The beginnings of an obsession

Harry was the only person in his dorm that was awake; everyone else had gone to sleep hours ago. He just couldn’t sleep; he lay there staring at the ceiling with that felt like the biggest erection he’d ever had. He tried to will it away thinking of the most horrible things he could..
*Crabbe naked..with Goyle! Yuk* He thought * Voldemort’s orgasm face, if he could even have an orgasm*
But nothing worked, his boner would not disappear any other way then to jack off. He reached down into his Gryffindor pyjama pants and started to touch himself but when the image of the person who caused this problem in the first place pop into his head again he quickly stopped.
Severus Snape. Harry Potter’s most hated teacher at Hogwarts, he had tried to embarrass Harry in every lesson he’d ever had with the man and give him lesser grades than he deserved but for some odd reason for about three months he is all Harry can think about.
His shoulder length greasy black hair, crooked nose, billowing long robes and that scent of herbs and after shave drifted through his mind constantly but Harry was having a very..well..hard time at admitting this to himself. He knew he was gay and has no problem with it but SNAPE?! No way! Not that greasy git.
Eventually Harry was going to have to deal with his little obsession but not now, he rolled over and tried to force himself to sleep, which he succeeded in after about 10 minutes.

He opened his eyes as he reached up for his morning stretch, noticing his morning glory too. * Sorry you’re going to have to wait for a little bit * He thought to his penis as he pulled his covers off and strode downstairs for a shower.
“Mornin’ ‘arry” Called Ron after him.
“Good morning Ron” Harry replied.
Most of the showers were already full of steaming hot teenage boys, his cock twitched and he blushed as though someone had seen. He walked quickly into the last shower on the end sld slid the shower curtain closed, set down his things and tugged off his pjs.
The hot water felt good as it ran down Harry’s naked body and he pulled his fingers through his hair making sure to his whole body wet, especially his hardening cock. He rubbed some shampoo between his fingers and into his hair then down, down ,down to where his now full hard cock stood.
He rubbed the shampoo up and down his dick making a lather which burnt his head a little causing him to moan softly so not to let the other boys know what he is doing. He started to rub it harder and faster until he needed to lean against the shower wall to hold himself up then he went even harder.
Quick moans and grunts were escaping him now as he got even closer to his climax and visions of himself bent over for Professor Snape taking all Snape had to offer ran clearing in his head, then he was there he let out a little too loud moan and collapsed on the shower floor.
“Are you ok in the there?” Someone was standing just outside his curtain, who obviously had heard Harry’s moan and fall..
“Yeah I’m fine, just didn’t get enough sleep I guess” Harry struggled to get out of his throat still coming down from his orgasm.
The person left and Harry got out the shower, dried then left.
The day went quick with boring lesson after boring lesson until it reached Potions, the last lesson of the day and always the worst.
Walking in he sat down in his usual nex next to Hermione and Ron and awaited Snape’s dramatic entrance.
Snape burst threw the doors startling some students * they really should get used to it, it happens every lesson * Harry rolled his eyes as Snape gave everyone his death stares whilst walking to the front of the class and telling everyone what page we’ll be focusing on in out text books today. * Today’s page is page 115 and is about some bullshit potion we’re never going to use and are only being taught it because our Professor decided to be a prick. * Harry sighed as he picked up his quill to start taking notes…

Ingredients:
Some leaves off a dangerous plant we can’t pick them from so don’t bother.
Mix it around in some special water that looks like my semen.
Boil it for 2-4 hours.
Dry out the leaves in the sun for a day or two.
Boil in semen again.
Throw in some more leaves, raven’s feet and centaurs liver.
Dry it again then shove up your..

“Potter I do not believe they are the notes I have written up for you to copy. Am I correct?” Professor Snape whispered into Harry’s ear.
The potion masters face was inches away from Harry’s and his scent flowed into Harry’s nostrils, his long black ropes lightly touching Harry’s back not to mention that deep silky voice made Harry hard instantly.
“Oh..uh..Yes Sir your correct they aren’t” Harry said sweetly.
“ If I remember rightly I told everyone in the class to copy what I had written. What makes you think you were excused from this command ” Snape hissed.
“Nothing Sir, I was just trying to make the notes a little shorter I write slowly you see” Harry said with big green puppy dog eyes and a little smile.
“Well Potter you may join me after class to write out the notes over and over again until I’m satisfied your learning to write at a normal pace like the rest of the class” He turned on his heel and headed to the front to give more instructions to his students.
One by one they filed out of the classroom leaving only Harry, his aching erection and Professor Snape.