
Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/10812210.
  Rating:
      Explicit
  Archive Warning:
      Underage
  Category:
      F/M
  Fandom:
      Harry_Potter_-_J._K._Rowling
  Character:
      Sirius_Black, Minerva_McGonagall
  Additional Tags:
      Erotica, Explicit_Sexual_Content, Heterosexual_Sex, The_Quidditch_Pitch:
      Erotic_Couplings
  Collections:
      The_Quidditch_Pitch
  Stats:
      Published: 2007-03-17 Words: 1660
****** Nighttime Wanderings ******
by MinSiRe [archived by thequidditchpitch_archivist]
Summary
     Sirius is trying to get back to Gryffindor Tower unnoticed when he
     finds a certain someone in an intoxicated state and learns a few
     unexpected lessons. MMSB
Notes
     Note from Annie, the archivist: this story was originally archived at
     The_Quidditch_Pitch, which went offline in 2015 when the hosting
     expired, at a time I was not able to renew it. I contacted Open
     Doors, hoping to preserve the archive using an old backup, and began
     importing these works as an Open Doors-approved project in April
     2017. Open Doors e-mailed all authors about the move and posted
     announcements, but may not have reached everyone. If you are (or
     know) this creator, please contact us using the e-mail address on The
     Quidditch_Pitch_collection_profile.

Author's notes:
Disclaimer: - I own absolutely nothing though would be more than happy, should
 JKR ever tire of the world she created, to take it over. Free of charge. :D

  Warning: - Whilst this is tamer than most of my fics are or will be, it is
     nevertheless still an ‘M' rating. It also portrays a student/teacher
relationship so if you have problems with this I strongly suggest hitting that
                               back button now.
===============================================================================
Sirius glanced at his watch as he hurried toward the Gryffindor tower.
Midnight. He cursed fluidly as he rounded a corner and found Peeves writing
obscenities on the wall. He didn't have James' Invisibility Cloak, and
Hogwarts' resident poltergeist was sure to raise a riot if he saw Sirius.
He pressed himself flush against the wall, and inched back along the corridor,
slipping behind a tapestry he knew would take him to the other side of
Gryffindor Tower. It was a circuitous route, but he had already served four
detentions that week and was not keen to serve another lest he be caught.
His footsteps were light as he tread along the hall, and it was with bated
breath that he pushed open the portrait of Merlin to reveal an empty corridor.
Breathing a sigh of relief, he continued toward the Gryffindor Tower, stopping
short when he heard the sound of staggering footsteps.
He quickly hid behind a suit of armour, and his mouth dropped as Professor
Minerva McGonagall came into view. She was obviously heavily intoxicated, if
her dishevelled state was anything to go by, and was having considerable
trouble walking in a straight line. She tried to steady herself against the
stone wall with one hand, but missed and fell to the ground in a heap.
Her glasses flew from her nose, forcing her to all fours searching for them.
Sirius could not stand watching her plight any longer, and stepped out from the
shadows.
"Here we are, Professor," he said picking up her spectacles and holding his
hand out to her.
She looked at him blearily, trying to focus on his face. "Sirius?" she asked,
her words slightly slurred.
He nodded as he grasped her wrist, pulling her to her feet in a fluid motion.
"Yes, Professor," he said wrapping his arm around her waist to support her.
"Come on, you need to get back to your chambers."
She nodded and to his intense surprise smiled at him. "I think I'm drunk," she
confided with a giggle into his ear.
"Really?" Sirius said sarcastically as he walked with her along the darkened
corridor. "I'd never have guessed."
She nodded as they turned a corner and stopped in front of the portrait of
Godric Gryffindor.
"What's your password, Professor?" Sirius asked, shaking her slightly.
She squinted at him as he placed her spectacles on her nose. "Duine aonair,"she
whispered into his ear. "But don't tell anyone."
Sirius rolled his eyes as the portrait swung open, and walked her over to her
bed. "Here we go, Professor," he said sitting her gently on the edge.
He stood awkwardly before her as she looked upwards at him. Her gaze had
sobered. His throat tightened when she reached upwards and pulled the pins from
her hair, sighing with obvious relief.
"I'll just...er..." he said gesturing at the door.
She paid him no heed as she rose to her feet, and unbuttoned the front of her
robes. "You'll...?" she asked, as her robes fell to the ground in a puddle at
her feet.
She stood before him, clad only in black, satin underwear. He gulped as he
looked at her, uncomfortably aware that she was the most beautiful witch he had
ever seen. Though he would never admit this to anyone, he had harboured
feelings for his Transfiguration Professor since she first arrived on staff six
months ago.
Professor McGonagall raised her eyebrows, and Sirius stepped back as she moved
toward him. He backed against the wall, but she continued forward until they
were almost nose-to-nose. She was only a couple of inches shorter than him. His
breath left him as she bit his neck lightly.
"You don't think I've seen you watching me, Sirius?" she breathed, as she stood
on the tips of her toes and dragged a finger along his jaw.
"Professor..." he said, raising his hands to push her away.
His hands connected with her outline of her bra, and she pushed her chest
against him. He could feel her hard nipples through the flimsy fabric, and
though he tried to push her away again, she reached down and placed his hand
against her heart.
He could feel her pulse against his hand, and felt a definite stirring between
his legs. His Transfiguration Mistress thrust her hips toward him, and smirked
when she felt his hard member against her stomach.
"Well, well," she whispered as she unbuttoned his shirt and ran her fingers
down his stomach until they were toying with his waistband. "What have we
here?"
Sirius could stand it no longer, and, with a feral growl, he grabbed her waist
and lifted her bodily from the ground, turning so she was flush against the
wall.
"That's more like it," she whispered, as he fumbled with her underwear.
Sirius bit her neck lightly as she undid his fly with her nimble fingers. His
trousers fell to the ground, and he kicked them away as her legs rose to
ensnare his waist.
"Come on, Sirius," she goaded as her hand ran along his hard along his member
which was still covered by the thin fabric of his underwear.
He placed her back on the ground. She smirked and ran her fingers around his
nipples, pinching them into a point. His breath caught in his chest as she
continued to run her hands lower and lower, until she was kneeling on the
ground before him. When she lowered his underwear and stroked his cock with her
finger, he felt a groan of sheer rapture escape from his throat.
Professor McGonagall smirked at him as she continued to run her finger around
the tip of his cock. She raised her eyebrows and closed her eyes as she opened
her mouth and ran her tongue around the hardened head.
"Good, god," Sirius cried, reaching down and holding her shoulders.
She began to move back and forth, running her tongue along his shaft. She
raised her hands and ran them down his chest, her nails scraping his skin until
he was sure she'd left scratch marks.
His member was throbbing under her ministrations, and he knew that he was close
to release. He wanted to come inside her so he pulled her back to her feet and
slammed her against the wall.
She cried out as her back collided heavily with the hard stone. Sirius held
himself before her, his cock brushing against her most sensitive region. She
reached around his back and pulled him towards her until his member was fully
encased within her.
A gasp escaped from her mouth. "More, Sirius," she whispered as she thrust
against him.
He needed no second bidding and countered her thrusts, slowly at first, inching
in and out so she was almost begging for him to pound against her. He began to
move faster, slamming her hard against the wall, and she bit his shoulder to
stop herself from screaming out.
"More," she managed to whisper as his movements became more erratic. "More,
Sirius."
He thrust harder and harder against her. She adjusted her hips, meeting every
thrust with one of her own.
"Oh, god, Professor," he managed as he felt her quiver beneath him, her velvety
walls clenching around his cock until he, too, began to shudder as he climaxed.
"Sirius," she gasped as she rode the waves of orgasm.
She rested her forehead against his as he released himself from her. Their
breath intermingled and before he knew it, she was kissing him as he had never
been kissed before. Her tongue plunged into his mouth without warning, and she
licked his canines before drawing back.
"Thank you, Sirius," she whispered running a finger along his jaw once again.
He shook his head as he lowered her back to the ground, and began to retrieve
his clothing strewn about the room. She watched him, biting her lip, as he
struggled back into his jeans. She reached out to place a hand on his forearm.
"You know," she said softly, moving closer so her breath was hot against his
lips. "I think you'd benefit from tuition."
He raised his eyebrows. "I thought I did pretty well."
She nodded in agreement. "But you know what they say about practice...."
Sirius' clothes dropped from his hands as he lifted her once more and carried
her toward the bed.
"No, what's that?" he asked as he held himself above her and dragged a lazy
finger over the rise of her breasts.
"Practice makes perfect," she said through a moan as he continued downward and
entered her with one finger.
He smiled as he inserted another and she began to thrust against his hand. "I
think I'm on my way to an ‘Outstanding'," he said with a smirk as she let out
an animal cry of sheer pleasure.
She reached down and pulled him toward her, her nails scraping along his back.
"Now would be a good time to shut up, Sirius," she said, wrapping one leg
around him.
He smirked, but gasped as she rolled over so she was straddling him. She held
herself above him, torturing him with her closeness. He reached out and pushed
down on her shoulders to lower her onto him.
As she rocked back and forth, he threw his head back and moaned, "Oh, god,
Professor...."
She increased her thrusts, and he allowed his eyes to close as she moved above
him.
Maybe I should sneak out at night more often,he thought aimlessly
"Oh, god, Professor...."
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