Furthermore -
Okay, I know Sam's gonna go atone for kicking puppies and setting trash cans on fire and knocking over port-a-potties with people locked inside them. But what I'm imagining is Sam going around and finding all the women he had crazy sex with and being like, "I am so sorry." *Empathy face* "So, so sorry."
And, to a woman, they're all like, "Huh? I keep trying to nominate you for the Nobel Peace Prize but the committee's too frigid." And then he looks around and notices how they've got their offices outfitted and realizes they've all become tantric sex therapists, empowered by life-changing ten hour marathon sex with a hedonistic soulless dude.
And then they make a move for his fly, and he's backing up all concerned-forehead and, "No really, I apologize. I wasn't myself. I feel terrible." And the women are like, "Okay. You're right. I'm really struggling to recover from the trauma. But you can make it up to me." Sam: *hopeful redemption-seeking face* Legion of satisfied women: "Just do that thing with your mouth again."
And then Sam comes home all disheveled and sweaty and covered in bite marks and tells Dean, "Redemption is hard work." And then he has to hug Dean a little to cope with his FEELINGS.