatomy so we decided to make you more anatomically correct." A diagram was shoved in front of his face showing exactly what had been done to his... lower regions.
Sun's fans whirred full force. He was sure he'd be bright red by now if there was any blood in his body. "But that's inappropriate!" he squeaked out.
"Well you don't have to take advantage of your new features but they're there if you ever want them," the other tech spoke up. A taller man with a buzzcut who had been standing silently in the corner until now. "However, this has to stay a secret. No other staff or guests can know about this or we'll all be in trouble." He sighs before gesturing to the door with his thumb, "anyway you're free to go as long as everything feels in order."
Not wanting to prolong an already awkward experience Sun bolts out the door. As he makes his way back to the daycare he grasps at his rays, pulling on them roughly. "Did you see what they did to us Moon? It's filthy filthy filthy," he murmured.
"Just calm down Sun," Moon exhaled. "They gave us a vagina, so what? Doesn't mean we have to do anything with it."
Sun froze for a second before continuing on with their pulling and muttering. Leave it to Moon to be so blunt about something so crude.
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Moon was losing it. It had been a week of Sun's nonstop hyper-fixating on their 'special upgrade' and he was sick of it. He really couldn't care less about the change but clearly Sun wasn't going to let it go. Coming up with a plan was the easy part. Hell, executing the plan was the easy part. All it took was Moon being in control and that happened daily. When the lights went out after close he took his time, lulling Sun into a false sense of security. After cleaning up the daycare and retreating to their room he finally took action. Sun, who had been floating at the back of his mind, was suddenly front and center as Moon dropped their pants to the floor.
"What do you think you're doing," Sun buzzed.
"What you've been wanting to do all week, right?"
"Of course not you PERV."
Moon just let out a huff before continuing. "Just so you know I have no interest in this so maybe you're the pervert here Sunshine," Moon said, reaching towards the paneling between their legs.
Sun wants to retreat, wants to look away, run as far as possible but... he also doesn't. Maybe Moon was right. Maybe he was the pervert here. He was the one who had been thinking about their new parts nonstop, not Moon. He looked on as his other half cupped the slit at the front of their plating.
Moon put two fingers on either side of the slit and pulled it apart as they both looked down at their new opening. Moon was going to keep going when he was interrupted by a small noise from Sun. "What was that?"
"I said wait."
"Wait? Why?" Sun hesitated and Moon was about to continue when he finally uttered out a small "can we swap?" Now that was more like it. Moon pulled his hands away and maneuvered over to the light switch, flipping it quickly before Sun could change his mind. Once Sun had shifted into himself he just stood there and Moon wondered if he'd made a mistake flipping the lights. Maybe this was all part of Sun's plan to get him to stop. Those thoughts came to a screeching halt as he watched Sun bring a tentative hand to their slit, drawing a finger up and letting out a breathy gasp. Moon watches as Sun pulls back for a second before going back to stroking his soft folds.
Sun doesn't stop. For some reason he can't. He continues rubbing his fingers up and down, only pausing as he brushes against their sensitive clit. Eventually it isn't enough. He slowly presses a single finger to their entrance and pushes in and has to pause because "oh," that feels good. It makes him sick to his stomach. How can something so wrong, so filthy, make them feel like this. Despite these conflicting feelings he continues, pushing forward until his finger is fully sheathed in the wet heat. He gives an experimental thrust and shudders.
"Damn," Moon uttered.
"Language."
"Sorry, sorry," Moon giggled, amazed Sun could still be so strict while knuckle deep in their shared cunt. "You're doing so well though. Didn't think you had it in you."
Something about Moon's soft praise added fuel to the fire already burning in Sun's core. He sinks a second finger inside, pumping them in tandem. The pleasure is overwhelming. He has to lean back against the wall to brace himself. A third finger follows far too quickly and Sun hisses at the stretch.
"I told you I wasn't the pervert here," Moon chuckles breathily.
Something about that hurt, although he knew Moon was joking. They weren't meant to be doing this, they weren't programmed for this, this was all the fault of the new technicians in parts and services. But here they were three fingers deep and loving it. He couldn't stop if he wanted to. And so it continued like that, Sun thrusting his fingers as deep as they could go and Moon muttering soft encouragement. The pressure that has been building is almost unbearable at this point. With a final thrust and the press of his palm against their sensitive clit he tips over the edge. Sun continues thrusting his fingers slow as he slides to the floor, riding out the waves of pleasure as they turn to overstimulation. As he removes his fingers and looks at the mess he doesn't quite feel like himself. "Clean up, clean up, clean up," he mutters. Despite his words he can't seem to get himself to move.
"Flip the lights. I'll clean up for you," Moon says softly, sensing Sun's internal struggle.
Sun stands shakily and stumbles to the switch, flipping it with no hesitation.
Moon sighs as he feels Sun retreat deep into their shared mind. He may have pushed him too far this time but he hadn't known what else to do. Confronting things directly had always worked for him but perhaps he should have treated this subject with more tact. Push come to shove they could just ask the techs to remove the upgrade he supposed. Unfortunately he had a feeling things wouldn't be that easy...