(Under Moderate rating for the blood)
Cas LOVES to have small skulls, especially skulls of lion cubs. If she finds a cub, most of the time only in the plains does she do this, she'll kill it and tote around the head.
In this setting, she is showing off to Dash, whom is suppose to be Mr Evil Lion, and he is a bit disturbed by Cas's fascination with skulls.
Dash belongs to BlackDevil49 on dA.