Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/2223585.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Free!
  Relationship:
      Matsuoka_Rin/Nitori_Aiichirou
  Character:
      Nitori_Aiichirou, Matsuoka_Rin
  Additional Tags:
      Teacher/Student, small_tension, Attempt_at_Humor, Secrets, secret
      blowjob, blowjob, Hand_Job, Anal_Sex, Smut, fluff?, Sex, Boys'_Love, tags
      are_awful, I_don't_know_what_else_to_tag
  Stats:
      Published: 2014-09-01 Words: 3696
****** Extended Physical Education ******
by Incertitude
Summary
     Nitori gets some extra credits in P.E.
Notes
     oh my god I'm a terrible person. I have stories to update and I write
     this! It was a quickie story I felt the urge to do, haha I'm sorry
     Don't look at me ;-; i'm trash
     But I didn't edit so please point my mistakes out if I have any
     Thanks for reading perverts!! Loveee
For the last class of the school day Nitori head straight to the change rooms
avoiding the people who crossed into his way, he stripped from his uniform
clothes to his shorts and tee quickly, since it has been in his daily routine
he was very fast, he even stopped running into a stall to hide his body from
the other classmates. Not like they'd care.
Digging around in his bag he pulled his sports water bottle filled with water
he got at a hallway fountain; the only one that haschilled water. On his way
out of the change room his slightly taller friend came throwing an arm over
Nitori's shoulder bringing him closer as they walked, "damn, we have a fine ass
teacher. Only reason I show up for Physical Education," he clicked his tongue.
Nitori blushed and looked over at him, "Ken! Don't say that!" He was
embarrassed to hear that though he should be used to it from being his friend
for so long.
"Whyy nooot?" Ken whined as he gave Nitori a whole body shake or two, "that's
the only reason you're here too right?" he had a smug look about it.
The blush deepened now the boy pulled away but did it too harshly ending up
losing his balance running straight into someone else. Nitori exclaimed trying
to back up to Ken now but larger hands took hold of his shoulders.
"Whoa! Sorry Nitori," the older was just as surprised.
The younger boy stammered "no-no, I'm sorry... Sensei," he hugged the water
bottle against his chest as he regained his spot next to Ken.
Being betraying to the boy again Ken ran away after spotting their other
friend.
Nitori wanted to be the one whining now but instead he just stared up at his
maroon haired teacher awkwardly.
His glossy hair was pulled back into a ponytail though some hairs strayed over
his face actually adding to his attractiveness, his jaw very sharp as the rest
of him was, he was also wearing his white track suit today. Nitori's
favorite. Matsuoka is a teacher widely known for being so attractive, girls and
even some guys want his attention. Nitori nervously glanced over at Ken who was
goofing off as usual.
Ken punched their friends' shoulder playfully holding a volley ball to his
chest, he found it rolling around the gym so he just took it, "you dating my
ex?" He leaned in with a smile.
"Huh?" the friend stared suspiciously.
"How my pussy taste?" Ken cracked up before their dark hair friend punched his
side.
"Idiot!" the other stormed off.
Nitori couldn't help but snicker a little, it was a joke Ken found online but
he found great amusement using it on his circle of male friends. Rin on the
other hand watched Nitori, at first he was watching his smile and the small
shake as he laughed but then his eyes lowered taking in the sight of his smooth
toning legs, the shorts making it so if Nitori bent over his plump ass would
start to show even getting a view of his underwear.
When Nitori looked back he snapped up clearing his throat.
Nitori was confused but didn't ask anything as Rin shouted for the class to
gather.
---
After running laps around the field to raise their heart rate they began
playing soccer in which Nitori's friends excelled in except Nitori, they all
went to the change rooms sweaty and dirty. But, as the room got more crowded
with laughing classmates Nitori stayed out taking a seat on the bench with a
relieved sigh; his legs felt like led, they felt shaky and sore feeling double
his weight. He was a healthy 15 year old but he over did it trying to keep up
and make his teacher proud of his forced progress.
He had lost time while he closed his eyes leaning back against the wall
relaxing, Ken came out dressed and nudged the boy on the bench, "why are you
still here? You didn't even change yet."
Nitori's eyes snapped open mildly surprised,"oh," he leaned forward but was
interrupted before he started to talk.
"He's staying behind," their P.E teacher walked up to them, "I need to discuss
something with him."
Ken stared at him longer before looking at his smaller friend, a toothy smile
grew as he backed away, once behind Rin he put two thumbs up then started to
hump the air making blush grow on Nitori's face. When the confused Rin turned
around Ken instantaneously stopped and started running away, "call me later
Nitori!!"
And just like that he had left the two behind.
Nitori rose to his feet after the last of the students left, "what do you need
to talk about, Matsuoka-sensei?"
The older stared quietly at the youngers' mussed hair, his clothes and pale
toned skin having dirt smudges and grass stains even, he tried hard this class.
That was obvious. 
"Just, something important I've been meaning to talk to you about for a while,
come to my office," he nodded his head and turned walking down the side of the
gymnasium with his student following behind him, quickly enough they walked
into Rin's small room of an office, as soon as they both were in Rin shut the
door refraining from locking it not wanting to startle the boy.
"Sensei?" Nitori stared as his teacher continued forward going around to the
other side of the desk taking a seat in his wheeled chair.
"Come here," he rolled closer to his desk putting his arms over the surface.
Nitori felt the mood in the air shift as he stepped to the desk standing in
front of it gazing down at his teacher, "yeah..?"
"I know about your feelings," a grin twitched on his face seeing the small
flinch of the boy while his face dropped.
Everyone had feelings for Rin so why was he putting him under a pin, "sorry!"
the boy began to turn back ready to flee but Rin stood up kicking his chair
back into the wall scaring Nitori still.
"Don't be sorry," he began as he circled around the desk slightly hurried, he
began leaning on it still managing to tower over the younger.
Nitori furrowed his brows, he bit onto his lip as his face got hot, "what?"
Rin hushed gently as he lowered his hand brushing Nitori's soft dainty hand
trying not to make sudden movements and frighten the boy but he felt like he
already had with his type of actions.
First he ran his hands under the gym shirt up over his warm baby soft skin, his
long finger brushing over a perky nipple getting a faint noise from Nitori, he
honed in on it now pulling the shirt up revealing the pink nipples.
Rin became rather excited as he looked at the bare chest he had the pleasure of
seeing before from previous gym classes, when his hands moved over Nitori's
stomach that twitched under the touch Nitori moved his hands away, "stop..." 
The boy couldn't help but stare down at the growing bulge of his teacher, he
wanted to do things too knowing it was alright and even welcomed in this
situation. He thought about this many times before but in the moment it slipped
away, his hands moved against the firm stomach under the layers of clothes, he
ran them up the nice fabric of the suit till he touched the zipper. He pulled
it down with the satisfying sound of the zip, he could feel how Rin was getting
restless, when the boy dared to look up he found Rin staring at him with an
intense look in his eyes.
This type of look went straight to his groin, he felt so focused on, so desired
for. When he unzipped the sweater he pushed them apart gliding his hands over
the dark tank top feeling the firm muscle over his chest and ribs, he liked how
it felt when his rib cage expanded each breath.
Both males jumped when multiple knocks on the door sounded, "sensei? You in?" a
sweet voice asked.
Wasting absolutely no time Rin grabbed the boy's upper arm pulling him around
the desk hating how he had to force him on the ground and under the desk before
sitting down in his chair. The boy felt like his heart was going to come up his
throat as he scooted further under the tightly enclosed desk watching as Rin
rolled the chair closer, his legs open to either side giving the boy some room.
"Yeah," Rin replied with a panty breath, he wanted to groan with irritation
when a female student of his walked in with a smile.
"Hello, Rin," she laughed with a wave, hearing it from under the desk made
Nitori frown, it sounded so casual to call his name like that. His first name
too.
"Don't call me by my name," Rin grunted stressed about it, "that can get me
into serious trouble," he grabbed a pen from nearby fiddling with it looking
like he was in the middle of work.
"Sorry." she licked her lips and sat on the chair in front of the desk watching
him, "what are you doing?"
Rin rubbed an eyebrow slowly to calm down, "work, what did you need?"
The more this went on made Nitori uncomfortable and even feeling neglected, as
he sat in the cramped space he saw something that'd be worth his time under
there. His hands snaked up Rin's leg slowly, smiling when he felt a flinch,
carefully slow and quiet Nitori shifted onto his knees as his hands worked over
the muscular thighs toward the bulge that grew in the track pants.
Rin gulped now tapping the pen end against the desktop for a short time until
he tapped it against his hand, it was less noisy, the girl just watched, "um, I
was wondering how I'm doing in your class."
"Gym?" he croaked when the boys' hands got closer to his crotch, "I'd say
fairly well, average."
Nitori felt accomplished hearing the pitch in Rin's voice, filling the
anticipation he rubbed the bulge quick to find the outline of his cock leaning
over his right thigh, this was in his fantasies. He pet the length lovingly
before reaching in grabbing the heat pulling it out. His eyes almost rolled
back already by seeing how thick and big it was, the best part was Rin couldn't
stop him in this situation, he could try but so far he didn't do anything.
The girl carried on the conversation about some story, Rin wasn't listening, he
just stayed still keeping his reactions from showing as the boy he really
wanted was under the desk doing something very lewd.
Nitori leaned in breathing over the cock with hot breath getting a nice twitch,
he could smell the distinct smell of Rin but also how clean it was, he gave it
slow tugs before he inched forward with an open mouth, his tongue sticking out,
he felt the older tense as he pressed his tongue against the head getting the
taste. It had a hint of a salty taste as he moved down licking up the underside
to the tip where he nudged at the slit.
Rin's legs jumped a little, the boy gladly carried on trying to be skillful
about what he did. He only ever read online about blow jobs, he sighed silently
as he nuzzled his cheek against the hot sex in his hand just before kissing the
side of it giving it a couple gentle sucks. The pants got in the way sometimes,
it prevented him from showing his balls some love, maybe he'd get to do it in
the future. His fingers brushed the patch of maroon colored pubes that were
surprisingly well groomed.
Nitori was given a small shock when Rin's hand moved under caressing his cheek
when he found it, he also tucked some of his hair behind his ear. The girl was
still there so to throw her off Rin reached to the right pulling a drawer open
taking out some notebook, he was still trying to hurry conversation up with the
flirtatious student.
Nitori blushed feeling encouraged, he shifted a little now licking the head and
taking it into his mouth slowly finding out how difficult it actually was as
his mouth opened more to take it in, he wanted to make noise as he tried taking
in more, it approached the back of his throat and he wasn't even more than half
way yet, he expected to be gagging but he didn't, slowly he pulled back and
started to bob his head slowly as he breathed through his nose. He felt the
zing and salty taste as something leaked from the cock in his mouth, his hand
that rested around the base had some saliva roll over it, Nitori pulled away
for a breather giving some strokes.
When he took the slippery phallus back into his mouth he pushed it against the
inside of his cheek this time, his cheek stretched taking in more than
expected, he felt shivers now.
Rin shuffled stuff around telling the girl to leave cause he was behind on some
work, she protested but he demanded it. He offended her and when she left she
slammed the door.
Rin groaned lowly and leaned back looking at the boy who sat under his desk, he
nearly came from seeing the cute boy stuff his cheeks with his thick cock,
"holy fuck," he ran his hands through the soft grey locks, as soon as his sea
blue eyes looked up he pushed his head back, his cock flopping out of his
mouth, saliva connected to the tip to the boys open mouth. He was in shock
feeling how aggressive arousal tugged inside him, quickly he started stroking
himself with audible slick noises, "shit, shit."
Nitori knew he was gonna blow and leaned forward opening his mouth wider with
his tongue pressed under the head, moments later ropes of come pooled over his
tongue even getting on his lips and the roof of his mouth, it had a pleasant
taste to it, different than he was told.
His teacher panted heavily still stroking himself doing it gently to keep hard,
that wasn't a problem after watching the curiously cute and embarrassed teen
lick the white substance off his lips and swallow it with a tiny barely
noticeable shiver. 
"Get up here," he moved back more giving room as Nitori crawled out, once he
was up Rin stood picking the small male up and setting him on the desk, "you're
so beautiful, do you know what you do to me?" he moaned as he fumbled pulling
his sweater off dropping it to the floor, he made room on the desktop knocking
some stuff off keeping room for the boy.
Nitori still tasted the come in his mouth no matter how many times he swallowed
pooled saliva, it wasn't bad at all, "do you... like me?" he asked with a dazed
tone not being able to keep up with what was happening.
"Do I like you?" he scoffed as he took his hair down from the ponytail getting
ready, his dick was still out and still throbbing wanting to be buried deep in
Nitori's body, "I like you a whole lot."
Nitori felt his heart falter at first but then he blushed furiously, his legs
hanging off the desk, Rin reached into a drawer taking out a condom and bottle
of lube, the boy snatched the condom surprising the older male, "no, no
condom."
"Are you sure? If I come inside you'll feel sick later," he ran his now free
hand up a leg of the boy grabbing the band of the shorts and briefs.
"Worth it," the boy groaned, he was already so stiff from the under desk
excitement, the condom packet slipping from his fingers distracted as the male
leaned in giving him an experienced kiss on the lips, his eyes fluttered shut
then opened feeling his large hand cup his cheek kissing him, he kissed him
like he was something so fragile, so special.
Once the kiss finished Rin slipped back into his horny mode as he tugged the
younger male's shorts off with a grin on his face, slipping them off left the
male bottomless, he covered himself with his hands but Rin shook his head
setting the lube aside now moving Nitori's hands away, "now, I will show you
something special. Make you feel something special," he grabbed the small cock
giving it strokes making his student quiver with a small whine, "Nitori," he
huffed softly.
"P-please, call me Ai," he gave a tiny buck of his hips craving friction.
"Ai..." Rin kissed his neck, "call me Rin.."
Hearing his own name on top of being given permission to call him that was
beyond everything exciting, he even made a small noise as his hands moved up
slipping over his more revealed shoulders to the back of his head moving into
his soft hair, "yes, yes, Rin," he moved his head up kissing his lips hungrily,
"I want you," he panted between kisses getting Rin all fired up.more than
before.
Grunted and moved back pulling the boy off the desk turning him around, the boy
gasped at being bent over the desk as Rin hurried up grabbing the bottled lube
opening it, with a hand he grabbed an ass cheek pulling it to the side seeing
the hole that he thought about pounding into sometimes when he was alone or in
class with the boy. He poured the lube over it then set the bottle aside now
rubbing against the twitching hole before easing in a finger.
The boys' legs gave quivers wile Rin patiently stretched the muscle, first one,
then two with some scissoring. Eventually he fit in three and after that
impressively got in four. As he did that he added more lube, impatiently Nitori
moved his hips fucking his teachers' fingers after he went back to two, "no
more, no more, please," the boy panted as he begged, "do me, do me."
Rin clenched his jaw feeling and watching the boy move against his fingers
without him moving them, he pulled his fingers from the slutty boy adding lube
to his cock as quickly as he possibly could, stroking himself he added more
lube to make sure as he stepped forward pushing the head against the ring of
muscle that was very welcoming to his fingers, "here we go Ai," he rubbed the
lower back of the boy as he pushed forward moaning as the heat welcomed his
throbbing slippery phallus, "holy shit, holy fuck," he chanted watching as his
dick disappeared into the small ass up to the hilt.
Nitori was gripped at the desk feeling himself get fuller, he held his breath
then panted and did it over again before he was back to steady breathing, he
felt like his insides were on fire.
"I'm in," sweat drops rolled down Rin's face already, he pet and caressed
Nitori's back and butt trying to keep him calm.
After staying still Nitori gave him permission by trying to move against him,
with that Rin gladly pulled out of the heat slamming right back in feeling his
heart flutter hearing Nitori cry out and muffle that cry with his hand, he
moaned into his hand as his whole body trembled.
Rin growled as he strongly started to thrust into the boy who lived in his
daydreams, it was unreal, his hand moved up the back of the male grabbing his
sweaty hair keeping hold but not tugging, only sometimes he did and got nice
grunts and groans from the teen, Ai's name spilling from his lips like a
favorite tune.
Not fighting the urge Rin grabbed and slapped Ai's ass as he drove into it
loving every second and every sight, it was beautiful. 
Rin angled differently and hunched over the boy kissing his neck and shoulders
as he starting to hit the boys' prostate making Ai mewl louder and try harder
to conceal it, his nails digging into the wooden desk as his stomach pressed
against the top of the desk, his eyes were already rolling back from being
plowed so hard. The heavy pants and sweet nothings in his ear intensified
everything.
He moved his spit covered hand from his mouth, some saliva dripped to the floor
as he trembled wholly, "R-Rin, I'm-- I'm gonna come," he cried pushing back
into the thrusts wanting to come so bad, it was torture not to stroke himself
to relieve the crave for friction on his dick.
"Come," Rin heavily groaned giving his thrusts harder moving the desk forward
loudly, the boy under him moaned out shamefully finishing the moan into his
hand as the ropes of come landed on the floor at their feet, Ai would have
collapsed to the floor if it wasn't for the desk, his legs going limp as he
lowered his head feeling tired and the sensitive sensation as Rin rode out his
orgasm filling him up with his seed, the whole sensation felt like it could
kill Nitori.
Rin kissed the back of the boy lovingly as he began to comfort him with sweet
messaging strokes on his back, hair, backside and legs too.
They were a sweaty mess.
---
After getting showered and dressed Nitori got his gear and walked with a hugely
noticeable wobble of his legs making Rin feel bad, but Ai was forgiving and
gave his sensei kisses just because he can.
Once they said goodbye the boy sauntered outside feeling troubled thinking come
was leaking even though he did his best to clean it out in the gym shower, Rin
even helped finger it out.
A ring from his bag startled him but he fumbled getting his phone out
hurriedly.
Ken: how was 'Extended Physical Education'? Was it a blast? An EXPLOSION? 
Ken:I'm outside the gate with my bike, I'll give you a ride home
 
 
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