
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/13893006.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      M/M
  Fandom:
      Harry_Potter_-_J._K._Rowling
  Relationship:
      Harry_Potter/Severus_Snape
  Character:
      Severus_Snape, Harry_Potter
  Additional Tags:
      Anal_Sex, Oral_Sex, Desk_Sex, Teacher-Student_Relationship, First_Time,
      Loss_of_Virginity
  Stats:
      Published: 2018-03-07 Words: 2118
****** When Detentions Don't Go as Planned ******
by Shadow15
Summary
     When Harry is in for detention, he accidentally stumbles upon a
     completely new situation which leads him to wanting detentions with
     Snape as much as possible if they'll end in the same results as this
     one had.
It wasn't unusual for Harry to receive detentions from Snape – in fact, they
may as well have been part of his school timetable as he seemed to be sitting
in the dungeons with the Potions Master so often, he was sure Snape was running
out of excuses to get him down there. 
Detention was pretty much the same as it was every other time; Harry sat at the
table with his textbook open and copying down passages upon passages into his
own handwriting until he was certain he was never going forget the exact method
that came with creating an elixir of underwater breathing. The only thing that
was different was that, unlike today, Snape had never excused himself from the
classroom to disappear into his office as he usually liked sitting at his desk,
scowling and muttering at the slightest hesitation in Harry’s writing.
Harry sighed. It must have been fifteen minutes by now, and he was starting to
worry what the man was going to say when he would come back out into the
classroom and find Harry's quill had ran out ten minutes ago. He stood up
hesitantly; surely going to Snape directly and asking for a refill would be a
safer option than letting the other accuse him of slacking off in his absence.
He thought nothing of it as he crossed the threshold to Snape's office, and
though he knocked on the door, he received no response. It never occurred to
Harry that this was probably a very clear sign to stay the hell out and wait
for the Potions Master to come out on his own, but instead hr figured it was
just Snape being his usual loathing self, and he opened the unlocked door and
stepped in.
"Professor Snape, I –" Whatever Harry had been about to say caught in his
throat as his eyes widened and he tried to work out if what he was seeing was
real or Snape had snuck a hallucinations potion into his water earlier. "…"
Snape's eyes narrowed from where he sat at his desk, but he otherwise didn't
look angry. Perhaps it was the lust written all over his face that did it, but
instead he looked almost… hungry. His hand stilled at his lap where he had been
stroking his engorged cock, and he used his other one to beckon the younger
closer to him. The danger Harry was used to hearing in his tone was gone,
replaced by something he couldn't quite work out on the spot, and he muttered,
"Why don't we do detention a little… differently, Potter?"
Harry gulped. He felt the stirring behind his own pants, but he tried not to
let it show; surely Snape wanted only to ridicule him… He looked at the ground
and chose his words carefully. "I'm not sure what you mean, Professor…"
The teacher smirked. He stood up and closed the distance between them. When his
hand shot out and squeezed Harry's shoulder tightly, his smirk grew larger; he
knew exactly what his student was trying to hide by throwing his hands over his
crotch. "What's the matter, Potter? Never been in this situation with anyone
before? My, my; I guess… fame isn't everything, now, is it?"
Those words made Harry's cheeks feel so warm, he was sure his face was as red
as a Weasley's hair. "…"
"Now don't just stand there doing nothing." Suddenly, Severus' tone had become
sharper and more demanding, and if Harry were more experienced, he would have
recognized the lust. "On your knees, Potter. Now."
Harry obeyed. He stared up at Snape's face in an effort to not look at the
thick cock inches from his face; knowing he was so close to it made his stomach
do backflips. "Sir… What is it you're planning to do with me now…?"
"It should be quite obvious, Potter; I'm going to fuck you so hard, you may
never walk in this school again for the rest of the year. Now open your mouth."
Harry wasn't sure his mouth had opened because of the instructions; instead, he
had suspicions it had dropped open in shock of just how crude his teacher was.
There was no time to protest, however; his mouth was full of his teacher's dick
and he was finding it rather difficult to breathe around the shaft that was
thrusting in and out of his wet orifice like a lifeline.
Snape grunted. His hands shot out to take hold of his student's hair and hold
Harry's head in place as he snapped his hips back and forth as hard as he
could. "Stop gagging like a schoolgirl, Potter; I'm sure you can handle this."
To Harry's own astonishment, it was easy to adjust to having Snape in his mouth
– and the strangest thing of all was that it wasn't unwelcome; in fact, it
was more than welcome. His eyes closed as he focused on the bittersweet taste
while he dropped his hands to his lap to slide past the hem of his pants.
Snape's foot kicked Harry's hands away, and beneath his grunts, he growled,
"Did I give you permission to touch yourself? I did not. Ask me before you go
ahead with such acts."
Harry dared to pull his head away, and through lips swollen from the blowjob,
he panted, "How was I supposed to ask you when you're not even giving me room
to breathe?"
A tiny chuckle escaped Snape's throat as his lips curled into something that
wasn't quite a sneer. His eyes crinkled, and he hissed, "Beg."
The student was shocked how he wasn't embarrassed in the least to say,
"Oh, please, Professor Snape, please let me touch myself."
Snape regarded the younger's bulge before he muttered, "You may."
He took a step back at this so he could watch how Potter's hands worked himself
slowly. He listened to the soft mewls of pleasure the other made as he stroked
himself in a manner he clearly liked. He was almost tempted to put his own
hands back where they had been minutes previously, but why should he be the one
to get himself off when there was someone else here and he could make them do
it for him? 
"Tell me, Potter." Finally, Snape stepped closer again. "Do you do this to
yourself when everyone else is asleep around you? Or do you sneak off to the
bathroom so no one is the wiser?"
Harry groaned as his cock pulsated happily at the questions; why did they turn
him on further? "…"
"Well?" Snape rolled his eyes. "I suspect Weasley has walked in on you like
this before, has he not?"
"No…" Harry grunted as he stroked himself faster. "…I've… walked in on him…"
A smirk of satisfaction crossed Snape's face now. "And how did you… find it,
Potter?"
Well, Harry wasn't going to answer that question; it was just too personal! In
hopes to distract the man from his thoughts, he reached out to touch the
swollen shaft before him and ghost his fingers against the tip. Severus growled
and allowed his hips to buck into the pleasure.
"Go back into the classroom and bend over a table for me, Potter. I will be
with you in a moment."
Snape could have laughed at the way Harry rushed to obey commands, but he
wasn't going to; he was more focused on finding where he had placed his bottle
of lube. He found it quickly in one of his desk drawers, and with it in hand,
he went to join Harry who had eagerly bent himself over Draco Malfoy's usual
desk.
"I must warn you, Potter…" Snape didn't hesitate to squirt the lube onto his
fingers and rub them together, "…this may… hurt a little bit."
Harry braced himself for whatever was about to come. He was expecting fingers,
but instead it was something much bigger than a few digits, and he almost
screamed in pain as he felt something enter him and bury itself all the way to
the hilt.
Snape's fingers messed with the hair at Harry's nape as he gave the younger a
few moments to adjust, but he was otherwise silent when he started moving
again.
"Ahh!" Harry's body was tense, and his face was scrunched up in pain. He was
certain he was being ripped in half, and he had a feeling it was his own blood
he had felt dribble down his leg. "Hurt a little bit?!"
"Well, at least I warned you, didn't I?" Snape grunted into Harry's ear at a
particularly hard thrust. "After all… I could have… not said anything."
"You're too big!" Harry tried to pull away, but Snape was holding him close.
"You're ripping me! Get off!"
"It wouldn't be so bad if you would just relax," the Potions Master hissed.
"You'll get used to it."
Harry doubted those words; how was he supposed to get used to something that
was – gasp. What was that…? He gave a whimper as his legs spasmed; how could
something like this send a jolt of pleasure down his spine? It wasn't possible…
"Found it, have I?" As if to prove his hypothesis, Snape angled his hips to hit
the same spot. He let out a pleased grunt as he elicited a yelp of pleasure
from his new partner. "Does that feel good, Potter? Do you like it when I
dominate you this way?"
Harry couldn't speak; he was becoming so overwhelmed in pleasure, his vision
was fading in and out and all he could hear was his own deafening pants. "P-
professor Snape…!"
He couldn’t stop himself from whimpering as he thrust his hips backwards to
meet Snape’s movements.  They were jerky and awkward, inexperienced as he tried
to follow the steps to a dance he didn’t yet understand, and though he didn’t
know if he were pleasing Snape or not, he didn’t seem to be displeasuring him
as Snape’s rough thrusts only got rougher, and he grunted out his approval
every now and then.
His legs were like jelly as the bubbling sensation in his stomach continued to
grow.  He was sure that without the support of the desk beneath him, his legs
would have given out by now – but that was debatable with the way his teacher’s
hands were holding his hips so tightly, they were sure to leave bruises the
next day.
“Ahh!  S-snape…!” Harry scrunched his eyes shut tight as the pain finally faded
away into a dull ache he barely noticed as the sheer force of the pleasure sent
him into a frenzy.  His hands shot out and gripped desperately at the desk, his
nails digging into the hardwood and leaving claw marks Draco was sure to
question come their next Potions class.
"You know…" Snape's thrusts quickened as he felt his climax approaching.
"Students aren't supposed to enjoy their detention… Whatever am I going to do
with you…?"
The younger couldn't care what his teacher was insinuating; Snape could chop
off his foot for all he cared because right now, he was in unbelievable
pleasure. His hand snaked down to his front to take hold of himself, and in
time with his teacher's thrusts, he stroked.
Snape noticed this, and with a sneer on his face, he put all his strength into
the hardest thrust he could manage.  “You like that, Potter?  You like being
treated like a common whore?”
Harry’s body gave a jolt at the shudder of pleasure travelling down his spine
at those words.  His hips bucked forwards, searching for friction his hand
wasn’t able to completely satisfy.  He tightened his grip and stroked faster,
allowing Snape to control the pace at which his hips would snap forth into his
palm as it was being dragged downwards, creating a fierce combination of
pleasure he hadn’t realised he could elicit.
"S-snape, I, a-ah…!" Harry's eyes scrunched shut as he felt his climax hit him,
and he was powerless against his seed that was quickly staining the desk white.
He gasped as he felt something hot rush through him, and his cheeks reddened
again as he realized Snape had just come in him.
Snape was much more dignified than his student; after catching his breath, he
took a few steps back to tuck himself into his pants and fasten the zip again.
His eyes regarded Harry, and despite whatever the other was feeling in this
moment, he said, "You will write out an extra chapter to make up for tempting a
teacher. If it's not finished within the hour, you will be back again tomorrow
night, too."
Harry couldn't help but grin; never before had the idea of getting detention
sounded so appealing.
 
 
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