Harry Potter Characters x Reader oneshots

Sirius Black

Y/N sat in her classroom grading essays when a note landed on her desk, written in Remus' shaky handwriting.

Meet me in the Shrieking Shack.

She looked into the night, seeing the full moon before grabbing the bag Remus had instructed- full of bandages and healing potions- before rushing out the door. She ran down the steps, out through the entrance hall into the cold evening. The sun had just begun to set as she snuck under the frozen Whomping Willow into the Shack. The light of her wand showed drag marks in the dust, as well as several pairs of footprints. Faint voices came from the main room as Y/N wound her way up the stairs. Pushing open the door, ready to help Remus, the bag slipped from her hand,  clattering onto the floor.

Everyone in the room turned to look at her, apart from the unconscious Snape on the floor. She barely registered the lump as her gaze was fixed on him.

She didn't say anything, simply looked at his thin frame, ragged clothes and unruly hair. She knew those eyes, those dull grey eyes that usually shone with affection, cheeks that were normally stretched into a grin- now sunken and stretched with hunger. Those grey eyes bore into hers as he stared back at her, tears threatening to leak out of them. His mouth moved wordlessly as he remembered what it felt like to drown in her eyes. For a moment, time felt suspended,  and she stopped breathing as she took in the deadness of the eyes she so loved, as they took in the sight of her happy and healthy,  unlike him.

But time resumed, and Y/N straightened, looking at him with pure, white hot fury.
"I told you not to go. I told you not to follow him Sirius."
Sirius hung his head, taking a step towards Y/N.  "My love let m-"
She stopped him with a finger. "Don't think you can 'my love' your way out of this Sirius Black. Your stupidity got us into this mess." She looked around, as though she had just become aware of the other people in the room. When she saw Harry, her anger died down. "Although I suppose any one of us would have done the same for Lily and James. Apart from you, Wormtail."
Everyone followed her look to see the rat, still trembling with fear.
Y/N turned back to Sirius and Remus, "Go on then you two. You've waited long enough for this."
Remus looked to Sirius, who nodded. They both drew their hands and with a flash of light the rat became Peter Pettigrew, crouched on the floor, shaking in his thin, ragged clothing. He scurried forward, begging and crying to be shown mercy. Sirius sneered at him, telling him to shut up before Peter turned his attention to Y/N.
"Dear dear Y/N, you always were the kindest of us all. Show a little mercy for an old friend?"
Sirius came forward, standing between the two.
"Don't you dare speak to her you filthy coward!"
"What was I meant to do Sirius? The Dark Lord was powerful! So powerful!"
"You should have died! Died rather than betray them! As we all would have!" Sirius roared.
"As we once would have for you!"
Harry gave a stunned squeak.
Y/N came and rested a hand on his arm, "I know this is a lot to take in Harry, but Sirius would have died before betraying your father. They were like brothers."
Remus came forward. "It's true, and I was an idiot for believing Sirius could possibly have betrayed them." He looked towards his friend, who just gave a smile and a small nod, a sign of forgiveness.
"Harry!" Wormtail cried. "Your father was indeed a great man! He would have wanted me spared!" Sirius lurched forward again, but Y/N beat him to it, slapping Peter on the cheek. "Don't you dare speak of James! Or Lily! Don't so much think as looking at Harry again or so help me God I will end you, Pettigrew."
Harry, Ron and Hermione stood shocked at the outburst of their professor- usually so lovely and softly spoken. Sirius stood with a smirk, proud of his girl for putting Peter in his place. Remus came forward, wand stretched out.
"Shall we finish him off Sirius?"
Sirius shrugged, "go on then."
Wormtail was reduced to a whimpering wreck on the floor as the two men pointed their hands at him. Harry thought about what he had said about his father, and shook his head.
"No, don't do it. Let's turn him in- then Sirius can go free and everyone will know the truth." Remus and Sirius lowered their wands.  Wormtail crawled forward, thanking Harry for his compassion. Harry moved back, a look of disgust on his face. "I didn't do it for you, I don't think my dad would want his two best friends becoming murderers. Especially for a spineless snake like you."