Sam and Dean 1
Okay this is set when Sam is six and Dean is eleven.
...
Sammy was afraid of the storm outside. Dad wasn't home yet and he was scared being in the bed alone. He looked over and saw Dean fast asleep, then over to the lounge wishing more than anything his dad was here. Dad would protect him, but he would probably be disappointed Sam was afraid if something as stupid as a storm. A strike of lightning lit up the room and Sam jumped at the following thunder. Panicking Sam threw the covers back and ran over to Deans bed.
He shook his brothers shoulder.
"Dean. Dean wake up!" His voice wad quiet and broke as the sobs took over his throat.
"Hmm. Sammy whats wrong?" Deans sleepy face was covered with concern and worry, his protective instincts kicking in the second he saw the tears streaming down sam's face.
"It-its the s-storm." Sam was shaking as the sobs racked his body.
Dean sat up.
"Its okay sammy. The storms outside its not gonna hurt you."
Sam wrapped his arms around deans waist and Dean returned the hug and Sam felt instantly safe. Dean moved back into bed.
"You wanna lay in here?"
Sam replied by crawling into Deans bed. He curled up to his big brothers chest and fell asleep, safe and sound in his brothers bed, knowing he'd protect him. He wouldn't judge Sam like John would. Sam was a kid and as long as thunder storms were all sammy was afraid of there was nothing Dean wouldn't do to stop the trivial fears as long as they were the only fears Sam had. Dean was so grateful sam didn't know about the monsters yet, that John hadn't ruined Sams childhood like he had his, that the only reason Sam had to cry was a bit of thunder. John could have walked away when their mum had died, and despite how hard that would have been at least Sam and Dean would have had a normal childhood. Sam wouldn't if been given a gun when he was afraid of the monster in the closet, john should have told him there was nothing to be afraid of.
Sam would be afraid his whole life, and he should be because he'll know whats out there, but as long as there where monsters out there to scare Sam, Dean would be there to protect him.