You were the child of Dean and an angel. Your mother had taken you away, right before Dean's death, to go live some normal suburban life. She told herself she'd done it to keep you safe, but that was only partly true. It is something she'd wanted since she got a taste of Earth life. You hated it, so after a few years, ran away.
Several months, just running around, being reckless, and, admittedly, hurting people just cause you wanted to. And then you died. Not exactly by your own hand, but you hadn't fought against it either. So, you went to heaven.
Now, you were walking down a tree-lined road, looking up at the gaps of sunlight. When you heard a car behind you, you looked behind you to see the Impala. You knew exactly who was in it. So, you stuck out your thumb like a hitchhiker as your father drove up.
"Need a ride?" Dean asked but his eyes widened as he realized who you were.