I'll get you back Voltron AU)

Trust or not?

My heart ached. Matt was on the floor, crying. I let my eyes cloud.
"Matthew," I say calmly.
"Get your filthy hands off of me, you killed my father!" He yelled. My heart was pierced, he was dead? My voice rose up. I fell to the floor. The cold dirty floor. Tears escaped my eyes. Dad, no. My voice erupted with a shriek of pain. I screamed. Guards eventually coming to see shy. They looked wide-eyed.
"You killed him!" He yelled at me once more. I held where my heart should be. Soon enough Lotor had come.
"What is the meaning of this," he said seeing me hunched over and crying, a small puddle of emission as my knees. Matt kicked me repeatedly before another prisoner pulled him off of me. I looked up at him. He saw my eyes. But so did Lotor.
"Katelyn, why did he hurt you?" Lotors concerned voice asked as he held me in a tight embrace.
"Dads, dead, Dads, dead." I repeated. Calming down slightly.
"Wait, Katie! My little sister, it's impossible!" Matt yelled. Soon enough I felt my energy gone from the crying. So I lay limp in Lotors grasp, I didn't care anymore. Mom was dead, Dad was dead. My life was over. Matt dislikes me. Everything I had has disappeared...

Matts POV

Katie, my Katie was alive, she was moving. But I abused my own little sister. How do I live with myself? Dads not really dead, I found that out when she was limp in Lotors arms. I remember the conversation:

"It was a trick, you just abused your little sister." Lotor said. Holding her close. I looked down. "Gladiator ring?" A guard asked. "No, the lab." Lotor replied. The lab was the worst. Hagar got to do whatever she wanted to do. The light whimpering if Pidge let Lotor be more merciful.
"Only let Hagar harm him slightly, he is my favourite prisoners brother." The guards and I looked confused at him. "She would try and escape if I killed you, so no killing just a little bit of pain." With that I was dragged along to the lab.