Mark Gerber is seen first naked 45 minutes in the movie. He is naked by a lake. Then he starts masturbating. In a later scene, Mark Gerber poses as a nude model. We get to see his cut dick in close-up. It's pretty impressive! Mark is quite a hunk!
At the beginning of the movie, Sam Rockwell strips naked and jumps from a bridge in a river. As he does that, we can see his butt and his dick. He is cut. After his swim, he gets back to his truck naked and we can see him again with a full frontal. Later in the movie, he is having sex with a girl and we can see his butt. His butt looks like a peach with a thin layer of hair.