Black and White (Chess!Tale Sans x Abused!Reader

The Nightmare

~ Nightblight's Prov ~ 

I went into the kitchen to make lunch. I could help, but twitch and let the adrenaline out. Once I got that done I looked to see what I had. "Hey! Guys! What do you want? Pepperoni Pizza? Or Cheese burgers?" I stood in the kitchen waiting for a reply. "I'll pick Cheese Burgers." Y/N replied, "I'll pick Cheese Burgers as well." Sans says leaning on Y/N's shoulder. I smiled and went to my backyard and started up the grill. 

~ Y/N Prov. ~

Nightblight walked out, so it left me and Sans alone. He was still leaning on my shoulder. 'Probably sleepy' I thought as I lay my head on his. I heard soft snoring. I sighed and kissed him on the head. I look down at his face to see a blue hue on his face. I gasp, "You faker." I softly say in case he wasn't awake. You get a soft chuckle from Sans. "At least I got something out of it." He says with a smirk. I turn away and form a pouting face. He laughs, then I'm lifted with a blue aura and set down on Sans' lap. I hear a sigh as a head is placed on mine. I laid on his chest looking strait at the TV. I sighed and thought for a while. I snapped out of my thoughts in shock as I didn't notice that Sans had teleported in front of me. I looked up with shock clearly on my face. He went face to face with me. He chuckled, "Got you.~" He cooed. He went for a kiss, but I stopped him. He whined, "Not, while we're at NIghtblight's house." I wanted to keep our lover to ourselves, so we won't gross people out. He sadly nodded and sat beside me. 

~ Sans Prov. ~

I was sad because I couldn't get a kiss. At least I could go with her. I start to lean onto her shoulder. I sat there sleepily. I yawned, but wasn't able to fall asleep. I think Y/N found out. She started to sing a lullaby 

Just listen to it, I'm not doing lyrics. I'm not up for that kinda stuff. Taking it a bit slow.

After she sung to beautiful song, I had fallen asleep. 

~Nightmare~

I looked around to see snow. "N- No." I whispered in fright. I walked up a road. I knew where I was. I was in Snowdin. I continue walking up the snowy road, to see something I wish would never happen. I saw Papyrus' scarf. "No, NO no No NO NO NO." I kept on screaming. The next louder than the next. I grabbed his scarf and wrapped it around my neck. I continue walking to see if I could find the kid. No, not kid. Demon. 

I walked through Waterfall, Hotland until I reached the core. I walked to the middle of the core to find something I wish to never see. I reached out and grabbed Y/N's hoodie. I sobbed, but continued walking. I wondered, 'Who's in the judgement hall?' I went into the elevator and waited to get into the judgement hall. 

Once I got into the Judgement hall I saw what I wouldn't expect. Nightblight, with blood on her. I was angered, until I saw The Demon. Nightblight was fighting the demon. Reset after Reset, Chara never killed Nightblight. She got killed either on the 5th or 3rd time Nightblight attacked, but once it was different. After Nightblight had killed Chara for the 150th time, the timeline reset fully. But I woke up. 

~ Awake ~

I woke up with Y/N's lips pressed against mine. I was shocked at first, but it calmed me down. She broke the kiss with tears in her eyes. "Sans, want to talk about it?" She asked with tear stains. I shook my head. I didn't want to tell her about it, because she would maybe have the nightmares too. "I tried to shake you, but you wouldn't wake up, so I tried a kiss." She explained. I nodded to say 'I understand' then I went into thought. 'I hadn't had a nightmare like that in ages. They stopped after I saved Y/N.' I was then snapped out of my thoughts by Nightblight coming in. "Lunch is ready!" She exclaimed with a smile upon her face. I sighed and got up. Me and Y/N walked to the table hand in hand.