You and Dean were on a ‘hunting’ trip. You both were in his car, him driving of course.

“My brother, Sam. We’re going to get it.” He turned to look at you, you remember him mentioning Sam but not that much.

“Alright.” You agreed. You both arrived at Sam’s place and you waited in the car as Dean walked in. They both came out and Dean told you to get out and greet Sam. You got out of the car.