We'll Never Leave you alone (Yandere 2p nordic 5 X reader)

My Pikkusisko

The psychiatrist who worked at the high security prison sighed as he watched me, Thurston, Get escorted in by a squadron of guards.
I was screaming bloody murder and how I would kill all of them when I escaped.
"Mr. Väinämöinen, please calm-"
"DON'T FUCKING TELL ME TO CALM DOWN BASTARD!!!"
The guards could hardly keep me under control, they had to sedate me before they could leave me with the psychiatrist.
"Now Mr. Väinämöinen, I'm Dr. Branche.", Branche greeted me, "I'm here to talk about your obsession with your sister, the obsession that triggered the massive killing spree."

"Fuck. Off."
"Thurston, I need to know.", Branche said, "What is your view on your sister?"
I growled at the psychiatrist and looked away, "She's not my Pikkusisko."
Branche nodded, "then what is she to you?"
I looked back at the psychiatrist with insanity swirling in my crimson eyes.
"SHE IS MINE."

"Now we are getting somewhere!", Branche smiled, "Can you please start from the beginning? Like when you first saw her?"
I looked away from the psychiatrist and made an expression that showed I was deep in thought, I turned back to face Branche with a scowl.
"I want something in return."
"As long as it is not escape, I'll see what I can do."
My face grew dark as I stared down the psychiatrist, "I want something of (y/n)'s, be it a photograph or something she made."
"I actually can grant that request.", The psychiatrist chuckled and that got my attention.
"You have something that belonged to my Kultaseni?"
Dr. Branche nodded and pulled a small wolf figurine And a picture from his pocket, the figurine was the same color as my hair and had the same blood red uniform jacket.
The picture was of (y/n), she had a warm smile on her face and was wearing my hat.
"If you tell me about how you became like this, I will give you these."

I grunted in annoyance, "fine"
Dr. Branche sat the items on his desk and leaned back into his chair, "start from the beginning, Mr. Väinämöinen."
"It started when she was first born.", I sighed as a calm expression seeped over my features, "Scandinavia was proud of her, her only daughter."

FLASHBACK
"Thurston! Come see your new sister!", Scandinavia called with a smile on her tired face, "She's waiting to see all her brothers!"
I was standing away from the others, I felt out of place in that setting.
Magnus sighed and pulled me to mother's side, the woman was holding a small bundle.
From the bundle two (e/c) eyes peered out and looked at the group surrounding her, Egil cooed softly at the baby and the infant smiled an adorable toothless grin.
Flashback end

"So who held baby (y/n) first?", Branche asked interested in his my Story.
I looked at him annoyed, "Magnus held her first, Bernard was not allowed near her, neither was Loki, Egil had to sit down before he could hold her, and I refused to hold her."
"So you were jealous of her?", the psychiatrist asked and I glared at him.
"I was not jealous, I was...", I paused for a second to find the right word, "I was afraid that I would hurt her."
The Doctor nodded silently at me before motioning for me to continue, "what happened to your mother?"
I looked down sadly for a second before looking Branche in the eye, "she died after (y/n) was born. We had to find someone else to nurse (y/n) since mom could not."
"What happened to the nurse?"
"After she was no longer needed, we killed her and fed Kulta with bottles.", I sat back in my chair and crossed my arms, "bitch was annoying, I'm glad We killed her."
Branche pulled out a few files and looked through them, "you lost her for three years to a... Alfred F. Jones. Is that correct?"
I growled at the mention of America's human name, "that fatass stole her from us, we have no regrets for what we did to him."

FLASHBACK
We returned to base after destroying a capital out of rage, we were still furious about not having their little sister with tus.
"Do you think that they got our message yet? " Egil laughed , "if not, we can do it to another capital Big brother!"
"I agree and DON'T FUCKING CALL ME THAT!", Loki shouted
I ignored most of what my brothers said but I scolded the two dumbasses sitting next to me.
"Three years", Magnus scowled, "we have to get her back."
After our eldest brother said that I left, I did not want to hear Egil start.
Flashback end