Gifted Undertale Fanfic

Sans Genocide (Pt.1)

It had been a few days, Papyrus had forced Sans to stay in bed and recover hoping that this might cure his strange behavior. Sans had always been sneaking out at night but finally He understood how to use his powers to traverse time and space, One late night he finished his research and then took off to another timeline... His fathers words echoed in his mind Do not go into another timeline, it will scar you for life. You are not strong enough! But Sans ignored it but still felt it burning him in the back of his mind

When the world finally came to focus Sans was in SnowDin, it all looked normal besides the lack of people. Sans quickly headed to the garage and went down into the basement... A ghostly figure stood there father and he shook his head "sans this timeline is your darkest fears.... leave before your gone too" The figure turned to dust on the computer. Sans felt his heart start beating faster "f-father...." His mouth went dry after seeing his father again for only a moment. His blue eye activated anguish, anger and fear controled him "Come on you two" He said darkly. The Gaster Blasters nodded in unison and followed Sans out of the Garage....

Sans felt the little bit of innocence in his heart speak to him where is your little brother? He began to walk quickly through the underground, so much silence he felt his body crap up and feel alone...

"Papyrus?!" Sans called out into the snow. "PAPYRUS BUDDY! WHERE ARE YOU" He called, "COME ON PAPYRUS THIS ISNT TIME FOR A SILLY PRANK" He began to run around looking for any sign of his brother. When he saw something fluttering in the wind. He got closer and closer then he collapsed to his knees. He gently took the fluttering orange scarf into his arms and He felt everything inside him fill with rage "I WILL KILL HER, YOU DIRTY BROTHER KILLER WILL KNOW REAL PAIN, I WILL BREAK EVERY BONE IN HER BODY I WILL RIP HER IN HALF SET HER ON FIRE AND DESTROY HER EVEN MORE" His voice like a demon of hell. The non-stability of his emotions causes the timeline to mess up and suddenly there where glitched parts.... Sans got up but fell over again his legs too weak to walk any further. Sans got the G.B's to brace him as he tried to get to the judgement room "NO, DONT END NOW! I HAVE TO KILL HER!" but the timeline dispersed into thousands of fragments and he was thrown back to his original reality.... 

He woke up still in bed but this time different, He got up and the blue liquid like fire in his fingers burned everything that he touched. He hid his powers and went downstairs. "hey y/n sorry iv been so shady wanna head to Grillbys?" Sans offered in his usually friendly voice. Papyrus smiled at his brothers change but something still wasn't right... Papyrus waited a while before following behind them just in care

The two walked quietly in the snow for about 15 minutes, finally when they where far away from the house Sans felt the fire in him burn bright, "you don't think i dont know what you did?" Sans voice sounded like a demon, "you.... FILFTHY MURDERER" He hissed. Sans suddenly slammed his foot into the ground a wave of razor sharp bones rose out of the ground, Y/N fell back and started running away from Sans in fear and confusion

where do you think your going?