AN: Hey all! This is the first installment in what I plan to be a multi-chaptered fic of exploits, sexual and otherwise, between Mettaton and Humanoid!Alphys (I can't write Alphys as a lizard, it gives me too much of a bestiality vibe lol). Please let me know if you enjoyed and/or if you have any feedback!
Mettaton EX's construction was finally complete and Alphys had never felt more proud of herself in her life. She was very, very rarely proud of herself. But this masterpiece of a robot body was truly the Sistine Chapel of her creations.
She had confirmed with Asgore multiple times that the robot could be designed in any way she saw fit. Mettaton himself was a standard hunk of junk: an unassuming box with arms that could issue quizzes and cooking shows. Mettaton EX, however, was the side project Alphys took on that had a little less relevance to the assignment she was given.
To be frank, Mettaton's new body was that of a bishounen. Modeled after one, that is. Inspired by the men of "Black Butler", Alphys had opted for impossibly beautiful features, soft, shapely silicone limbs hidden under skimpy armor, and a complex array of pleasure sensors all wired to very lifelike, humanoid male genitalia. For television purposes, naturally.
Alphys laid a hand on Mettaton's as he began to stir. "Do you feel okay?"
His glassy, purple eyes began to glow. "Ohh, yes…" He slowly got to his feet with Alphys' assistance, wobbling somewhat on his devastatingly high heels. "I have so many… ah…" He looked down at his hands, touching his fingertips together inquisitively.
"Senses?"
Mettaton glanced up, puzzled.
"Acute feeling in your limbs," explained Alphys, "I wanted to make this body more realistic. Like a real human TV star".
Mettaton drew his hands up his chest, around his neck, and tangled his fingers in his hair. "So this is what it's like to be a star. Everything feels so…so good."
"R-right," Alphys stammered, trying to hide her embarrassment, "I gave you a heck of a lot of wiring…"
"Maybe… a little too much?" she continued as Mettaton's hungry hands began to wander back downwards. Obviously, she had given him increased pleasure sensors closer to his groin, but it wouldn't do for a robot meant for television to be rubbing himself like this constantly.
"Gracious," Mettaton gasped as his hands reached his curvaceous silicone thighs, and he began sliding them up and down with earnest.
Alphys rushed forward and slapped his hands away from his body, the embarrassment becoming a little much for her. "Not yet!"
Mettaton's head shot up, one perfect eyebrow arching formidably. "Not yet?" he repeated, an amused smirk spreading across his face.
Alphys blushed tremendously. "I-I mean…just, don't touch yourself like that, okay? You're gonna end up embarrassing both of us."
Mettaton grinned. "You're not very good at hiding your intentions, Doctor."
Alphys folded her arms defensively. "I don't know what you're talking about."
Mettaton slid closer to her and gently laid a hand on the small of her back. "It's very clear I look like one of those anime boys you can't get enough of," he purred, "The ones who look more like ladies than the female characters do? I mean, you have me in heels, darling."
Alphys allowed a small sigh to escape her as Mettaton's hand began to explore her back. "You've awarded me with an excess of sensory pleasure… not to mention this," he grasped the bulge as his crotch.
"It goes without saying that robots…" Mettaton leaned in closer until his mouth was inches from Alphys' ear, "do not need dicks, gorgeous."
Mettaton's arm snaked around Alphys' waist and she yelped in surprise as his body pressed up against hers. He nibbled gently on her ear, dislodging her glasses with his face and eliciting from her a soft moan. Alphys noticed with a thrill that she could feel the knuckles of Mettaton's hand moving against her as he massaged his cock.
"This feeling," Mettaton murmered, "is indescribably good. Does it feel like this for you, too?"
"I-it can," Alphys stammered, "Why don't… why don't you give it a try?"
Mettaton chuckled softly and slipped a hand within Alphys' lab coat and under her sweater, his delicate fingers probing across and then down her stomach until they found their target. His silicone hand were perfect for the job and sent a violent shudder of pleasure through Alphys' body as it touched her.
Encouraged by her positive reaction, Mettaton pressed his fingers in harder until two of his fingertips slipped inside of her. Alphys gasped, leaning back against her creation with her full weight. His soft plastic lips traversed up and down Alphys' neck as he continued, allowing his fingers to emerge every so often to massage her clit before sliding back inside. With this, it didn't take long for Alphys to come, violently, leaving her a shuddering puddle on the floor beneath Mettaton.
When she had caught her breath, she adjusted her glasses and peered up at him. He was looming over her, hand still on his groin, with a very mischievous smile on his face. "How did I do?"
"Listen, Mettaton," Alphys gasped, "I've installed some other capabilities… they're, ah… I'll show you. Come here."
Mettaton stepped forward obligingly and Alphys pulled down his spandex tights, freeing the sizeable organ she had gifted him with.
"This obviously has the most sensory reaction out of all of your body parts," Alphys said, straightening up on her knees and taking Mettaton's waist in her hands, "But there's something special I designed it to do as well. You'll see."
Mettaton began to say something but was interrupted by his own sharp gasp as Alphys took his cock into her mouth. The sensation was like nothing he could have ever imagined. Unable to resist, his hands traveled up to Alphys' head and gently guided her even more forward until her nose brushed up against his metal plating.
The warmth and wetness of Alphys' mouth and throat was unbearable. Mettaton grew increasingly aware of a delicious pressure growing in his groin; the stronger it became, the louder his sighs and moans of pleasure.
Alphys was taking him with earnest, now; Mettaton threw his head back, eyes closed and jaw hanging open. Her muffled grunts with every thrust of her head teased the robot further. He felt as if he were rolling down a steep incline, picking up speed with every second, with no other motive than to reach the bottom…
Following a few, final thrusts of his own, Mettaton was suddenly hit with a cascade of gratification like a tidal wave. He cried out once more in ecstasy before stumbling backwards and crashing clumsily into the wall behind him.
When his vision had refocused, he noticed Alphys's mouth was glistening with some sort of wetness. "Did that… was that from me?" he panted.
Alphys nodded, wiping her face with the sleeve of her coat. "Yeah… that was kind of the secret addition, I guess. I wanted to make sure you were…as I said...ah, realistic."
Mettaton slid slowly down the wall to a sitting position, a smile spreading across his lips. "Of course you did. Pervert. Robots don't need to come, you know."
Alphys laughed. "Well, I guess you're special, then. Get your pants back on. You're going live in, like, twenty minutes."
Mettaton leapt to his feet, nearly tripping over his heels as he yanked up his tights. "Twenty minutes?! Are you kidding me? I need to fix my makeup! Do my hair! Oh dear, oh dear, oh dear…"
"Better hurry up!" Alphys called after him as he charged from the room in a state of panic. Heaving a great sigh, she readjusted her clothing and smiled. In theory, it sounded shameful to lose one's virginity to a robot of one's own creation: by now, however, Alphys was fully convinced that Mettaton EX was the invention of a lifetime.
To be continued...