Currently you were tied to a chair in the middle of a big pentagram on the ceiling above you. In there you were trapped and couldn't get out with the demon inside you.
The Winchester brothers Sam and Dean were standing in the room, studying you. Since you were posessed by a demon you were just grinning at them. You were still there but you couldn't control anything. Only the demon inside you could.
Dean then slowly came up to you with a knife and held it to your throat.
"If you don't tell us about that demon who killed our mom i'll kill you." He said in a deep voice.
The demon inside you just barked out a loud laugh, trowing your head back. Dean clenched his theeth and pressed the knife into your shoulder slightly. Some holy water he put on it made your skin burn away which made you hiss.
Then Bobby walked in and his eyes widened. He has been trying to find the stuff to get the demon out of your body. "What are you doing??" He quickly grabbed Dean by his shoulders and pulled him back.
"She's just a girl. The demon is controlling her but there's still a living girl inside of her. She can't control this." Bobby explained and Sam and Dean immediately felt guilt rising in their stomachs.
Sam looked back at you and studied you, trying to imagine you without a demon inside you, maybe being the sweetest person ever. He felt horrible.
Dean also looked to the floor for a moment before Bobby spoke again. "We need to get that demon bitch out. I have the spell for it." He hands Sam the journal their dad, John, wrote with spells in it.