Secrets (Remus Lupin X Reader)

It was in December, 8 months and 6 nights ago to be exactly

 It was snowing the christmas night that Sirius escaped the common room to take a walk through the grounds of Hogwarts. If someone would be looking through the window instead of dreaming about their presents, they would have seen the dark figure of an uncommon big dog in the distance, but what they wouldn't see is what it held between his teeths. The thing he was going to destroy to make sure no one would see , specially y/n.

 Regulus Black was awake, he shifted from one side of the bed to the other, covered himself with the covers up to his collarbones feeling their weight against his body. The green and silver curtains of his bed were closed. He didn't want anyone to see him. He didn't want to see himself. He probably looked like he was going to throw up he thought. Or even worse, he might looked in love.

 You and Lily couldn't sleep that night so you went on her bed. She moved easily her wand shutting the curtains, adding and extra flick of her wrist she casted a spell so no one could hear you. You were facing Lily, whose back was given to the rest of the room.
"Wouldn't it be lovely to receive a christmas present from a secret admire?" Lily said with a big smile.
"I guess... But what if you don't like him back?"
She laughed
"Come on! I'm not talking about someone like James Potter, I am talking about someone whose been secretly in love with us, someone nice."
"Us? I don't want to share the mysterious man"
"Oh Lord y/n! You know what I mean!"

  At 23:02 James, Peter and Remus were in deep sleep while Sirius woke up. He looked around realising he was no longer inside a nightmare. He was safe, at Hogwarts, with his friends.
Tick, tick...
 Padfoot sat on his bed and looked around. Remus was lying on top of the covers wearing nothing but shorts; James was lying on his stomach with an arm under the pillow and one leg (the left one) comming out of the covers and hanging from the bed; Peter had closed the curtains, hiding his dreams.
Tick, tick...
"What's that?" Sirius thought.
 Outside, a big brown owl was waiting with a letter. He recognised it instantly, it was his brother's owl. Sirius has finally left his house months ago and he hadn't spoke to him since then, not even at Hogwarts.
 Slowly, the boy came out of the bed and made his way to the window. His wand aiming the owl, not knowing what to expect, he opened the window. 

He took the letter.

"Lumos"

Dear y/n

I don't know how to write this or where should I start so here's the truth:
I love you, always have, and always will.

                                                          Merry christmas.
                                                                        R. A. B.

The owl flew away.

 Downstairs, next to the dungeons, Regulus imagined every possible esenary except for one. The one in which his owl called to the wrong window. The one in which y/n never finds out about his true feelings because his own brother destroyed the letter. 

 The most complicated, twisted, fascinated and surprising esenary, reality.