Suggested by kirsche50800
Slow at first with suggestive themes towards the ending on the middle. Enjoy! (I ship it..)
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Collin's point of view-

My story is not exactly what others believe it to be, at least not the entire origin of this h**l I've caused the world to spiral into. It is much more sick than what I once let on, but I suppose now...you'll finally know the truth. See the sicko I truly was. I suppose I should have expected that sequence of bloody events to unfold, but I was too arrogant and naive. I was too blinded by my own selfish desires that I put above all else.
I was never one who believe in fate or destiny. A cliche saying, huh? Well, it only seems right to say. I fell for that whole thing, for a foolish thing I had not believed in in the first place. I was stupid.
Ever since we first moved to that house, I had this deep seated discomfort and hatred with it. Especially for the basement. Deep down in that accursed place was more than cobwebs and dust, but something far more disturbing, far more malevolent than what I could have imagined at the time.
Mom and dad laughed at Armen and I for being so cautious of it, telling us that everything was fine; that it was just stuffy and everything was normal. How did they not see what was down there? Was I the only one to see, to hear those voices? I know I was.
Despite the unsettling feeling I always had, something was drawing me down there. Voices called in my head in the middle of every night, deep and menacing, sounding somewhat like my own, although more deep and with a more gruff tone. I just sat there on my bed, staring out the window at the setting moon, watching it slowly come into view, hoping it's bright glow would comfort me for a while, distract my thoughts from the voices calling for me to go into that underground room. It never worked out for long.
Perhaps I was curious, or more so desperate to make the whispers finally stop. One dark night, past the midnight hour based in the position of the moon, I had awoken to that same low, tempting voice calling me to head down below into the darkness to find the light. I could not drown them out, feeling like I was losing my mind. Was I truly going insane? I had to know. I was sick of restless nights. I needed the silence. I needed it to stop.
I stood and quietly left my roof, hoping that Armen had not heard from the room beside my own. I complied to the disembodied calls and headed for the basement door in the eeriness of darkness. I tried to remain as silent as possible so I did not wake my family, the old floorboards creaking beneath my feet with each small step.

"Collin..." it called me forth. I could no longer resist the temptation.

Of course the voices lead me to the basement door. At first, I hesitated to turn the doorknob, but as the voice called out my name one last time, the fear and dread suddenly fled from my body. I felt at peace.
My lungs took in a deep breath of air before I opened the door with caution, moving it slowly so that the squeaking hinges did not wake my family. My eyes squinted at the light gently illuminated at the bottom of the stairwell, a faint red glow that flickered like a dying flame. I was curious and baffled, but it was like I was suddenly incapable of fear. It was not threatening, more so welcoming.
I should have turned back...
The stairwell was dark and stuffy, a few cobwebs here and there that grazed against my body in my descent. The air was chilling, goosebumps rising from my pale skin as my body quivered, my breath fogging before my eyes. The floorboards beneath my feet would not stop squeaking, the faint light allowing me to avoid the webs and seeing how much dust was in the air, my chest tight from having less oxygen. Once I was at the bottom, my bare feet touching the soil, I turned my head to look around the room and find the source of the glow, and potentially the voice calling out to me. The basement was in great disrepair when we bought this house, missing floorboards, the walls coming apart, massive holes in the dirt that was now the floor. What caused the last people who owned this place to throw it into such a state?
My attention locked onto the faint red glow shining from a slim hall on the opposite end of the room, lit by many evenly spaced torches, all with only burning embers burning red on the sticks. Why did dad not tell me of a hallway down here? Why would he leave torches burning? Unless...something else was in play.
My feet took me along, navigating across the dirt and rubble until I reached the ominous hall. I walked through it, my thoughts so many that my head began to ache, then it felt like I was not thinking at all. It all became too much to comprehend all at once.
Upon reaching the end of the hallway, I was greeted by a near blinding white light, shielding my eyes until they adjusted. My eyes grew wide and unblinking once I lowered my arm, gazing at an unbelievable sight. I became lost in awe and wonder, my heart racing so much that my rib cage felt on the edge of shattering. Floating before me was a cloud of glowing white and faint grey light. It was like gazing upon the true form of an angel. It was the most gorgeous thing I had ever witnessed, and dare I say, nothing but pure beauty. It was enough to bring me to my trembling knees.

"I have waited a long time for you, Collin." The light spoke with a deep male voice that echoed against the crumbling walls.

It made my body grow weak. I found something about it to be alluring and soothing. Was I speaking to something divine? To God himself? An angel? Or perhaps it was just an illusion in my own deteriorating mind? I could not get myself to speak, only letting out shallow breaths before my throat would close up. My mind was unable to process the right words, over loaded with emotions and thoughts.

My lips trembled, myself stuttering as my thoughts struggled to form clearly in the fog clouding my mind. "Wh-what...a-are you?"

I was shaken when it actually replied. "I'm...a part of you. You can refer to me as Herobrine."

Herobrine. The name slipped from behind my teeth as a gentle whisper. What did he mean by "a part of me"? What was that suppose to suggest? Is this a figment of my imagination? Now I really know that I have lost my sanity.

"Why have you been calling out to me? What do you want?" I was frustrated by all the questions accumulated in my mind, knowing that I could not get them all answered. My body felt warm in his light, yet so cold.

"Are you an angel?"

A sound emitted from the massive body of light, resembling repressed laughter. His voice was almost taunting, amused by the situation. "Not exactly. Try again."

My eyes grew a little wider. "A demon..." I gasped. How could something so horrendous be so ravishing in godly beauty? Only Lucifer himself to match such divine pulchritude.

It never answered me exactly, but I knew by it's lack of a genuine response that my conclusion was correct. A demon... What could it possibly want with me, someone so insufficient? Perhaps that was exactly why it decided to show itself to me. Perhaps it was just here and chose me of all people. I know demons, I've read the lore, so why was I so mesmerized? Why did I lack any terror?

"What do you want?!" I repeated, this time with more dominance.

It once again spoke with deep, masculine voice that caused my insides to quake. "You and I, Collin, are destined to be bound! I can see into your heart, your desires, and I can give them to you!"

I stepped back, not in fear but in knowing better than to believe a demon. "Yeah, and at what cost? I know about your kind. You always have a catch."

"Smart boy. Very clever."

"So what is it you want in return? My soul?"

I gasped as I witnessed it move about, dancing around the room in a spectral of light. It's from lower to the ground, it's free moving shape no longer appearing like a cloud, but now took a humanoid figure. It stood around my height, a torso, legs, arms, head, fingers and hair in all. Somehow or another, despite it only being a body of pure light, I could see a pair of eyes just in the right places upon its formed head.
My heart was pounding profusely, myself getting light headed from my racing blood and struggle to take in air clean of dust. It, in a body mirroring my own with little distinguishing features, lifted up and floating around me like a levitating human being. I watched him go around me, as if examining me as he spoke.

"Soul..? No, that's not what I want. I can give you strength, power, magic forbidden by your people! Abilities only beings like me are capable of! All at the low cost of giving me a vessel."

Magic and divine power? I had always loved the thought of that, to be capable of things that mankind has cut off from themselves. A key to simple lives. Magic was fading away, becoming outlawed ever so slowly. My family even looks down upon it, scolding me for my interest. Armen is the only one who understands. With these powers, I could protect him from bullies, from anyone who try's to hurt him!
Having an interest in magic was not the only thing outcasting me from my family and society in general. There was one other thing, something...personal. Could he help that too? But being a vessel did not really suit my tastes at first.

"A vessel?"

He came back in front of him, his voice speaking to me telepathically. "Yes. You see, I need a body in order to live on this side of the dimensions, and you're one of the few strong enough to hold me. I'll just be a harmless voice in your head! We're already bound by fate, all we need to do, is complete the seal we already share."

I swallowed, clearing my throat as I thought about it. Remembering earlier, I already knew what it was like to have a foreign voice in my head, and I was aware that I hated it, but it was a small price to pay for all that power and possible redemption for...what I am. As he got closer to me, I stood straight, trying to appear confident. For a moment, I froze from his incredible beauty once more.

He continued, leaning in. "I could also help you with your other...dilemma. You know...with you being...different."

Queer. That was the word he was searching for. My cheeks somehow burned more. I gave the offer little thought afterwards, taking in his words, the lust and desperation dragging me further into itself.

"Alright. I accept. If I remember from the lore, we seal this with... a kiss?" He did not answer but his body language seemed to confirm my believes.

I closed my eyes and took in a breathe, breathing it out slowly to prepare myself. I had never kissed anyone before, let alone a demon. I leaned in and pressed my lips against where his own should have been, feeling the lush, plush feeling of lips against my own. In a weird way, I could not tell if they were warm or cold. I could not tell if they were soft or rough, but I definitely felt them. I pulled away and gasped, seeing him float up, backing away from me.
His being glowed brighter until he suddenly changed. He was no longer light, but pure darkness aside from his eyes that remained it's pure hue. He suddenly lunged down at me, and all went black and numb.
When I opened my eyes again, I found myself back in my room, where everything looked the same as when I had left it.

Was I dreaming that?

"Nope." I jumped at his voice, hearing his deep voice giggle at my actions.

I looked over to the door where a figure stood, but he did not look like as he did before. He looked exactly like me aside from two blank, glowing white eyes. He stared at me with a smile and his hands behind his back before walking over to where I stood.

"This is in your mind. No one here but us." My breath caught in my throat as his hand lifted up, caressing up the side of my face before his fingers took my ear and gently stroked it. "You see, Collin, it takes more than a simple kiss to satisfy me."

"What do you..? Oh. OH!" I realized what he meant, my eyes growing wider than ever and face feeling like fire had ignited beneath my cheeks.

Now, this was when things...took a turn. It is probably easy to tell how everything turned out after that point.
He laughed at me before roughly grabbing my wrists and forcing me to sit on the foot of the bed. His body had no radiating heat, only bitter cold to the touch. I felt his hand slip beneath my shirt, caressing my body until I found myself moaning in pleasure. I mentally screamed for him to stop, only managing to moan out quiet murmurs of my thoughts.

I tried to push him away but he only moved back slightly, arms still tucked underneath my shirt, wrapped around my torso. And it felt good. "Herobrine, stop! I-I..."

"What? You and I both know that it's not because I'm in a male form." He gave me a devilish smile, taunting me with that grin. "Don't worry, your family will never know."

Before I could get much else out from my mouth, he leaned into and placed a rough kiss upon my lips, immediately forcing his tongue down my throat. His hands ran down my back and sides, the rough kissing taking my breath away. My spine shivered with every little new sensation that ran across my body, my arms wrapping around him and kissing him fiercely as I played along, willingly joining him in his little game.
We removed clothes, gasping and panting. He laid me down, he kissed me with passion until he shifted to roughly biting me across my body. It hurt yet felt so good. Then things grew more physically intimate...things that I am now disgusted of. What felt like heaven now only reminds me of the beginning of my descent into h**l.
...My apologizes. Guess I got a bit carried away writing that, huh? Ha...Sorry about that graphic imagery.
Curse my ignorance and lust. Curse these emotions and this idiotic mind! I never should have let him lay a hand on me! But it is too late now. The deed has already been done. We were officially bound that night, bound together as one...in more than just one way.
For the first few months, we got along perfectly, holding up both ends of the deal. I practiced my magic in secret, all while allowing Herobrine to reside within my head. I suppose you could say that we were officially "dating", and...it was the best few months of my life. Such a pity when such wonderful memories are tarnished by blood and sorrow.
There were no issues, that is, until things slowly spiraled downhill. He took it too far. I did not want to be with him anymore, seeing my powers lashing out at my brother and feeling so disconnected from the world. Unable to control my own emotions, unable to tell what were my own thoughts and what were his.

"Why even bother with them if they don't accept you for who you are? I'm all you have. All you need." Only by saying things like that did I know whose thoughts were who, quickly losing track once more. "I am the only one who loves you!"

If I was not going insane before, then I definitely was then. I had memory gaps, forgetting waking up in the middle night, finding myself in other rooms of the house. Standing, looming over Armen as he slept, standing in the kitchen with a knife in my hand. I was so terrified and Herobrine would never answer my begs to understand what was going on. He acted like it was all some sick joke. And now I know why. I should have known sooner.
There was no love in his actions, no love in his heart. He had no heart. It was all just a lie so I would give him what he wanted, and like a fool, I took the bait. I deserve death, this punishment of eternal anguish. It's too late to turn back. My love is now a deep seeded hatred. My pride it now pure self disgust and hate. I am no better than him, a disgusting monster. No better than a filthy demon.
That monster betrayed me. I thought I had found someone who truly loved me... I thought I could trust him. Just another idiotic mistake on my part. I should have known better to make a pack with a demon, and to fall for one...beyond imbecilic.
Now, I truly am broken. I've sinned the greatest sins known to mortal kind, more deserving than anyone to burn in the everlasting flames of h**l. Unfortunately, I will never die as long as my soul is in this body, the rest of my humanity still latched this earth.
Even with my body in his hands, I can still feel pressure in my stomach like I am going to hurl and burning tears running down my face. I was able to feel my body under his control, their blood staining my clothing and skin, gore coating my being. I was not able to close my eyes and look away from the scene. I could not stop myself from murdering them so brutally.
It is my fault that this happened... It's my fault they are gone. It's my fault that He rose to power, and now they're all dead! My own mother, my own father, both dead. My own little brother... with his memories erased because of my one little mistake; my many, self centered mistakes.
All I could do was sit there in my mind, the cell of my own turmoil. After murdering my parents, he came to visit me there, his body covered in blood. I could hear his footsteps before he entered the room, the red room with orange and golden flames licking the walls. He always manifested himself in my form the only difference between us being his cold, dead glowing white eyes.
He mocked me for ever listening to him...for ever letting myself fall in love with him, proceeding in threatening to kill my little brother. I could not let that happen.
I was able to regain control for a short amount of time, able to wipe Armen's memory and write in my diary one last time. To write this. I guess this is it...embracing the suffering I deserve. To submit to Herobrine once and for all. I am so sorry for what I have done.
I looked up, gasping as my blurred, teary gaze rested upon a tall, slender being. It's chest glows from its essence shining through it's thin black, scaly skin. It's ears are pointed, lips jagged with knife sharp teeth and claws, towering around eight feet tall. It coos, staring at me with those eyes, magenta sclera and pupils of purple, green, and blue together in a beautiful combination. It's pupils are constricted into simple slits. Why does he not attack as we locked eyes with one another? Perhaps...it is fate.
My body is in so much pain, collapsing to my knees. I can not keep fighting this. I can feel myself slipping away. Wait... this creature... perhaps there is hope yet.

I have an idea...

I am not leaving Armen. Not now. Perhaps, this creature is my escape...

Drake, now you know the truth. The truth of what I did, of how this whole mess with me started and how my humanity created you. I trust you. I know you will protect Armen, that is what you are meant for. You and I do not have the same destiny, you are not like me! You are so much better, you are not me, your are...you... and even if I will never know you face to face, I know that you will be amazing. I knew that you, as your own being, will be better than me in every way. I know that you will not make the same mistakes as me. Take care of our brother and stay save. Good luck.

Forever yours,

You're humanity, Collin