Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/5811019.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      ワンパンマン_|_One-Punch_Man
  Relationship:
      Genos/Saitama_(One-Punch_Man)
  Character:
      Genos_(One-Punch_Man), Saitama_(One-Punch_Man), Doctor_Kuseno
  Additional Tags:
      AU, Not_beta, Saitama's_POV, Chatting_and_messaging, Alternative_universe
      first_meetings, Alternative_universe_different_origins, Human!Genos,
      drunk!Saitama, Sappy, Sappy_pickled_egg, Loss_of_Virginity, Anal_Sex,
      Rimming, Accidental_engagment, Condoms, Wrote_this_when_I_was_sick, What
      Was_I_Thinking
  Series:
      Part 1 of OPM_gifting_fics
  Stats:
      Published: 2016-01-28 Chapters: 2/2 Words: 8824
****** Damn chat forums ******
by Divine_shot
Summary
     Saitama, in his early twenties, decides to join a chat forum after
     being laid off from work as a means to an end only to become besotted
     towards a blond teenager.
Notes
     First half of the gift for nicolet. I wanted to do something for all
     of the great OPM stories and keeping me motivated/helping me. Me and
     Saitama are too much alike (personality and life wise) but I don't
     have a Genos. I was originally going to do this: http://psych0-
     olll3city.tumblr.com/post/137058760227/high-school-au-where-saitama-
     is-senpai-instead-of word for word but my sick virus ridden self woke
     me up in the middle of the night and did...this. I wanted to drop it
     and several times I thought about just deleting the whole thing to
     write another piece but decided to just roll with it because I wanted
     to give nicolet something cool.
     It's a two part story (with the second part being really long) but
     all you need to know is:
     -The timeline is barely different. Saitama saves the kid the same
     year that the Mad Cyborg shows up.
     -Saitama is still Saitama. Sort of. I have no idea how to write him.
     -Genos' young ass is fifteen so this is underage all of the way.
     .....I just realized that I basically made an AU to the other story I
     wrote. ORZ.
***** Messages *****
Saitama ended up fired from another job. Again. The reason this time? He
refused to agree with his boss after he scammed a customer at the convenient
store. 'That's that.' Meager attempts at interviews and walks in resulted in
nothing, (what else did he expect?) He decided after a few weeks to go on some
chat forum that one of his co workers suggested as a joke before being laid
off. 'All of the younger kids these days and their social media.'  
Saitama opened his laptop at home one afternoon, the one that he bought during
an electronic cyber sale, to go on the website called Aspiring. 'Sounds corny
but what the hell.' Setting up his account is relatively easy. Saitama didn't
expected any friends considering the age group along with the guy to girl
ratio; scrolling around and randomly going into debates on threads until
someone messaged him privately.
'I wanted to tell you that I agree. Karate Man is ranked high tier due to
his versatility over Canary. '
Saitama smiled and almost puffed up his chest in pride that someone agreed with
him. A rarity. He decided to look at the messenger's profile in curiosity. No
age but he assumed they had to be young considering the demographic (unless
they were a pervert.) The person named Studious Student did reveal their
location, which seemed to be near his city but in the middle of nowhere. Not a
monster hot spot and sort of rural.
Saitama knew the profile picture is fake (I mean who likes Idol Kamen anymore?
Even for an avatar? The in thing is 'Don't Treat That Ganguro,') but they had
several things in common. Well as common as you can make it. Same books. Same
manga. Even similar interests.
Saitama bit his bottom lip and thought, dark eyes focused on the screen. He
opened up the message tab and wrote: 'Thanks. I see you play Alley Fighter
Five. Who do you main?'  The man didn't expect a reply back but Studious
Student gave him one a few minutes later. They discussed match ups, other video
game terms and even traded online information up until the sun vanished behind
the horizon.
This became a normal thing after Studious Student added him. They would talk in
the day up until the later half of the evening. Saitama did odd gigs here and
there but could not find another steady job.
He leaned back in his chair in front of the laptop one day, rocking it back and
forth. 'Maybe I should give up.' His teachers always called him a loser in high
school and nobody believed in him when he did the right thing. Even now his
former friends and ex girlfriends snub their noses at him. He couldn't find a
stable job and lived in a shady area of Z City with an old lady landlord. 
The message notification roused Saitama out of his dark thoughts. "Hm?" The
dark haired man leaned up and squinted his eyes at the screen. "Is something
wrong ? Do you want to talk about it?" Saitama read the words out loud.
"...What kind of an adult would I be if I sobbed my heart out to some kid
online?" Before he knew what he was doing Saitama found himself doing that. "
I lost my shitty job and now I can't find another one." 
"Hm. I assumed you were at least in high school. I guess there are older people
on these forums."
Saitama sat back, annoyance against his temples. "What's that suppose to mean?"
He snorted and smiled at the screen. "Brat." He typed exactly what he said and
laughed when his so called friend gave him a few new MMO game websites along
with several job listings. He's been bored out of his mind and alone in Z City
but now he's having the time of his life, work or not.
The two continued on every day for almost a year. Saitama didn't find out much
about Studious Student  personally outside of the fact that they're in school
and their location. The man didn't mind at all; finding their casual no
obligation conversations a balm. Too many stressful things happened, from being
snubbed and embarrassed on an interview, fighting a crab man with drawn on
nipples, to being kicked out of his old apartment for doing the right thing.
"I'm home." Saitama called out to nobody in his apartment. He shrugged and
kicking off his shoes, carrying the bags he bought from the convenient store he
used to work at to the kitchen. He put an instant meal into the microwave and
watched the timer almost lifelessly before snapping out of it. 'I better go
turn on the computer.' Saitama booted it up and after checking his email for
any job replies he went straight to the forum. 
Somehow Studious Student ended up being online at the same time. Saitama yawned
as he said hello and quickly went into the mood. They talked about the news
and the latest monthly manga until the other announced going to bed soon
because of studying exams for high school in the morning. Saitama almost choked
on his own spit and he could practically feel his black hair fall out.
'High...high school? Shit. That means that Studious is around fifteen or so.'
Saitama sweated; six years isn't bad right? "No. What the hell am I thinking.
Six years is bad!" He's twenty one for god's sake and he's talking with someone
most likely in junior high! The sound of the microwave going off sprang Saitama
up and over to the kitchen again to gather his thoughts.
'It's not wrong if we just talk right?' Saitama leaned against the counter.
'I've been doing this for a year so it's too late to back out now. I still
don't know why a person, hopefully a girl, wants to hang out with me though.'
After doing a mental rant did Saitama take out his meal and go back to the
laptop. The two talked well long after; Saitama ignoring his food until it
became stone cold.
The alarm ran out and Saitama resist curling further into his futon. As usual
he woke up at the ass crack of dawn, eating a banana before heading out in only
a track suit and gym shoes. He ran towards the Z city park; not stopping his
training regiment just because he stayed up a bit late. Going near his usual
spot, he starts working on squats first. Saitama didn't even falter when
someone sat on the bench next to him.
He could feel eyes on him and ignored them; the person probably wondering why a
loser is doing this in public. Saitama is used to it by now, focused on
achieving his goal. 'I want to be hero. I want to become something.' He grunted
and continued, only slowing down to unzip the upper part of his track suit to
let in some cool spring air. His muscles ached and he could feel his vision
wavering. 'Damn I...' Saitama tried to push himself to finish at least this off
before he fell out on the concrete ground.
Saitama isn't sure how long he laid passed out there but when he awoke again he
heard footsteps approaching. The track suit man barely raised his head to
see high top gym shoes and a boy in junior high. Blond hair, golden eyes and
sharp features that looked attractive. "Sir!" The boy's voice, clear, sound but
not broken fully into puberty yet rang against Saitama's ears as he bent down
to hand him a bottle of water.
Saitama accepted it with a cough and got up on shaky knees. He opened the cap
and forced himself to swallow the water slowly so he would not get
sick. "Thanks kid. I guess I over did it again." He stared at the student; for
some reason captivated by those golden eyes. 'Snap out of it!' Saitama mentally
slap himself when the kid caught him staring and turned away with a small blush
before speaking again.
"You're welcome. I'm glad to help someone in need Mr...?" Saitama paused, the
bottle hovering near his lips, as he watched the boy fidget nervously. "Ah
Saitama." 'I probably scared the damn kid with my perverted staring.' He didn't
know why but the boy gave him a sense of familiarity.
"I'm Genos, senpai." The senpai title from his lips did things to Saitama but
he shook it off and swallowed down another mouthful of water, mouth suddenly
dry. The name sounded fake but something told the man that it isn't.
"Well nice meeting you Genos and thanks again. I'll see if I have enough to pay
you back." Saitama rummaged in his track suit pockets to pull out his coin
purse and ended up accidentally tugging his phone out as well. "Shoot." He
reached down to pick it off of the ground to see Genos gasping and pointing in
front of him. "Are you by chance....OneTrackSuitMan?" Genos' voice cracked at
the exclamation and Saitama couldn't believe it.
"Holy...'Studious Student?!' How in the world?!" Did a higher power delight in
making his life strange and full of coincidences?! Of all of the people, he ran
into the one kid he met online for almost a whole year!
"Your phone strap. You told me that you got a new one from that one show with
the Ganguro..." Genos trailed off and pointed towards the acrylic strap of a
dark skinned girl on the side of Saitama's phone. "Maybe we should go somewhere
then?"
 
===============================================================================
 
The two went to the local family restaurant to converse more. Saitama ordered a
plate of fries but Genos went all out and got the hamburger special with a
milkshake. "Are you sure you don't want anything else senpai?" Saitama listened
to the boy speak to him after putting the menus away.
'What kind of an adult would I be if I relied on a kid to buy me food?' "No but
let me get this straight: you went to Z city park in order to study for your
exams because your siblings were doing their own thing and all." Saitama didn't
believe in coincidences but it's pretty hard to deny such a big one like this.
How else could he explain how Geno ran into him this early, in this park, on
this day?
Saitama cleared his throat and continued. "What I want to know is why are you
hanging out with an old man like me? Too bad you're not a girl with boobs. It
would have made things more interesting." The older man chuckled but spoke in
jest; he couldn't recall the last time he even tried to deal with the fairer
sex and hanging out with a guy is much easier.
The teenager frowned across from him and Saitama found himself sweating,
thinking the joke didn't work out so well. "You are...six years older than me
correct?" He raised his head, golden eyes intense. "That is not a big age gap
senpai. You are hardly an old man unless you are talking about something else."
'Cheeky brat.' Saitama thanked the higher powers when the food did arrive. Much
to the older man's embarrassment Genos shared his meal with him. People
whispered and giggled when the teen held up his fork of steak meat and
vegetables towards him. Saitama accepted it with a heated blush and just told
Genos to pile his portions on his plate if he insisted.
Genos had free time and wanted to hang out with the man to Saitama's surprise
so they went to karaoke afterwards. Genos singing horribly off key and Saitama
only knowing the lyrics to random anime openings. They laughed after they tried
to sing a duet for Rinbu Revolution. The teen's next suggestion to the arcade
ended up with the older man frustrated but amused from spending a good deal of
yen on the crane games to get the boy a robot rabbit plush. Only for Genos to
win it effortlessly.
Saitama found himself enjoying the day for a change. He couldn't recall goofing
off and feeling giddy like this. 'Hell have I ever?' The black haired man
thought back and shrugged his shoulders when he couldn't really remember a
time.
"I had a really good time OneTrackSuitMan." Genos gave him all smiles as
Saitama walked him to the train station back to his home. The two stood there
not really knowing what to do; the older man rubbing the back of his head. If
it was a girl he would have kissed her on the cheek but this is a boy... "Oh
wait." Genos' sudden exclamation startled Saitama, not that he would admit it.
"Let's exchange numbers before we part."
"Oh yeah. It would be easier to talk that way instead of on the forums."
Saitama fumbled around with his flip phone but managed to exchange his phone
number with the teenager. Giving him a small wave, they parted and Saitama
found himself humming all the way back to his apartment. 'I want to meet again
but I don't want to tell the kid that.'
===============================================================================
 
Saitama found himself longing to talk to Genos or do anything than deal with
the dull, mundane events current in his life. They eventually agreed through a
series of text messages to met each other in Genos' hometown. The boy sent him
a really detailed map and the older man tried to follow it through and through
but found himself getting a headache at the redundancy of words. 'Why doesn't
he sum up some of this crap in twenty words or less?!'
It took a good hour but Saitama finally reached Genos' hometown. The teenager
waved at him from the station, wearing only a pair of overalls along with hi
tops. His blond haired looked tossed, making the teenager look like a wild boy
and in his element. 'He's not wearing anything under that?!' He swallowed and
forced himself to met the sunny face of the teenager approaching him.
"Senpai did you have any issues?" Genos rocked back and forth on his heels,
full of energy, and Saitama found himself once again gyrating in the same orbit
as the teenager. He smiled slowly and gave him a serious look.
"No issues but next time don't make it so wordy! Summarize it!" Saitama ruffled
Genos' hair to take off some of the tension (both good and bad.) The blond only
rolled his eyes and guided him around.
Genos gave him the grand tour, showing off the peaches along with raspberries
that the town is known for. "I'm going to a school in Y city that's paid by
scholarship but they told me that I'm too smart for it." He put his hands into
his pants pockets and shrugged. "I'm not sure what else to do in the meantime
senpai."
"I'm not sure either kid. That's something that you have to figure out."
Saitama felt a sense of pride that Genos wouldn't go through the same crap he
did in life. He hoped he could settle down with a nice person and maybe get a
good job to help out his town and family back home.
A suddenly crash alerted them and they both watched as a giant machine seemed
to fall out of the sky. It looked humanoid but sparked with electricity like a
broken down toy. All of Saitama's danger senses screamed and he pulled Genos to
the side to barely avoid the blast. Saitama ignored the boy's cry. Using all of
his strength he picked up Genos like a sack of rice under his arm and ran the
opposite direction of the town. 
The machine followed them, blasting anything that obscured its path into ashes.
'I wonder can I defeat this thing?' He beat that crab monster no problem along
with a few other creatures and those thug guys right? Saitama weighted the pros
and cons of fighting a robot until he heard another voice. "Over here!" An old
man called out to them near a group of trees.
When they got a closer look he noticed that the old man had a mushroom like
hair style. Normally Saitama would have joked about it but not now. Instead he
ran over as quickly as he can and hide behind a group of bushes. "My name is
Doctor Kuseno and that machine is a rampaging cyborg. Long story but I'm going
to attempt to deactivate it but need a distraction."
Saitama put down the teenager on the grass and nodded his head; determined look
on his face. "I'll do it." 'If I don't the thing will just go to Genos'
hometown or another place and wreak it.' He ignored Genos' angry protests and
turned towards the teenager. Leaning down slightly and raising his hair up, he
kissed him on the forehead. Genos paused, blushing down to his ear tips.
"That's if I don't make it."
"No! Don't Saitama!" Saitama wanted to smile at the fact that the teen called
him by his actual name instead of senpai. Instead he ran towards the searching
machine, which sparked and groaned when it spotted him. Target acquired._Begin
process_of_elimination.
Saitama dodged another laser blast and balled up his fist. Focused, he punch
the cyborg right in it's metal weapon arm. The thing broke much like wet paper
and Saitama found himself staring at the broken part along with the gaping
wiring that used to be an arm, "Holy...I did that?" Saitama never tested his
power recently but he didn't think he had the ability to one punch anything
clear off.
The cyborg seemed shocked as well, humming and clicking as it stared down at
it's missing appendage. A noise, like a plane about to take off, rang out
before the cyborg jumped into the air and flew away. Saitama watched it go, his
hand smoking slightly but not really in pain. "Wait if I could do that then
that means...dammit!" Saitama punched the ground in frustration; creating a
creator. 
Doctor Kuseno along with Genos appeared before him and Saitama peered up at
them. Instead of being scared Genos looked angry and the doctor seemed
interested. "I'm going to attempt to track the berserk mad cyborg again. Sadly
my good man you blasted away the device that I put on the machine so I have to
start from square one." He nodded his head. "The good thing is no hard done to
you so keep that in mind."
Saitama sighed; wishing he blew up the damn thing if he knew he had that much
power. 'At least the town is safe.' The track suit man looked at the brighter
side of things instead of wallowing in the what if's.
Genos talked to Doctor Kuseno in private, about what Saitama had no idea, and
even waved the man off after accepting his business card. He turned towards
Saitama and the man waited for the punch or the rant until he felt arms go
around his neck. "I'm glad you are ok." The teenager buried his face into his
shoulder. "I'm so glad."
Saitama smiled and patted Genos on the back. They stayed like that for a while,
being close until Genos parted in silence. Saitama sighed and decided to head
back towards Z city.
***** Things happened *****
Chapter Notes
See the end of the chapter for notes
Things remained tense long after the attack. Saitama still talked with Genos
but the conversations were short and eventually the teenager took a week off to
do his entrance exams. The black haired man managed to find a job in accounting
then, the days passing by quickly. A few women flirted with him at work but he
couldn't stomach the idea of dating let alone touching them.
'What's wrong with me?' Thoughts of the blond made him grumpy and in his
opinion cockblock him from scoring. 'Genos is probably doing his own thing in
high school. Found a nice girlfriend and friends. Why would he want to hang out
with a twenty something year old like me?'
The words left a bitter taste in Saitama's mouth and he cursed as he stared at
the homepage screen to Aspiring for the umpteenth time; seeing Studious Student
offline. 'What the hell am I doing?' He decides then and there to go on with
his life. Two weeks turn into three and Saitama finds himself working
efficiently but a void that can't be filled is in his heart. Which is why one
day when his co workers ask him if he wants to hang out at the local bar he
joins them.
"Whoa! Saitama-san you're really putting down that beer!" Saitama laughs as he
lets out a satisfied sigh after downing his fourth glass of frothy booze. Eight
people not including himself went to the local establishment in Z City. Alcohol
flowed freely, yakitori along with fried chicken and snacks were passed around,
and everyone spoke without restrictions.
Saitama hiccuped. 'Who...who cares about Genos!' He reached over and picked up
some pipping hot liver skewer meat, eating it straight off of the stick.
"Stupid...probably has someone in the bed." The meat barely burned his mouth as
he rushed and ate it, the taste not registering on his tongue, like eating
sandpaper or mothballs. He didn't have much of an appetite but needed a
distraction.
"Hahaha Saitama-san! Did you end up getting dumped by your girlfriend? Is that
why you're drinking yourself away? You sound like..." One of his female co-
workers (the one that used to flirt with him before he turned her down,)
rambled off the tale of someone's woes. Said person laughed and tried to get
her to shut up. It all sounded like white noise to Saitama as he sipped on
another tall glass of beer.
The black haired man reached over to get more food when he saw the tamagoyaki.
The sweet yellow egg reminded him of Genos', especially his eyes. 'Genos...'
His torn face after the cyborg's attempted attack, the smell of fruit along
with male musk when he hugged Saitama, the kiss he gave him when he risked his
life to save his town. No matter what he did he couldn't stop thinking about
him. 
Realization made Saitama queasy and he paled; holding his mouth. "Saitama-san!
Go to a toilet if you are sick! Guys get him out of here!"
 
===============================================================================
 
Saitama hiccuped and rubbed a hand through his hair, not surprised to see
strands fall out from the action. His co workers nice enough to get a cab to
drive him mostly towards home but nobody will go to the abandon part where he
lived so Saitama walked the rest of the way home. Shoe missing, shirt out of
his pants and mostly drunk. Thankfully he didn't run into any monsters because
he wanted to just crash on the futon and forget the night away.
'Shit.' Saitama trudged up the stairs as if he walked through quicksand. 'Did I
lose my keys?' He rummaged through his pockets and cursed when he couldn't find
them. Reaching near his door, he squinted when a familiar boy wearing a white
pristine shirt, black tie, and pressed black pants sitting seiza stlye against
the door appearing in his vision. "GENOS!" 
Genos jumped to his feet quickly. He still looked the same to Saitama but did
he grow a bit taller? 'I don't know but he's here!' "Senpai! It's almost three
in the morning! I was worried when you never replied back from my texts and
something happened-OOF!" The social worker didn't give him a chance and tackles
him in a hug. He sighed and snuggles into the musky fruity scent that he missed
from before.
"Genos I missed you. I can't stop...thinking about you." Saitama runs most of
the words together and slurs some. "You're so pretty. I'm not into dudes but
your blond hair, your angelic face, you can pull off as an otoko...otoko...a
trappy girl!"
"Saitama-senpai..." Genos' voice held confusion but Saitama is too far gone to
really notice it, slipping further down on his hold and face pressing into the
teenager's stomach. The action causes Genos to sit down outside of Saitama's
door once more. They stay there for a while until the older man opens his mouth
again.
"I was so lonely. I lived by myself for years. It felt like I was dead inside
and nothing was being accomplished. All my friends are...were jerks too. But
when you talked to me it felt like a light switch of emotions. I had so much
fun and loved talking again. Shit I'm talking too much now." Saitama giggled
and raised his head to give Genos a big, flushed smile. "I like you Genos."
Genos blushed and shook his head as if he's denying the man. "Senpai you are
drunk." Saitama pouted and shook his head at the teen's response. "No! Nu-uh!
I'm not that....drunk. Genos stay with me please?" He sighed and buried his
face in Genos' uniform shirt, the low from the alcohol getting to him.  "Don't
leave. I can't take it. I'm strong but I don't want to go back to being an
empty man. Strength means nothing if I feel nothing."
"...Senpai." Genos seems to sigh. "What about our age gap? You seemed to bring
that up constantly. I assumed it is an issue-"
"No." Saitama cuts him off. He groans at the fact that his face has sunk into
the boy's lap and he can smell the musk of something entirely different but
appealing. "I don't personally care. I didn't... don't want to take advantage
of you. So I used that as an excuse to distance us but it didn't work! Shit I'm
infatuated with a teenager! In love with a damn kid! I never felt...this way
before."
"Senpai maybe you should go inside and rest." Genos tells him in a calm but
stern voice. Trying to be the voice of reason that Saitama no longer had. He
started to pull him towards and up but Saitama giggled again as a lewd plan
formed. He squeezed the boy's behind; feeling the squishy globs behind his
fingers along with the small squeak.
"Come inside with me."
 
===============================================================================
 
"Ngh!"
Saitama barely made it in the opened door to his apartment as he kissed and
rubbed Genos everywhere. He had enough sense to chew on the gum he stashed in
his pockets before he started making out. 
"Sen...pai!" Genos moaned as Saitama sucked and nibbled along his neckline,
drawing the skin into his mouth. The boy tasted better than he thought. The
chaste kiss he gave him before fighting the mad cyborg is nothing like this.
He attempted to kick off his lone shoe as well as cup Genos' crotch behind his
school pants. The teenager groaned and Saitama laughed into his neck as he felt
the member grow harder against his fingers. He wasn't into men but he sure was
into Genos.
One weak in the knees and the other not one hundred percent sober, they crashed
on the floor. Genos groaned but Saitama, quick on his feet, straddled the teen.
"You're...ok right?" He spoke in a low whisper, undoing his tie from his work
shirt. 
"I'm ok senpai but are you sure you want this?" Genos looked at him with wide
amazed eyes. The gaze spurred the black haired man on further; he wanted to
soil this boy. He wanted to get down and dirty.
Saitama laughed, leaning in so that their groins rested together. "I'm fine.
Let's fuck." He popped the last two consonants, making the older man laugh at
himself. 'I guess...I am a bit drunk. Who cares though.'
The black haired man grind a bit on top, closing his eyes as his cock slid back
and forth behind the friction of his work pants. A sudden idea made him stop
and Saitama slowly parted from the teenager to go eye level to the boy's
crotch. He tugged down the teen's pants, tongue sticking out, with a few tries.
Dicks didn't appeal to him but seeing Genos' straining against black boxer
briefs made his own pulse.
Saitama leaned his head down and pressed his teeth against the waistband of the
teen's underpants; pulling them down with his mouth. A tan colored cock smacked
him against the face and Saitama grumbled as it hit his eye. 'Ow.' He raised a
hand up and glanced at Genos' worried stare. "I'm ok."
"There it is. Genos' cock." Saitama laughed breathlessly and gave the length
one long lick. The teenager under him whined and buckled but Saitama put his
hands on his hips as his tongue curled around. 'It taste weird like skin. What
did I expect?' A bead of liquid dribbled out and pooled down, which he lapped
up. 
'Oh.' The different taste flooded Saitama's mouth and settled nicely on his
tongue. Salty with a hint of sweetness. Saitama pulled back enough to stare in
drunken astonishment. 'I want more.' He opened his mouth really wide and
swallowed a good portion of Genos' cock in his mouth. Thankfully his hands
remain on their hold because the teen covered his face and arched up at the
sudden movement.
"Senpai...Senpai!" Genos' words spurred him on. He never sucked a dick before
but he knew what felt good and what didn't. The boy seemed to have similar weak
spots as Saitama licked near the slit and along the underside. He bobbed his
head up and down, eyes closed in concentration as he swallowed the bitter sweet
fluid that flowed down his throat.
Fingers touched his hair and Saitama felt Genos pet and play with the strands.
"Mmmmm." He hummed his appreciation, which caused the blond to whine in a cute
voice and the cock to twitch in his mouth. "Please senpai." Saitama would had
laughed if his mouth isn't full.
The black haired man sucked faster, pulling his cheeks in and swallowing as
much as he can before he started gagging. 'Shit I haven't been this hard in a
while.' Saitama thought about pulling himself out of his pants to jerk off
until Genos groaned low in his throat and cried out, "Saitama!" like a tightly
wound coil, fingers pulling into the older man's hair. The sight better than
any damn porno he ever seen.
A flood of liquid poured into Saitama's mouth so quickly that he had to pull
back and off; coughing and choking. "Ugh!" He didn't dislike the taste, no, he
just wasn't prepared for it. "Gross." The man moaned as the rest of it oozed
out and spread on his forehead and hair. He grimaced as he patted his chest to
get the rest of it down the right pipe. 'How the hell do people do this?'
"Are you alright senpai?!" Genos' worried voiced reached his ears and Saitama
decided to play it cool. "I'm fine. It tasted so good that I got greedy!" He
laughed when Genos blushed redder than a lobster.
Saitama licked his lips slowly, tracing the remnants of the teen's essence. He
didn't lie about it tasting good to him. 'I kind of want more.' He shifted back
between the boy's legs and raised them on his shoulders. With the new position,
Saitama went down and trailed his tongue under the boy's scrotum. Genos made a
noise of protest but Saitama continued his path until he he reached his
destination.
"Sen-pai what are you doing?" Genos' voice broke as the older man wiggled and
push his tongue past the ring of muscle. Genos tasted weird here, not bad but
really earthy. 'Sort of like mushrooms.' He curled his tongue further, trying
to relax him for the next part.
He never did anal before but wanted it to feel good as best as he could. When
the boy no longer felt like he would squeeze off his tongue and actually
started to grind against his mouth did Saitama deem him ready. He was going to
cream in his pants anyway if he kept it up. He may have monstrous strength but
he's still a human dammit.
The black haired male parted with a trail of saliva, the only evidence from
what he did. He spared a glance up to see Genos a shaking mess, hands clinching
in his hair, white pristine shirt sticking to his body, and his teeth biting
his bottom lip so hard that it might bleed.
It was both memorizing and tantalizing to the point that Saitama swallowed
deeply and adjusted his pants to stop himself from coming in them. "...I want
you to go lay out the futon, take the rest of your clothes off, and get on all
fours. You think you can do that?" Genos blinked once, then twice but nodded
his head as he complied in almost slow motion.
It took a lot but Saitama managed to stumble his way over to the compartment
under his television and pulled out a tube of lubrication and some condoms.
'It's been a while but the date's still good?' He squints as a weak attempt to
help his blurred vision scan the expiration. 'I think.' Once he figures out his
barrings and gets checked out he might stop using them. The thought of filling
up Genos with his own come, marking him from the inside out makes his mouth
water. 'Next time.' Saitama hiccups and laughs.
Saitama approaches Genos again, who is already on his hands and knees. He just
stares at the blond, taking in the fact that this is real. Saitama breathes at
the tan skin is spread out before him on his heart pattern comforter.  The boy
is fully naked, peering at him over his shoulder, body shaking but cock half
hard and hanging down. Saitama goes behinds him and rubs a hand against the
teen's behind. "You never done this with anyone?"
"No senpai." Genos shakes his head and faces his head foward. Saitama watches
the action as if in slow motion and snaps open the cap to the lube with his
left thumb. He spreads it on his right hand before reaching down and pressing
one finger against the pink puckered ring before deluging inside. Genos tenses
up again, head jerking up and Saitama talks to him as a distraction. "So you
never jacked off either?"
"I...I never had time!" Genos croaks out in a broken voice. "Between studies
and my siblings I...I...can barely-" The teenager squeezes the sheets of the
futon under his hands. Saitama adds two, then three, the motion of preparation
coming to him easy like riding a bike. He almost stops at the next confessed
words. "-I rarely did until I met you senpai." Saitama's heart jumps and he
blushes outside of the drunken flush.
'Damn.' Saitama's ears are burning now but he continues to pump three fingers
in and out, watching the greedy hole spread wide and Genos starting to rock
back and forth on his heels. He pulls them out, enjoying how the teen whines at
the loss. The older man throws the lubrication tube to the side and attempts to
open up the condom wrapper, using his teeth when his sticky inebriate fingers
couldn't do the job. Too turned on to remove his pants, Saitama just unzips
them far enough to roll the condom over his aching hard, reddish head dripping
cock.
He positioned himself, straddling Genos and putting on hand on his hip in
warning, before sliding in one thrust. The teenager gasps under him and it
takes a lot for Saitama to not put all of his weight on the kid's back and
pound him into the futon. "Shit. You're warm. Hot. Tighter than any woman I've
been with." He pauses as he hears Genos breath in shallowly, body shaking.
"Focus on my voice and relax. I won't move yet."
"Senpai." Genos' breathless voice is like music to his ears. Saitama shifts
positions so that he's resting his chest against Genos' back but not putting
his whole weight against him. His left hand goes on top of the teen's and
grasps it while the other uses his futon as leverage. Once his breathing evened
out and his shoulders stopped shaking did the black hair man thrust shallowly,
testing the waters.
'Mmmm...good.' Saitama licked along the back of Genos' neck, tasting sweat. The
teen buried his face into the comforter, trying to push back into the older man
with his hips. His blond hair drooped and small pants of breath pushed out of
his lips. A sudden brush against a certain spot caused Genos to squeeze against
his cock almost painfully hard and to yell out. "Ugh! Saitama senpai!"
Saitama laughed breathlessly from the response, his hair getting into his face.
"Sweet Genos. Get used to this." He picked up the pace, balls slapping and hips
smashing into the teenager's behind "'Cause I'm going to be doing it a lot."
The older man buried his nose into the blond hair, smelling that fruit, musk
even over the smell of sweat and sex. "I wanted you since I first laid eyes on
you, when you gave me that water bottle. I kept thinking after you told me your
username when I was alone, 'I would love to fuck this cheeky brat.'"
Genos trembled like a leaf now, his body barely supporting him as Saitama
brushed against that one spot and stroked pleasurable nerves. The half drunk
black haired man knew he wouldn't last that long at this rate so he tried to
get the teenager off first at least. A low muffled word, obscured by the futon,
barely reached Saitama's ears. "Repeat that. Come on." He heard it again and
squeezed Genos' hand in encouragement.
Like a dam breaking the blond teen raised his head to yell, "Saitama! Please!
I...I like you!" That did it for the other male and he groaned loudly as he
came inside of the condom. Not wanting to leave his partner behind, Saitama
used his dirty right hand to go between then and stroke the teen's cock. Only a
few pulls resulted in another scream of his name and streams of come all over
his futon.
Saitama wanted to pass out after all of that but he had enough sense to pull
out and at least take the condom off. He barely reacted at the squishy wet
noise it made coming off and tied it before putting it to the side somewhere.
"Senpai..." The older man hummed and yawned; accepting Genos' body in his arms
before the weight of alcohol made him crash in a deep sleep.
 
===============================================================================
 
The rest of morning is mostly a blur to the former daily social worker. He
recalled sleeping in with Genos, missing work, (which meant that he's most
likely fired again) and the boy giving him a messy, sloppy blowjob. 'Shit.'
Saitama's cock twitched at the memory of waking up to see Genos in between his
legs. Trying to stuff most of it in his blessed small mouth, the girth pressing
against his cheeks and plush lips, his tongue curling against the width and the
foreskin- 
"Stop it." Saitama slapped his cheeks together to get himself to focus. Genos
left for class hours ago which gave Saitama a ton of time to go over the speech
to give to the boy. He had to deny him no matter how much he wanted to be with
him. The blond is a minor by Z city's standards and the last thing Saitama
needs is to go to jail and branded a pervert. A small voice inside of him
reasoned when did he ever care what society thought but he ignored that.
'Shit. I don't want to dump the kid but I have no idea how we can be together.
The sex is pretty good too but that's the least of my worries. If anyone finds
out about what we did..." A knock on the door made Saitama almost jump in the
air. He hit his chest a few times until his breathing went back to normal
before going up to the entrance way. The older man didn't bother to put on
anything but the top and bottoms to his tracksuit; too hungover and worried to
care.
Genos stood there and for the first time in a long time Saitama is shell
shocked. The teen wore a blue sleeveless sweatshirt hoodie with a matching pair
of jeans as well as those high tops. On his back is a massive back pack almost
three sizes bigger than him. Saitama knew he wasn't going to like the outcome
to this; regardless he invited the youth inside. "Come on Genos. I'll make some
tea."
The track suit man went towards the kitchen as Genos dropped his bag in the
door. He went through the cabinets and managed to scrounge up green tea leaves
that are still good. He put the kettle on and joined the teenager at his table.
The boy sat in his usual seiza style, determination in his eyes. "I went back
home after class and told my parents along with my siblings everything that
transpired."
Saitama paled at the bombshell and his voice raised at the next words. "Why!
Don't you know what remains in this room stays in this room!" Saitama had to be
the calm rational adult but it became really hard the more he hung around the
teenager. 'This damn kid is bringing out the worse in me!'
Genos ignored him and continued, golden eyes stern and hands on his thighs. "My
parents said it is fine to live with you and get married." At Saitama's shocked
confusion the teen explained as simply as possible without going into heavy
details. "The laws in my town are different. You can get married as early as
thirteen, especially if one party is a virgin."
Saitama pondered the words once then twice. "Haaaaa?" He started to sweat.
'Shit. Shit. Shit. Not only did I have sex with a minor but took Genos'
virginity. If I had better sense and didn't get drunk then I would have treated
him better than I did and-What the hell that's the least of my worries!' His
eyes barely revealed his panic but his voice spoke volumes. "Are you saying we
are engaged? Like'engaged to be married?!'"
Genos sighed and turned his head away, blushing. When he met the other man's
eyes again Saitama found himself swallowing his suddenly dry throat. "Yes so
please treat me good Saitama. I'm in your hands." At Genos speaking his name,
Saitama found his cock saying hello again and wanted to one punch himself in
the face.
 
===============================================================================
 
Saitama wanted to delay it but he went with Genos to met the in laws wearing
one of his interview suits. It took a few grueling hours on train but they
managed to go back to the small market rural town; standing in front of an old
fashion foreign wood house with a metal knocker. "This is your place?" Genos
shrugged but nodded his head slowly. "It's unconventional but yes this is my
house." The teenager pulled out a key but the door opened on it's own,
revealing a man that looked similar to Genos facial wise but had brown hair and
brown eyes.
"I'm so sorry!" Saitama bowed instantly when he caught wind of the father. If
Genos didn't stand there the man would go all the way down to the ground. "I'm
so sorry that I defiled your son! I wasn't thinking straight! Please forgive
me!" Another person (the mother?) joined them at the door and the man he
assumed to be Genos' father laughed joyous. "Come on in son, or should I say
son in law. We have a lot to talk about."
Ushered inside, Saitama sat down on a chocolate brown sofa chair with the
parents across from him on a similar looking couch. Genos vanished somewhere,
to 'get snacks' as the mother informed him. The older man now knew where Genos
got his coloring from; his mother's golden hair and pretty golden eyes shining
with mirth. A low noise alerted Saitama and he glanced to see two children on
the stairs case.
A boy that he assumed to be Genos' brother glared at him with the rage of seven
hells with his darker, almost orange rust colored eyes. A girl, barely younger
and wearing overalls with brown hair and eyes giggled and pointed at him.
"Son..." Genos father's voice brought Saitama back towards him and his wife.
"Genos told us that you are the man that seduced him and took him."
Saitama winced at how blunt the man said it. "Not exactly sir. We met online
and accidentally ran into each other in Z city. After that we hung around each
other, platonic of course!" The former track suit man coughed and steeled
himself at the next part. "One time after work I was slightly...intoxicated and
things escalated. I did not mean to take your son sir." The words 'yet'
weighted on his tongue but he refused to say that.
The father looked at him, fingers flexing, and Saitama waited. And waited.
Until Genos came back with the 'snacks.' "Mother. Father. Please do not treat
Saitama senpai like this. You are going to give him a heart attack at his early
age." A pitcher of homemade sweet tea along with raspberry sweet crispy cakes
placed on the table between them. Genos picked up one of the crispy cakes and
sat next to Saitama, who is utterly confused on the ambiance. 
"How old are you son?" Genos' father spoke again and Saitama replied without
missing a beat. "I just made Twenty two. I'm not that old sir."
"Twenty two...around six years or so then? From what Gena told me you were a
lot older to the point of being a sugar daddy." Genos choked on his snack and
Saitama patted him on the back. The older man assumed that 'Gena' is the one
sending curses and hate towards him on the stairs.
Saitama waved his hand in protest. "I'm hardly a sugar daddy! I don't make that
much money!" At the father's look Saitama realized that's the wrong thing to
say. 'Shit.' "I do have a place to live and I can provide anything Genos needs!
I live in Z city so he can visit back home any time!"
The father narrowed his eyes and Saitama sweated. He braced himself until
Genos' mother slapped her husband on the arm, sending him into an uproar of
laughter. "Hahaha! I'm sorry son! I couldn't help myself to give you the third
degree!" Saitama looked at the couple in confusion, then at Genos who seemed to
be calmly drinking a cup of sweet team now.
"I'm sorry sir but what is going on?" Saitama asked. The father must have
noticed because he started to explain, still laughing. "Genos told me about
your personality and how you are the man that saved us from the Mad Cyborg.
Doctor Kuseno back up Genos' story so we know your good deeds. You coming into
the family is what we consider a blessing in this town. You are practically a
hero here!"
"Say what?" Saitama blinked, eyes in their wide look. Did his luck change
overnight? People praised him? Genos' parents like him? "Are you sure sir? I
mean I met your son online, I'm am six years older than him and you barely know
me. Plus I'm a man!" The father only laughed harder at his response and Saitama
wondered did the fates smile on him this day or what. He didn't find it bad
just eerie.
"Son, you seem like a good person. You did not come to us for money, you came
to see us in person instead of just dropping off my son and vanishing, and
you're honest. I like all of that in a man." The father nodded his head,
considering the matter closed. The mother decided to speak next, her voice soft
but blunt that reminded Saitama of Genos. "We don't mind that our son Genos is
into men. We support any decision he makes as long as it is the right one. I
like you so far. Gena...doesn't but that's another matter altogether."
She gave Saitama a wiry smile. "I'm glad that you are a honest man because in
this town, if someone is taken by another person that's older than them and
they leave without accepting responsibility the whole town goes after them. We
also make sure to track the person's whereabouts, habits, lives, and what not.
You pass the test but we will we watching. Saving the town is only an added
bonus to our family's representation."
Saitama couldn't believe that Genos' mother indirectly threaten him if he did
anything wrong. 'No wonder Genos is the way he is.' He let out all of the
tension he held and sat back fully on the couch. "May I have a snack?" The
mother nodded and the four of them talked about other things not related to the
matter of marriage until a booming voice broke out. "I REFUSE to accept this
man in our family! He may sway the both of you but not me!"
"Gena..." Genos' mother sighed in exasperation. The boy named 'Gena,' who
looked a few years older than Genos, glared and pointed a finger at Saitama.
"This man took away my Nii-chan! He was a pure good boy until he defiled him
with his disgusting sperm!"
"Gena!" The parents shouted and Saitama groaned and sunk into the couch. Genos'
sister, nicknamed Aga, smarted off and added onto the fire by saying, "Hehehe
Aniki sure grabbed a loser!" The older man only covered his face as the family
argued among themselves.
They ended up being wed that evening in town. Saitama rushed around all over
the place to eventually be pushed into a rented tuxedo and presented in front
of everyone seated in the town square like a show horse. He wanted to go home
already until he seen Genos walk down the isle wearing a white tuxedo along
with matching white shoes, hair pushed back; a banquet of lilies in his hands.
'Whoa.' The older man stared at the teenager, amazed at how handsome he looked.
"I...Saitama senpai do I look ok?" Genos gave him an apprehensive gaze,
brushing a few blond strands back to reveal earrings. Saitama couldn't help but
nod his head. The two of them turned towards the alter even as Genos' mother
sobbed near the front and Gena made his protests. It only lasted one hour
before they were shipped back to Z city just like that.
 
===============================================================================
 
Things continued on, with Saitama doing his usual training to become a hero and
Genos going to high school from his apartment. From what the boy told him he
also worked as an apprentice with Doctor Kuseno after classes learning
robotics; towards his own life goals and to find the mad cyborg. 'Good. He
needs to release some of that brain of his somewhere.' Genos is a smart boy and
Saitama hated to see it be wasted.
Despite their weird schedules they made it work. They would cook, go to the
market and do plenty of other things (besides have good sex.) Hell Saitama even
thrilled on the fact that Genos cleaned well due to having a sister and brother
at home. 'A perfect...housewife? My housewife?' The older man pressed his lips
together at the realization. He sighed and relented. 'Yes Genos is my
housewife.'
One day when Genos made it home after a long day of class and internship work
did Saitama show him the news near the doorway. "Look Genos!" The teenager
stood there for several seconds; gauging and processing the information of his
husband's look before finally saying: "Senpai...you're bald." 
"Yeah. Do you like it? It's not like I shaved it all off on purpose." Saitama
grimaced; not really sure how his wife would react on it. He recalled how Genos
would rub his hands through his hair after they made love or just play with it
in general. 'No the worse thing is that it makes me look older. I'm in my
twenties and bald like those old men at the market place.'
Genos gave him a look that revealed nothing. "Saitama is my Saitama even if you
lose all of your hair." Saitama felt touched at Genos' words and gained a pep
in his step. "But if you like, Doctor Kuseno could probably give you a wig or
hair extensions. Oh!" Genos' golden eyes lit up and Saitama sweated at the
excited starry eyed look he never seen on his wife's face before. "Maybe you
can have long hair like Idol-"
"Enough!"
Chapter End Notes
     The brother is based on http://miyajimamizy.tumblr.com/post/
     135644734653/headcanon-genos-had-a-beautiful-older-brother
     Aga's full name is actually Agatha, which is suppose to be Greek for
     good.
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