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“What will you do,” Dr. Kuseno asked, “when you have your revenge?”
“Keep fighting,” The teenager in front of him looked at him with eyes full of fire, eyes Kuseno had seen in the mirror so many times in his own youth. “Keep destroying evil and protecting people.”
“You won’t be able to take this back,” the scientist reminded him, for what felt like the hundredth time. “Once you’re a cyborg, you’ll never be able to return to a human body.”
The boy just nodded, face set, and Dr. Kuseno knew he wasn’t going to give this up... not for anything.
———
Normally, Dr. Kuseno would never even consider turning a healthy teenage boy into a cyborg, let alone with such invasive modifications. His fully-mechanized bodies were for the crippled, the paralyzed, the people willing to risk it all for the ability to move and talk and live normal lives.
Genos’s new life would be anything but normal. Every part of his body, from his metal hands to his blazing heart, was built for combat, for strength and durability. He took the surgeries with stoic determination as more and more of his body was replaced with artificial parts. At the end only his brain, brainstem and a few essential glands remained of his former self.
Yet Dr. Kuseno wasn’t building a war machine. Genos was still human, and no matter how much the young cyborg protested “unnecessary additions”, the doctor installed those he felt confident wouldn’t impact Genos’s battle capabilities. Receptors calibrated over long, sleepless nights to taste food, to smell flowers, to feel the warmth of a person’s touch. Artificial hormones to keep his brain developing as he grew, tear ducts so that he could cry, the ability to sleep and dream.
When Genos turned 17, Dr. Kuseno handed over his latest innovation.
“I don’t need this,” Genos said, staring down at the box containing an artificial phallus. “I told you before.”
“You told me you didn’t want one built into your chassis,” the doctor pointed out. “That it would slow you down in combat. This one attaches to a socket in your latest upgrade, and you can easily remove it when you aren’t using it.”
“There’s no point,” Genos insisted. “I can’t be distracted.”
“Maybe not now,” the doctor replied, “but someday you might meet someone. You might even want to use those samples I froze and have children.”
Dr. Kuseno knew that he might be gone by the time that happened. Better to give it to Genos now, just in case.
“Besides,” he added, “A little self-satisfaction is important for a lad your age.”
Genos finally took the box, and for a few years they didn’t mention it again. Dr. Kuseno kept the socket whenever he upgraded or repaired the young cyborg’s body, and Genos didn’t argue about it.
It wasn’t until Genos was 19, six months after he moved in with that “Sensei” of his, that he brought up the topic of his own accord.
“Doctor, can I ask for a new piece of equipment?” He asked.
“Of course,” Kuseno said with a smile, bringing a cup of tea to his lips. “What is it, my boy?”
“I would like an anus.”
Dr. Kuseno spat tea all over one of his instrument panels. He grabbed a rag to mop it up, mind spinning. He had been expecting a weapons upgrade, maybe a more advanced eyepiece. This was completely out of left field.
“Would that be problematic?” Genos asked mildly, as immune to embarrassment as ever. The doctor sighed, then turned to the youth he considered a son.
“What for?” No, he shouldn’t say it like that, that sounded accusing. “I mean, the purpose. Waste disposal or-“
“Sexual pleasure.” Genos replied, as though the answer was obvious.
“With your Sensei, I’m guessing,” Dr. Kuseno said, pinching the bridge of his long nose. Honestly, he should have seen it coming, with the way Genos doted on the man.
“Yes, precisely.” Genos said, then started speaking faster and faster, going into one of his characteristic long-winded tangents. “We declared our mutual feelings twenty-one days ago, and soon after began engaging in sexual intercourse. We began with manual and oral stimulation, but we are both interested in attempting penetration. However, as Sensei is my superior in skill and my senior in age, it would feel inappropriate for him to be the receiving partner, at least to me. He claims not to care which position he takes, as long as it feels good, and we have had enough success in that area so far to-“
“Genos!” Doctor Kuseno cried, overwhelmed and mortified by the sudden rush of personal information. Normally he was content to let the lad ramble, but this was more than he was prepared to know about someone he saw as family. “I don’t need to know any more details, all right?”
The young cyborg nodded, and Dr. Kuseno took a long moment to gather his thoughts, before turning to look Genos in the eye.
“Are you certain this is what you want?” He asked. “That he is what you want?”
“Yes.” Genos’s eyes held the same fire, the same determination, as they had for the past four years... but something was different. There was a softer turn to his lips, a warm half-smile Dr. Kuseno has only ever seen when he talked about his beloved teacher.
“Alright,” the doctor said with a nod. The next question was going to be supremely awkward, but he wanted to make sure Genos was happy with the finished product. “Any... specifications?”
“Sturdy. Easy to clean.” Genos said, ever practical. “Nothing that will interfere with combat, and...” the artificial skin of his cheeks turned pink, just a little, another of Dr. Kuseno’s concessions to his humanity. “And something that will make him feel good.”
The doctor’s heart softened, and he smiled at his own memories of being young and in love. “I’ll do everything I can, my boy.”
———
Dr. Kuseno went to the new project with a will, ignoring his own discomfort, for the sake of his protégé. Replicating a part of his own anatomy he’d used his whole life was one thing, but this was completely different... still, he couldn’t give Genos something he hadn’t put his heart and soul into.
The solutions used for non-combat cyborgs wouldn’t work in this case. Modifying Genos’s internal systems wouldn’t be possible without some reduction in mobility. After all, creating a hole would necessitate moving other parts around, let alone systems to make it pleasurable and hygienic. Instead, Dr. Kuseno made an attachment for the front, using the same connection port as Genos’s penis. He based the interior on the highest-quality masturbation toy he could find, full of massaging motors, bumps, ridges and grooves whose purpose he carefully avoided thinking about. He added refillable internal lubricant dispensers and as many sensory receptors as possible, wired directly to the pleasure centers of Genos’s brain.
Finally, Dr. Kuseno was satisfied. If their relationship ever ended, at least it wouldn’t be because of lackluster sex. The doctor had done what he could for their happiness, and the rest would be up to Genos and this Sensei of his.
When he passed the new box off to Genos, the young cyborg’s face lit up the way it usually only did when receiving heavy ordinance.
“Make sure you bring Saitama to meet me soon, alright?” The doctor said, pleased in spite of his embarrassment by Genos’s happy reaction. “I want to finally meet him, especially now you’ve gotten so close.”
“Of course, of course!” Genos cried, nodding over and over again with a huge grin on his face. It was the complete opposite of how he reacted last time he got something like this. “I’m sure he’ll be glad to see you.”
The doctor smiled. He just hoped that he would be able to look the older hero in the eye by the time they finally met.