Supernatural_Cas wanna free hug

I wanna hug Sam too!  Thanks for posting this! 

I think Sam has the same problem with self-esteem as his brother. It's instinctive--to protect a pure angel from your own impurity by not letting him contaminate himself by touching your flesh. That, or he was afraid he'd get an erection if Cas' warm body was all pressed against his very interested body.