San's Apology *UPDATED VERSION*

It was time, we had reached an impasse.
I stood alone for the first moment since the battle started. Chara had receded to a corner of my mind, watching me silently. She knew that I was too tired to continue on with out giving her full control. She was letting me make the decision.
"Kid, I know this is a hard decision to make, so please choose carefully...." Sans spoke softly.
He was tired to. Sweat dripped from his brow. His pinpricks flickered slowly like he couldn't keep his eyes open for much longer. He too knew neither of us could last much longer. That soon either one of us would die depending on the decision I'd make.
I have never had a genocide run before. I didn't know what to expect. I couldn't look at him for more than a moment. Guilt eating me out from the inside, shame burning my skin. I could feel my sins crawling on my back.
I stared for a long moment at the remnants of broken blue and white bones that littered the floor. The scorch marks scattered around the hall leaving grooves and rubble int their wake. The acrid smell of burning permeating the room.
Considering my options, knowing full well there was only one decision that would fix all this. To give everyone the ending they deserved.