Undertale AU Sin and Fluff request!

Sub!Reaper x Dom!Geno (Part One)

We sat quietly in the blank void, watching the small unspecified gender person walk through the snow knife in hand, killing everyone Geno loved. This had to be looped around at least 20 times a day, since the human seemed to take their time doing everything. I looked down at the small male leaned up onto my side, my arm around him but making sure my hand hadn't touched him, since you know..deathly touch and all. He was sleeping, his face calm but dark blue bags under his skeletal eye sockets, his hands slightly clutching the end of his scarf he held so dearly. I felt bad for him. Seeing everyone you love die over and over again, and never having to sleep, eat, and having nothing to do expect stare at the screen.

I got up, grabbing Geno and opening a portal to the house my brother and I shared. He was out currently, probably doing his job and what not before I carefully brought Geno to my room. We've been dating for about.. 3 months now, and he always called me an overprotective jerk although I was just looking out for his heath. Visiting him in my free time, fussing over him when he got a cold, and now I had taken him to the realm of gods (witch was most likely a banned option, but it was for the better.) and laid him down in my bed. His time was coming, and it was going to hurt me more than it hurt him for me to take his life, but it'd be all over and we can finally be together for eternity, his dead soul living on as a spirit of sorts. I put on some gloves I had gotten for the purpose of touching him, and grabbed his hand in mine before leaning down to gently kiss his hand before leaving him to rest quietly.

Geno had had his hamartia (the downfall in someone's life), a hard one at that. I've seen his soul before, when I lifted up his shirt to see the gash through his ribs while he was sleeping one time, seeing the glass shattered shard of glowing white. I always tried to convince him to let me wrap his ribs in bandages, and let me clean it with a cotton ball and ointment, to ensure that his cut would stay nice and clean of germs but he always persisted against it and would make up every excuse in the book- (and trust me, I've seen the books of every lie told out there) as to why he wouldn't clean it. I'd probably make him take a shower when he woke up.. And make sure that he'd come accustomed to living with me.

I went out, and did my job like usual, taking people's lives and all until my list was empty of scratched out names and no one else to kill for the day, normally too lazy or too reluctant to do my job, my job consisting of lemniscate (the infinity symbol), and me being a poobah (a powerful person) and all. Most saw me as a agelast (a person who never laughs), but things just weren't funny. I never really had many emotions, just a blank canvas doing their job and getting bliss out of killing others for fun. Makes me sound like a horrible person, but I'm not. I'm just doing what I do best, just wanting to spend time with the person who actually made me happy, who made me laugh, who made me want to feel emotions. Course, he didn't like me usually, acting like a stubborn animal around me but I swear I could feel my soul scintillate (emitting sparks), finding him algedonic to me like a drug, never wishing to leave his side..I walked through a portal, seeing life runcation (removing weeds) from her garden and humming softly. I walked over only to have a soft growl admit from her and growl at me slightly, sitting down in a patch of yellow tulips only for her to admit a screech from his vocal cords, covering her mouth as she saw the tulips that circled me quickly wilt and die away. "Hey Tori, I want to know if I could have some flowers." I said softly, feeling tired. The sun shining onto me always made me feel tired though, the black cloak I wore emitting warmth onto my unusually cold bones. She only replied at a huff, questioning me as to why I wanted such things if I was so quick and careless to kill off her flowers.I told her about Geno, and the fact that she seemed genuinely interested made me know that she would probably use this as blackmail against me, but after 8 minutes or so I had received some roses in a quiet light glass blue vase tied in a red ribbon, a small hand written note tucked in the ribbon of the vase before I went home, going into the bedroom and setting the vase down by Geno and laying down, cuddling up to him and lightly kissing his cheek, disturbing him and making him wake up and pandiculation (Stretching when tired or when waking up.), rubbing his eyes and looking tiredly at me with a hum. He didn't seem to notice the fact that we weren't in the black void anymore, or if he did he didn't mind and was just letting himself cuddle up to me.His movements were quiet, his body showing that he was tired and cold (even with a jacket on..) by the way he cuddled up to me and held me close, laying his skull down on my chest and relaxing quickly. "You took forever to come back home you idiot." He pointed out, unhappy with my response. "I know, I got you roses as an apology though.." I mumbled back, only to be pushed down to the bed as he got on top of me, settling himself down on my lap."I don't care, I missed you and I was cold." He said, a blank but slightly anger fueled stare on his face as he leaned down and began to bite and slightly lick my neck, grabbing my shoulder bones with his hands and slightly pushing me against the bed, my breath hitching as I gave in. "I'm sorry, I won't do it again..~" I hummed, wrapping my arms around his torso and pressing closer to him, smirking quietly to myself as he nibbled along my neck some more, stopping at a spot where I shrieked, biting into my fist in embarrassment and blushing brightly. Geno pulled away and smirked at me playfully, gently rubbing my chin with a chuckle. It was like his whole Tsundere demeanor had changed into a dominant personality. Just as he was about to lean down to kiss me, he got up and walked towards the door, turning around to give me a sly smile. "Maybe later, if you're good I'll give you the rest of the cake." And with that, he left me to be a needy mess. Snarky little jerk..