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Saitama knew how it happened. He had even seen when Genos stepped on the trigger for the trap. The lead box closed around them with a heavy bang, but not before Saitama locked eyes with his foe. He was crumpled into a kneel, Genos yelping as he was smashed into Saitama.
Saitama snorted at the noise, it sounded unnatural coming from the cyborg. It was like nothing he had ever heard from the cyborg before.
As his eyes adjusted to the dim yellow lights coming from Genos’ irises he realized the position him and his disciple were forced into. Genos’ thighs were resting on top of his, but metal was protruding into Saitama’s hip as Genos’ knees were snapped at the joint.
Saitama looked down at the damage on Genos’ left leg, as it was the side tickling his hip as it stabbed him. “Ah! Your knees!”
“I’m alright Sensei.” Genos replied, looking around their temporary prison for an easy way out.
“No you’re not! Now you have to go to Kuseno’s to get fixed.” Saitama tried to stand up straighter but remembered he was in a box as his scalp bumped the ceiling.
“Yes, Sensei, that is correct. Because the large joints in my knees were destroyed I must go in for—”
“Shh, I know, I know.”
Saitama went to punch the box, but it hissed suddenly, the two pieces that made it up shifted closer together as they locked fully into place.
Their hips were shoved together, and Genos’ knees made a horrible scraping sound on the walls as they crushed his legs further. Saitama was forced to hold himself up with his hands caging in Genos’ head.
The cyborg had looked away in a flustered flurry, looking everywhere but him. His vents suddenly hissed with a sudden increase in heat. Saitama’s eyes grew even wider as he realized this was the cyborg’s equivalent to being flustered.
The cyborg’s legs were spread apart by Saitama’s hips even further now. He chanced a glance at Saitama and immediately shut his eyes as he was met with his gaze. With the absence of Genos’ eyes, they fell into darkness.
Saitama shifted again and felt his blood speed to his face, his skin going bright red as his cock shifted against the cleft of Genos’s ass. His stomach jumped to his throat, hips trying to shift backwards only to be met with no room. He was grateful for the darkness, embarrassed at the thought of just how red he was. He swallowed thickly, jumping as Genos’ hand landed on his thigh, it having nowhere else to go.
The sudden arousal slapped him in the face, and created ten thousand thoughts in his typically quiet head.
Like how had he not noticed how big Genos was. His shoulders filled the width of the box, where Saitama barely reached three quarters.
And Genos’ face was cute when he was trying to hide his embarrassment.
The cyborg opened his eyes again, looking questioning as he looked up at Saitama. Saitama swallowed at that, twitching as Genos’ hand shifted up his thigh.
“S-Sensei.” Genos whined—WHINED at him. “Get us out of here.” The cyborg shifted, wiggling his hips to try and change positions with dysfunctional knees. Saitama jerked back to avoid the contact, the cage exploding behind him in his retreat.
His entire skull was as red as a tomato in the light, and blood was traveling to other places he wanted to ignore.
What just happened?!
A weapon flew right at Saitama’s head, who grabbed the throwing knife midair and sent it flying back towards the villain in a daze. The serpent monster’s head exploded with the impact, body collapsing in yet another easy kill.
Saitama could not take his eyes off the steaming cyborg though, with his knees spread and crumpled, still wedged in the box.
“I’m stuck…” The cyborg said, his voice sounding weird as steam hissed out of his mouth.
Saitama cursed internally.
—
—
“I’ll have him fixed in about two days. I have some reinforcing upgrades for his joints. Hopefully preventing easy breaks like today.” Dr. Kuseno said, connecting Genos up to his upgrade module.
The cyborg had been awfully quiet on their trip here, never meeting Saitama’s eyes fully. Steam had been puffing from his shoulders every other moment. Saitama just hoped he did not make his disciple upset, or uncomfortable with him…
And Saitama knew his head, his bald bald head… was as red as a tomato the entire trek.
It was not like it was Saitama’s fault they ended up in that situation. He sighed, rubbing the back of his neck and glancing up at Genos. He was asleep now, awaiting upgrades.
Saitama would have to apologize to him when he came home.
A blush threatened to over take Saitama’s head once more at that thought, before he bid his farewells to Kuseno and left for… home.
—
—
Saitama pulled out some ingredients for dinner, scratching at his side as he turned the stove on to boil water. He was just going to make ramen, something quick so he could go to bed and forget about today.
The weirdest day of his life. He had yet to address the questions that had bombarded him earlier…
Like if he found Genos attractive…?
He clicked his tongue, frustrated that he was thinking about them now.
He tried to just not think, that was super easy for him.
…
…Damnit
Saitama had never thought Genos was not attractive, anyone with eyes could tell he was handsome and just glancing at his fan base proved it. Saitama shifted against the counter, images of Genos’ thighs being spread flashing in his head.
Glowing golden eyes gazing up at him with absolute confidence that Saitama would take care of him. Saitama snapped the ladle he was holding, not realizing how hard he was gripping the utensil.
He was blushing, quickly, he lifted his ramen off the stove and took it to the table in a hurry to eat. Wanting to ignore these thoughts. To ignore the weird feeling in his gut imagining Genos in that utterly scandalous position once again— Saitama squeezed his eyes shut and cut that string of thought with sheer will.
He finished dinner, brushed his teeth and was laying in his futon when the next question broke his will rather quickly.
Did he have feelings for Genos?
He liked having him around. He brought things into Saitama’s life that changed the entire course of it. At first it was strange, annoying at times when Genos first moved in, but that all seemed so small now.
He liked hearing Genos in the kitchen while he was reading manga. Where he was surely wearing that pink apron. He was determined to help Saitama anyway the man so desired.
Genos even helped him with sales. Saitama loved it when Genos would find a deal he missed, or a local sale that slipped through the cracks.
Saitama’s heart jumped to his throat. Weird.
Genos would always have that joyfully excited look on his face when Saitama would praise him for it too.
Saitama could not stop the cheesy smile from tugging across his face.
The sound of Genos’ core at night basically lulled Saitama to sleep, to the point that it was hard to get rest when the cyborg was gone.
Saitama glanced over at the empty spot next to him, suddenly feeling as if his chest was heavy.
What was that?
Okay, so he did have feelings for Genos. He groaned into his pillow, shifting his head to stare at the wall.
Which kind of feelings?
Was he Angry? No… It could be fear, but Saitama felt fear would feel more significant. What was weighing on him when Genos was gone?
Saitama focused on that heavy feeling, shutting his eyes as he tried to piece it together with Genos.
Was it because he was gone?
Saitama winced, his chest hurt. He swallowed and pulled his blanket around himself tighter. After one, two moments, another question popped up.
Was he gay? He only ever had thoughts like this for Genos. No other men…
Genos was a guy though, so would that not mean he was gay for feeling that way…? Saitama rolled his eyes. It was all getting too complicated, his mind not used to thinking about feelings.
He shifted to his side, hoping his blanket made it feel just as warm as when Genos sleeps next to him…
He was so screwed.
He made Genos uncomfortable for sure, and he figured out he had some sort of feelings for the guy in a single day.
Ugh, he still had to apologize to him. He frowned as dread filled his guts. He curled into his blanket, hoping to be swallowed up by the fabric.
—
—
“Did he look upset when he was leaving? I’ve never seen him so red! He must have been so angry!” Genos was on the repair table the next morning, rambling off to Kuseno.
The doctor sighed, setting down his tools and lifting his welding guard. “Genos, boy… I think you’re putting too much thought into this. You’ll go back and everything will be normal. You two were just forced into an awkward situation!” He set aside his torch, motioning for Genos to bend his leg.
“He didn’t seem all that bothered anyway.” Kuseno snarked, having witnessed just how flustered Saitama was.
Genos did not bend his leg and sat up with a rather upset expression. Kuseno took a deep breath, realizing the borg was not going to drop the subject until he saw fit.
“Doctor… I…” Kuseno paused at his serious tone of voice, looking up from his tools. “… I have had feelings for Saitama.” Genos mumbled, staring determinedly in the doctor's eyes. “Before all of this…”
Kuseno already knew of these so-called feelings. The chemical balance in Genos’ brain log showed high amounts of oxytocin. It was only a hop skip and a jump to connect the dots on who exactly caused this sudden influx. It was only a matter of time before Genos would bring it up with him.
Kuseno just did not expect this to be what brought it up.
“I know.” He said, flipping his shield down and moving onto the next leg with his torch.
Genos laid back down a moment later, staring up at the ceiling impatiently as Kuseno worked. Underwhelmed by the reaction the doctor gave him.
Kuseno finished, admiring his work before instructing Genos to move them. The joints worked like butter, a much smoother feeling than Genos was used to when he moved them.
“Genos, I accept you and whatever it is you want to do.” Kuseno said as he leaned back, lifting his welding shield. “I wish you luck in your pursuit.” The older man looked up at Genos with a grin, confident in his words.
Genos nodded, falling silent as Kuseno started attaching different sections of his leg. It was only silent for a couple more moments before Genos asked, “Can I be put to sleep?”
Kuseno nodded, standing up to enter the request into the computer. Genos hardly ever liked being worked on when he was conscious. He only stayed awake when he had things he wanted to discuss.
Before Genos’ eyes shut, he said aloud, “Thank you, Kuseno.”
—
—
Saitama woke to a cold empty apartment, his first thoughts wondering where Genos was as he woke to the vacant spot next to him. He sighed as he remembered the cyborg was gone for repairs, blushing as he also remembered exactly why.
He got up quickly so he could use the restroom.
It was always so much duller when Genos was not around. Like Saitama paid a little less attention when he was alone. He was out of the bathroom and eating breakfast before he knew it, watching the news for any monsters he could take care of.
There were not any sales, or new games to play that King let him borrow, so Saitama was going to set out in hopes he would find at least an interesting backstory from a villain. He finished off his meal, setting the dishes in the sink and putting his hero suit on to patrol.
His feet carried him throughout the city, but there was not a single monster. It was like they were all hiding. The second he would hear something, a suspicious thud, a rumble in the earth and go to investigate. It was as if whatever made the noise had disappeared. He paused his monster hunt through town in the middle of a park, having noticed Mumen Rider helping a couple get their cat out of a tree.
The little cat was meowing, having climbed the tree with no idea of how to get down. Saitama waited back as Mumen retrieved the feline, knowing well that cats had not liked him since his training.
Mumen handed the cat to the owners and wished them a good day with a pleasant grin. They thanked him profusely but turned their concern quickly to their pet.
Mumen had greeted him the second he had noticed the caped hero. “Saitama! What are you doing here?” He questioned as he walked over.
“I’m just patrolling the city, thought I’d say hi.” Saitama replied, shifting his weight to his other foot. Ignoring the new nagging feeling of his heart telling him to ask for advice.
Mumen nodded, his friendly face ever more friendly. “I was actually gonna take a break! You wanna get lunch?”
Saitama nodded, having not realized the time had flown by so fast. It was already lunch time? How had he missed that?
“Yeah, where are you getting food?”
“I was gonna head to a seafood place a couple blocks down.”
“Count me in.”
They chatted about Mumen’s day, how he helped several people in the parks. He was a hero everyone could love, the neighborly kind. Saitama was a little envious, he was never good at connecting with others.
Once they sat down at a table the subject quickly changed.
“Where’s Genos? Is he in for repairs?” Mumen asked, picking up his menu.
Saitama flushed, looking down at his menu to distract himself and partially cover his face. “Yeah, he was damaged yesterday. Some villain jumped us on our way home.” He swallowed as he remembered the occasion unwillingly.
“You guys were jumped?” Mumen’s tone gave away how shocked he was to hear that, but Saitama was used to strong monsters trying to take him down.
“Yeah, some monster tried to trap Genos and me in this lead box. I took care of ‘em, but the trap broke Genos’ knees.” Saitama said as the blush covering his cheeks grew worse, remembering how he had to stand over Genos, who was wedged in the box with his thighs spread out, and unwedge the cyborg by hand.
It was when the younger man burned bright red as Saitama’s hands slid around his thighs, that he decided to simply rip the box apart.
“Poor Genos… How often does he go in to be repaired?” Mumen asked, leaning back in his seat casually.
“At least once a week, but he’s injured almost every fight. He can repair the small things like broken fingers, and certain wiring issues though.” Saitama mumbled, eyes lingering on the sardine dish on the menu. Thinking that Genos would probably order that, he liked sardines.
He blinked, feeling his stomach twist, he found the thought oddly intimate. Who was he to wonder. Genos was not here to order anything anyway. He flipped the menu, looking at their deals.
“Must be strange, being made of metal and all. Do you think it freaks Genos out when he’s destroyed?”
Saitama looked up at Mumen at that, frowning because he did not know the answer. Genos had never really talked about it, other than explaining how his mechanics worked when he was fixing himself.
Saitama wanted to know, he just did not know he did…
What was up with him? One risqué situation with his Disciple and he was thinking all this weird shit.
“Uh… He’s never mentioned anything about it.” Saitama shrugged, staring back down at the menu. “I’ll ask him.” He said, having no idea how he would and rubbing the back of his neck nervously.
When was the last time he had felt nervous? Saitama’s thoughts halted as realization slapped him in the face.
“Don’t push if it makes him uncomfortable. Maybe it’s a touchy subject.” Mumen suggested before standing to go order.
Saitama followed him seconds later as the silence in his head began to ring. He ordered the cheapest thing on the menu, a deal for a bowl of seafood ramen. As they waited for their order, Saitama broke that momentary silence.
“Mumen…”
“Hmm?”
“I think I have feelings for Genos.” Saitama said, staring at the ground with furrowed brows. He had something for the cyborg at least.
Genos was smart and observant, and cared about him more than Saitama was sure he noticed. He just needed something to slap him in the face to start noticing it all.
“Duh?” Mumen turned to him with a knowing smirk, chuckling lightly.
Saitama turned beet red, had he been so unaware of his own feelings that Mumen was telling him straight to his face that he had been obvious about them. How had Mumen known!?
He crossed his arms over his chest and shrugged. “I don’t know, I’m not used to this whole… feeling.”
“You mean feelings?”
Saitama shook his head, looking at the paintings hanging off the walls in the restaurant. Not really taking in the imagery. “No… For years it’s been as if my emotions have been slowly erased. But recently… Genos— Genos is making me feel things I haven’t felt in… forever.”
Mumen smiled, patting Saitama on the shoulder. “Are you scared of these feelings?”
Saitama shook his head once more. Taking in a breath and huffing it out. “Not at all, I just… I’m not used to it. It’s hard to figure out what feelings mean what…” He glanced up at Mumen and cleared his throat. “Sorry, this was weird to bring up so suddenly.”
Mumen shook his head. “Not really, if you’re feeling lost, it’s common to look for help from your friends.” He smiled with his words, tapping Saitama on the shoulder with his fist.
Saitama smiled lightly, rubbing the spot on his arm despite it being impossible for it to hurt. “What should I do?” He asked, feeling a plethora of things that were impossible to decipher as they bubbled up from his core.
Mumen thought about it for a moment, furrowing his brow. “I think you’re thinking too much about it. You’re not letting yourself feel these feelings, you're getting a taste of them and immediately questioning what they are, right?”
Saitama nodded, having not realized that was exactly what he was doing. The second he felt something different, or had thoughts that were uncommon for him he would immediately try and question them. Which would create more questions about himself that he had no answers for.
“Whenever you feel something new, don’t question it. Let yourself feel it, and once it passes and the moment is gone, then you can try and put a name to it.” Mumen said, giving Saitama a determined grin. It made Saitama grin back at him, the words being exactly what he needed to hear.
“Yeah, okay.” Saitama agreed, smiling to himself as he looked away.
Now it was just a waiting game. He would allow himself to just feel when Genos came home.
“Orders number 54 and 55!”
—
—
On his trek from doctor Kuseno’s lab to his own dwelling… Genos felt nerves zipping through his circuitry. Saitama had barely even spoken to him when he was carrying him to Kuseno’s, not meeting his eye the entire time the hero was pulling the cyborg out of his tight spot.
He must have made his Sensei angry. It was the only logical explanation for his flushed face and silent demeanor. He should have detected the trap before it had the chance to put them in such a position.
He was steaming at all the possibilities of how Saitama might greet him. The best being everything going back to normal, to the worst where Saitama tells him he was no longer his disciple.
He puffed out a gust of steam from his lips, shaking his head and trying his best not to overthink.
Saitama would probably just ignore what happened. He probably already forgot about it.
Genos huffed another cloud of steam, knowing he would never get the image of Saitama on top of him out of his head.
—
—
Saitama felt his stomach jump as keys jingled at the front door, the manga in his hands suddenly very boring. He set it aside, getting up to lean against the wall in the entryway as Genos was slipping off his shoes.
“Welcome back.” Saitama greeted, curious of the steam that puffed from Genos’s shoulders. Surely his disciple was not angry with him, Saitama could tell when he was mad. He always got this stone cold look, like he was covering up the anger.
Genos met his gaze, coming further into the entryway and stopping in front of Saitama. “Thank you Sensei.” He said, gazing down at him with a pleased grin.
Saitama grinned back, nodding his head once towards the kitchen. “I was just about to start dinner.” He muttered, having to look away as the lingering gazes made his cheeks heat up. “I got distracted. I was planning something simple.”
Genos nodded, knowing they were low on groceries this time around. It would be good to do something simple tonight. “Would you like me to help?” He offered, watching the pink on Saitama’s cheek. That was new.
“You want to make vegetables and rice for me?” Saitama offered, dragging his gaze back up Genos’s form before he landed on his face.
Genos’ eyes widened for a second and they both heard his system hum as he flushed. He nodded, hesitating before he turned into the kitchen.
Saitama followed him, opening the fridge and collecting the things they would need for tonight’s dinner. Genos took all the vegetables, having already grabbed the cutting board and the good knife.
Saitama grabbed a can of spam from the cupboard, along with a few things to season it with. They worked in relative silence, but it was a comfortable one.
Genos moved to grab their old rice cooker, his new knee gliding in a way he did not expect and he stumbled. He caught himself on the counter, but not before he pinned Saitama to it. His metal chest pressed firmly against the other man’s toned back.
“Sorry Sensei.” The cyborg sounded a little nervous, shifting back.
Saitama shivered as Genos’ breath puffed against the skin on his neck. He bit his lip, staring down at the spam sizzling on his pan. He chose to ignore the heat in his face.
“It’s okay, you alright?” He asked, glancing at the metal arms still pinning him to the counter.
The flush on Saitama’s head was noticeable, Genos was confident he was not imagining it. He lingered, hovering over Saitama, not moving his hands from their spots on the counter.
Saitama felt his stomach twist as each dragging moment made him flush worse. He set the cooked pieces on a plate, setting the pan down and looking over his shoulder.
The sight had butterflies filling his guts, and a blaring question popped into his head. Was he a bottom? The sudden thick desire to have Genos pin him down and take him was intoxicating and unexpected.
His brown eyes searched Genos's yellow ones. Genos glanced down to his lips, and felt panic flood through him at how obvious it must have been. Saitama’s eyebrows arched in surprise, and he faltered in shock. The cyborg went to pull away, figuring he had done something wrong.
What he did not expect was for a hand to bury into his hair, gripping at it lightly to stop him. His eyes widened, and he gasped despite himself.
“Sensei, wa-what are—”
Before Genos could continue, Saitama's other hand did the same as his right and started to aggressively ruffle the cyborg’s hair. Genos made a noise of surprise, standing as still as he could as Saitama messed with his hair. The hands eventually went still as they succeeded in their rumpling.
“Sensei?” He whispered, standing there with his eyes questioning and confused. That was when he saw it. The glance down to his own lips. “Saitama?” He breathed, feeling hot all over, wanting nothing more than for Saitama to pull him forward.
“I’m glad you're okay.” Saitama mumbled, his face getting redder as he spoke. He glanced down to the floor for a moment, trying to not question the need to kiss Genos.
Genos just watched him, trying to keep his internal system from overheating. Trying to keep his thoughts clear of Saitama kissing him. Not wanting to feed into his wishful thoughts, but those brown eyes flashed to the cyborg's lips again on the way to meeting his yellow gaze. It was enough to get Genos’ thoughts on chaste kisses and exposed skin.
He felt fuzzy.
“It was all very minor…” He mumbled, eyes half lidded.
“Maybe for you.” Saitama cupped Genos’ chin, caressing his cheeks with a heavy thumb.
“Sa-Sensei?”
“Yeah, Genos?”
The cyborg took in a deep breath and leaned into the warmth of his hero’s hand. A hand that he witnessed obliterate monsters and threats alike with a single punch. Flattening mountains with no effort at all. This gentle and caring touch teased Genos’ face sensors with a softness Genos had yet to feel against his carbon skin.
“Can...” Genos faltered, looking up from his teacher’s chest to his eyes. The older man hummed in question, trying to encourage Genos to continue. “...Can we kiss?” His voice was quiet, afraid that if he asked the question too loud he would be met with a heavy refusal.
Saitama’s lips parted as he stared, not moving or saying anything in response. Genos’ core sank, and he shut his eyes to pull away, but that was enough to snap Saitama out of his shock. Gripping the Cyborg’s ear to keep him in place.
“Wait, wait, wait Genos.” He coaxed Genos back, both hands now sandwiching the Cyborg’s jaw. Saitama took a moment to look over Genos’ features, taking in as much as he could before he spoke. “Yes, kiss me.”
Genos’ eyes snapped wide open, his shoulders going slack as his gaze locked with his Hero’s. Saitama leaned forward and Genos did NOT think he would get this far, his eyes darted to Saitama’s mouth before shutting tightly. When his Hero’s lips met his he let out a shaky breath that he did not realize he was holding. His hands pulled from the counter to grip Saitama’s hips in a gentle hold.
The two of them stayed like this for several moments, holding one another as they explored this new territory. Never going past these slow, sloppy kisses. Genos made a small noise, a hum, as Saitama ran his thumbs under the cyborg’s eyes. The gentle touch made Genos’ core ache with something unfamiliar, and he mirrored the motion with his thumbs on the crease of Saitama’s hips.
Saitama gasped into his mouth, breaking the kiss as he wrapped his hands around Genos’ wrists. He licked his lips, tasting the other man and flaring with desire for more of it.
“I think Saitama Sensei is cute.” Genos whispered.
Saitama’s face went bright red, that flushing glow reaching the tops of his shoulders. “You’re weird.” Saitama mumbled. “Who thinks a bald guy is cute?” He snarked, a cheeky smile pulling at his lips.
“I do!” Genos said, as if genuinely answering Saitama’s rhetorical question.
Saitama pushed the Cyborg’s shoulder gently, laughing at the other man, wondering if Genos was actually serious. Genos broke out into a warm smile, feeling something fluttery inside his chest. He laughed along with Saitama, smiling down at him.
He squeezed Saitama’s waist, enjoying the way it made the man’s breath hitch. “Let us continue with dinner.” Genos murmured, letting go of Saitama.
The older man nodded, watching Genos step away and go back to cutting carrots.
—
—
Genos was enthralled by the little affections Saitama started to explore with him. The first thing Genos noted was the twelve shoulder bumps on their way home from the market the next day, resulting from their close proximity. Genos had almost dropped the groceries as Saitama kept bumping his hand.
‘Sensei’s powerful hand. I want to feel them again.’
The casual bravery had Genos sitting next to Saitama while he watched tv that same night a lot closer. Saitama sensei leaned against him, resting his head on Genos’ shoulder, and Genos swore he was going to melt. Saitama could not possibly be comfortable but he still wanted to be close. The cyborg had forgotten just how simple and enjoyable affection was. He could tell Saitama had fallen into the closeness casually.
Their futons were closer that night, and they talked in the dark for two hours before they slept. Genos shut down with this airy feeling in his chest, a warmth coming from his vents that felt fuzzy.
The next day as Genos was heading to the hero commission, Saitama had stopped him at the door and kissed him on the cheek. His cheeks were red as he pulled away. Genos also noted how his eyes were glued to the floor. The cyborg’s core felt as if it was going to explode, if Saitama kept this up Genos was going to have some trouble.
Genos left with a quiet goodbye and a goofy little smile on his lips as he walked out of the building.
One of the nights Genos was making dinner, Saitama had come in and watched as the cyborg got ready. Just as Genos was about to start cutting vegetables, Saitama asked to kiss him in a sweet voice that Genos could not help but shiver at as it hit his ears.
Genos turned away from the counter, watching as Sensei crossed the distance between them in a flash. His internal fan kicked on, eyes locked onto Saitama’s hands as they slid up his sides.
“Y-Yes Sensei, I’ll kiss you.” The cyborg reached up with an unwavering hand and cupped the back of Saitama’s neck. He brought his face close to his master’s, brushing their noses together before kissing the man.
Saitama made a small pleased sound, pleasantly surprised by how eager Genos was to do as he was asked. The kiss was slow, a tantalizing drag that had both men wanting more. Genos teased Saitama’s bottom lip with his tongue in a fleeting press, before nipping the flesh with his teeth. He pulled the man closer, flushing their chests together and slotting his leg between Saitama’s knees.
Saitama let out a quiet gasp, pulling back and resting his forehead against Genos’. The blonde hairs tickling his forehead.
“Genos.”
Saitama’s voice was thick with hunger, the kind that had Genos forgetting about the vegetables.
“Saitama?”
Saitama flushed bright red and suddenly held Genos at arms length. Shocking the cyborg out of the heavy heat.
“Ah! Sorry, let me help you with dinner?” Saitama suddenly went to the vegetables Genos was cutting. He left Genos wide eyed and more aroused than the cyborg ever thought he could get.
He almost wanted to pout at his sensei, to tell him how unfair that was. To pin him to the counter and take what the other man was teasing him with.
Genos knew better, determined to be patient and simply informed Saitama what he was planning for dinner.
—
—
Genos had a horrible day. Saitama could not accompany him to the hero association, which made the countless meetings drag on for several boring hours. Things were a lot more dull without his sensei. When he was finally allowed a little field work, his fangirls had driven him up the walls with how many screamed and followed him around.
He blew up at a fan when she mentioned him pitying caped baldy, as if that was all their relationship was. Like Genos only spent time with him for social gain. Genos could hear Saitama’s words, to ignore it because they had no idea what it took to be heros. He tried his best but the fan still left with tears in her eyes.
He stomped up the stairs to the apartment, just wanting to get home. A prayer that Saitama was there waiting for him playing in his head.
Unlocking the door, he pushed it open and deflated as he was greeted with an empty house. He sighed, running a hand through his hair and going into the bathroom. If he had time he wanted to be clean when Saitama returned.
As he showered, Saitama returned home from the market undetected by Genos. The older man heard the shower running, smiling softly. He had missed Genos today, wishing he had been able to join him at the sale.
He went to knock on the door to announce he was home, but Genos stopped him dead in his tracks.
A quiet “Saitama~” came from behind the door, and when the tone hit Saitama’s ears he turned beet red. He stepped back from the door and went to the kitchen to set the groceries down.
He glanced around at the bags, but as he heard a muffled sound come from the bathroom again, he found himself back in front of the door.
“Uh! Saitama! Please Saitama~”
And then Saitama heard it over the running water, the sound of wet metallic slapping against the black mesh that made up Genos’ fleshy parts. Saitama swallowed, feeling a little guilty for being a perv and listening to this.
He could only wonder what Genos was imagining, and from the excess of steam streaming out from under the door he assumed it must be hot.
Another quiet moan, and the sounds become frantic. Saitama bit his lip, the image of Genos working himself to completion making his mind hazy and hot.
“Ah! UH!! Sa—Saitama! Mmph!”
Saitama adjusted his dick, reaching up and knocking lightly at the door.
“Genos?” He called through the door.
He heard several sounds, ones he assumed were things being knocked over as the Cyborg panicked. Genos stared at the door with wide eyes, the silhouette of his sensei standing behind the obscured glass making him nervous.
How long had he been there? Genos questioned, followed by a feeling of crisis.
“Um…”
Saitama chuckled lightly, hearing the cyborg's anxiety in just that utterance.
“Having fun without me? Not fair.” Saitama teased, hearing Genos’ fans through the door. “I’ll get dinner started.” Saitama left with that, a smirk on his expression.
Genos steamed, wanting nothing more than Saitama to join him in the shower. He felt tense, like a string about to snap. Saitama was on the other side of that door, teasing him as if Genos was not waiting for Saitama to offer himself.
He rinsed off, feeling hot as his system craved release. He turned the shower off, dried off as best he could before wrapping his towel loose around his waist.
The steam flowed out into the room as he opened the bathroom door. Saitama looked up from the sink and flushed at the sight of him. He was steaming steadily, synthetic skin flushed, and that towel doing little to hide his arousal.
“Saitama…” He murmured, stepping further into the kitchen.
Saitama put his back to the counter, heart suddenly pounding at the hot desires punching him in the gut. He swallowed, guts twisting each step Genos took.
He loomed over him, one hand reaching up to cup Saitama’s jaw and the other caressing his hip. “I need to kiss you.”
Saitama glanced down. “Is that all?” He asked a little breathlessly.
“I won’t do anything if you don’t want me to Saitama.”
“What is it you want to do Genos?”
The cyborg flushed, leaning into Saitama’s space even further. Hot breath against his ear. “I want to kiss you until you melt.” He whispered.
Saitama shuddered, liking that idea.
“Would Saitama like me beneath him? Or the other way around?” Genos’s chest touched Saitama’s, pressing them even closer together. “I wouldn’t mind either.” He breathed into Saitama’s red ear, hand on his hip squeezing.
Saitama made a panicked noise, never having so much desire flooded into him at once. “Please.” He heard his voice tremble. “The other way around.” He was quiet, but he knew that was what he wanted.
“Okay Saitama.” Genos murmured before his mouth was on Saitama’s in a heated kiss.
—
—
Genos lifted Saitama all the way up, where just the head on his cock was still in his Sensei’s ass, and slammed the strongest man in the world back down onto his hips. Adopting a brutal pace as the rough impacts had Saitama finally crying out.
“Oh Fuck! Genos, yeah! Harder! Hard—r.”
The cyborg took the pleads to heart, slamming Saitama down as hard as he could, and snapping his mechanical hips up to meet the rough impact with even more force. Wet slaps of metal on skin echoed throughout their apartment, accompanied with their groans and moans of pleasure.
Saitama’s toes curled, his back arching and his head falling back in bliss. Genos attacked the exposed neck, determined to get a mark sucked and bit into Saitama’s imperishable skin.
“Yes! Uuuuh ye—ees Genos! So good Genos!”
The cyborg shifts just slightly, slamming directly into Saitama’s prostate over and over again.
Saitama’s cock started leaking with each impact to that sensitive bundle of nerves.
He yelped as Genos flipped him onto his stomach, momentarily choked as Genos’ cock impaled him again. The cyborg pistoned his hips down, burying his cock deep into his Saitama. Making sure to rip every sound out of the most amazing human on earth.
He only paused to pull Saitama’s hips so he was ass up, on his knees, and chest flushed to the bed.
“G-Genos!” Saitama protested, feeling embarrassed that he was letting himself be handled by Genos like this.
Genos who was slamming back into him, gripping his cock and pumping. He was sure to tease at his teacher’s slit and cock head, matching his brutal pace with his hand.
Saitama began to tense, a choking moan tearing from his throat. He jerked back to meet Genos’ thrusts, looking over his shoulder with dazed eyes for only a moment before he shoved his face in a pillow and took it. He was so close. A sob came from him, not believing how good he was getting it.
“I’m—.”
Genos suddenly stopped his hips, squeezing Saitama’s cock at the base as hard as he could.
Saitama groaned, hands urgently reaching down to tug at his cock, or squeeze his balls, anything. Genos stopped those efforts by grabbing Saitama’s wrists, and holding them against the floor above Saitama’s head.
Saitama could just rip Genos’ hands off, but he knew that would ruin the mood they had created.
The mood he worked so hard for.
He chose protesting as the best option. “G-Genos!” He would deny that stuttering whine. “Come—Come on, I was so close. Don’t play unfairly.”
Genos kissed the back of Saitama’s skull, making the older man swallow. No one had ever done that before, and Saitama doubted he would ever let anyone else but Genos do it.
“You don’t like the way I play Sensei?” Genos finally piped up, nipping at the flesh on the back of Saitama’s neck. “Would you like to teach me how you like it? Do you like it slower Saitama?” His voice rolled off the tongue and straight into Saitama’s ear. The cyborg’s hips rolling in slow thrusts.
Genos smirked as he felt Saitama’s dick twitch, and his walls clenched, storing that reaction away for later.
Saitama was panting, not used to hearing Genos sound like that. He had been so quiet throughout this. Saitama could not even think with it so close to his ears. With that cock teasing his insides.
“No—No, I… I liked it when you… fucked me h-hard.” He could barely get those words out, feeling all his skin flush.
Saitama yelled as Genos snapped his hips, slamming into Saitama once. “Like that Sensei?”
Saitama groaned, half frustrated at his disciple. “You smart ass! Come on —Please!” He begged, pushing his ass against Genos and spreading his knees.
Genos felt his temperature jump, steam flowing from his vents, not expecting Saitama to be so shameless. He scolded himself for assuming otherwise, his Saitama came with a lot of surprises.
“Anything for you, Saitama.” He said right against Saitama’s ear, grinning as Saitama clenched around him, a muffled moan coming from the older man.
He let go of Saitama’s hands and gripped the back of his neck with his right hand. His left slid down Saitama’s stomach, teasing the sensitive flesh around Saitama’s sex.
“I won’t hold back.” Was Genos’ final warning before he pulled his cock almost completely out and slammed deep into Saitama once again.
The powerful hero’s back arched, bursts of pleasure zipping through him, making the touches so close to his dick flare with pleasure.
Saitama kept his hands above his head, gripping at the futon with tight fists. Noises being forced from him as Genos pounded him into the floor. Noises he had never imagined he could make.
He matched Genos’ pace with ease, bouncing on Genos’ cock with each thrust. Wanting nothing more than to please the cyborg giving him the best and first fucking he’s ever had.
“H-Holy shit.” Saitama cried out into his pillow, wanting more, Needing more. “Please! Genos!”
“Say— it— properly— Saitama.” Genos punctuated each word with a deep thrust, voice demanding.
Saitama’s legs twitched, his cock smacking against his stomach. “Uunnhh~ Genos! Please touch me— Touch my cock, please!— Please!”
The Cyborg's grip on Saitama’s neck grew harsher, his hips stuttering as he listened to Saitama beg. His control was chipping away as Saitama truly laid himself out for the taking. “Yes, master.”
He gripped Saitama’s cock, warming his palm as he tugged at Saitama’s sex. That word must have done something for Saitama, because he was seconds from coming in mere moments, crying out and drooling on his pillow.
He struggled under the grip on his neck, causing Genos to halt immediately.
“Are you alright?” Genos let go of Saitama to check for damage before he thought better of it. He couldn’t hurt Saitama.
“No! No— I just… I want to see your face when I cum.” He glanced over his shoulder, red, hips twitching and cock pulsing as he was met yet again with a pause in their love making.
“Here.” Genos pulled out and flipped Saitama onto his back, lifting saitama’s hips and shoving a pillow underneath.
Saitama squirmed under Genos’ gaze, everything on display. From his flushed face and his blushing chest, to his pulsing cock and used quivering hole.
Genos was not afraid to stare either, and Saitama swore he saw his eyes take pictures. He was surprised he was not unnerved by it. That staring did not last more than a few moments, before Genos hooked Saitama's knees on his shoulders and leaned forward to bend Saitama.
“Sensei? How about we test how flexible you are?” He grabbed Saitama’s left ankle, holding Saitama’s leg out and lining up his cock.
Saitama shivered, anticipating what was to come. Genos smiled down at him, thrusting in slowly, and Saitama whined as Genos simply adjusted his hold from Saitama’s ankle to his knee, before he finally slammed into Saitama again.
This time his hand was immediately on Saitama’s cock, the new position allowing for Genos to pleasure Saitama’s prostate effectively with each thrust. Slamming into that bundle of nerves with intention.
Saitama spread his legs further, stretching them out as far as they could go. His hips thrusted for purchase, but stuttered as it was hard to chase both pleasures when his head was mush.
“Oh! Saitama! Fuck!” Genos gasped out, hips still matching their brutal pace but Saitama could feel Genos’ composure slipping. “Y-You— feel— so— goood!” His words gritted out, steam puffing with each utterance.
All Saitama could do to respond was a drawn out sob, voice stuttering along with each of Genos’ thrusts.
Genos leaned down and kissed his hero. Needing to swallow the whimpers the older man was making. Saitama let him do just that, groaning into the cyborg’s mouth. Their tongues mingled intimately as they fucked, and Genos’ hand gave a rough tug on Saitama’s cock.
Saitama came with no warning, his body convulsing as his cum shot him in the face, and splattered Genos on the chin. Saitama could not care less as the best orgasm of his life had his eyes rolling into his head and his body seizing up.
Genos let out a static moan that glitched his voice box as it erupted from his throat. As if his mechanical voice was breaking.
Saitama, coming down from his monumental high and still getting fucked, had his voice breaking as he moaned out with after shocks. His prostate still getting abused as Genos chased his finish.
Genos’ hips speed up only slightly, effectively making the slapping between them sound more like slams. He sobbed out, pressing his forehead against Saitama’s neck as pleasure ripped through him, thrusting in more times as he came. His vents filled the room with heavy steam.
Saitama’s legs stopped shaking as Genos collapsed against him. His heavy weight more grounding than anything else to Saitama, really telling him that Genos was here. That he was just fucked so good by the only person he wanted to be close to.
“Genos… You’re perfect.” Saitama mumbled, sexed out and satisfied, happy to just let himself feel. “Stay with me forever.” He declared, cupping the back of the cyborg’s head.
Genos shifted, pushing himself up on his hands to meet Saitama’s gaze. He was smiling, looking love-struck at the proposition of a forever.
“Forever?” Genos questioned, laying his head on Saitama’s chest and gazing up at him.
Saitama grinned back, his hand running through the soft synthetic hair in slow strokes. “Yes, forever Genos.”
Genos shoved his arms underneath Saitama, squeezing him in a tight embrace and hiding his face in Saitama’s neck. “I’d love to, it’s everything I want.”
Saitama swallowed, squeezing Genos just as tight, careful to not bend or dent him. Genos was the first to pull away, sitting up and pulling out of Saitama. Saitama shivered at the feeling of being empty, sitting up with Genos. He wiped his cheek, grimacing at the fact that he had really cum on their faces.
He wasn’t expecting Genos’ tongue swiping over the spot on his cheek. “Genos!” Saitama was dark red, staring wide eyed at him.
Genos swallowed, shrugging his shoulders as he got up. “I was curious. You’re very healthy, Saitama.”
“Agh! How can you say that with a straight face!” Saitama covered his flushed cheeks, knowing exactly what his disciple meant.
“I’ll get us a wet cloth.” Genos walked off to the bathroom, thankfully not saying anything more on Saitama’s fertility. With his return he kneeled in front of Saitama, wiping his face of their activities.
“I’m glad you enjoyed yourself, Saitama.” Genos gripped Saitama’s wrist, bringing his hand up, cleaning the cum Saitama had wiped off his face. “We’ll have to test just how far you can ejaculate.”
Saitama choked, tugging his hand away as his entire skull flushed red. “You’re shameless.” He squeaked, shivering as Genos pushed him back so he could clean his goods. Saitama spread his legs, flushing as Genos looked up at him at that.
“Think about it, Sensei. This is just the first time.” Genos ran the cloth down Saitama’s stomach, gripping his hip. “There’s a lot we can do in our forever.”
Saitama felt his heart swell, stomach muscles jumping under Genos’ fingers. “Yeah… our forever.” He smiled a big cheesy grin.
Genos gave him one back, and Saitama could not help but hope he would get to see Genos smile like that more often. He would have forever to see it over and over.
After Genos cleaned himself, he laid back on top of Saitama, wedged between his legs. Head resting on Saitama’s chest as his core whirred in a peaceful hum. “Can we sleep like this, Saitama?”
Saitama ran his hand up Genos’ side, a little embarrassed that Genos wanted to sleep naked, but he did not dislike the idea entirely. His other hand ran through Genos’ hair, playing with it, twirling it gently between his fingers.
“Yeah, sleep with me every night.” Saitama heard himself say. Not sure where these demands were coming from. Was this letting himself feel? Letting himself want things.
“Gladly, Saitama.” Genos snuggled into him more.
“I love you, Genos.” Saitama kissed the top of his head, cupping the back of the Cyborg’s skull. Where the most important part of Genos resided.
Genos looked up once Saitama leaned back, staring up at him with big bright eyes.
“I love you too Saitama! To hear that you feel the same way, I want nothing more than this with you.” He said, exceeding the twenty word limit. Saitama was starting to not really mind when he did that.
“I feel the same, Genos.” Saitama murmured, flopping his head on his pillow, threading their hands together, and pulling a blanket over the both of them. “Goodnight.”
“Goodnight Saitama.” Genos relaxed against him, head resting above Saitama’s heart. A content sigh leaving the cyborg.
They both did not find any trouble in welcoming rest. Sleeping peacefully against one another in the warmth they created.
Their forever was just the beginning.