Supernatural (TV series)/Recap/S04/E09 I Know What You Did Last Summer

Season 4, Episode 9:

I Know What You Did Last Summer
Ruby tells Sam and Dean that a powerful demon named Alastair is searching for a girl named Anna who can hear the angels' conversations. The three set out to find Anna but once they do, Alastair attacks them and Ruby escapes with the girl. Believing they were set up, Dean lashes out at Sam for trusting Ruby, so Sam tells him what happened during those months Dean was in Hell and how Ruby saved his life. He also reveals they had sex. Castiel and Uriel return and demand to be taken to Anna, but not for the reason Dean thinks.

Tropes

 * Brain Bleach: Dean did not need to hear about his brother doing it with a demon.
 * Couldn't Find a Pen: Anna uses her own blood to draw the symbol on the mirror.
 * Fan Service: Sam and Ruby getting it on in the cabin.
 * Sassy Black Woman: The body Ruby possesses to deliver a message.
 * Tears of Blood: This happens to a statue in the church.