In season 2, episode 7, at the beginning of the episode, Sullivan Stapleton has a long sex scene. We see his smooth butt and his hairy chest.
In season 2, episode 8, 3 minutes in the episode, Matthew Leitch is naked in bed. We see his nice butt. Then, when he turns offer, we see his balls in between his legs, and brielfy, the tip of his uncut dick.
In season 2, episode 9, 5 minutes in the episode, Philip Winchester is naked in bed. We see his amazing body, as well as his pubes.
In season 3, episode 3, 13 minutes in the episode, we see Sullivan Stapleton's butt.