Sammy is your big brother! He had gone away for a long time. He'd ran off to Stanford to pursue law school. He had been tired of dad bossing them around about hunting, it wasn't his dream. About three years later Dean got him to finally come back.
So now it was just you, Sam and Dean. But you'd always been close with Sam. He always told you that you could do big things and that there was so much out in the world. Sam was back now, but he has an interview for law school on Monday. So that meant you have four days to spend together. The onlt reason he cane back was to help dean find dad.
Sam was upset and reluctant about coming back. But when you saw him, your eyes lit up and you held him tightly. You missed your big bro so much. Dean waited outside the car