Better Together (Singtale!Sans x Reader)

You had a decent life, your parents never fought, you had a little sister you loved and a pet cat named Binx. You never thought anything could pull you all apart, untill the sudden death of your mother and your father turned abusive. You loved to sing to pass the time and get your mind off everything else. One day your dad beat you and your sister to your limits. So you left to go to mount Ebott (is that how you spell it?) where nobody would find you both. But on your way up your sister sliped into a hole, you grabed her hand but failed. You thought it was the end while you fell excepting your fate while your sister screamed bloody murder. That was the end.. Or was it?

Frisk will be included in this! I will make their gender female, Dont get upset if you think of them as a guy! Im just putting what I think down! Also Frisk WILL be able to talk.