2 minutes in episode 1, we see Fab Filippo's pubes and butt. Then we see his hairy butt crack and in briefly in between his legs what appears to be a sock on his dick.
3 minutes in episode 1, on one frame we see Randy Harrison's dick.
41 minutes in episode 1, we see Justin Tensen naked. We briefly see his balls and uncut dick, and then his nice butt. We also see Gale Harold's butt.

42 minutes in episode 2, there are naked extras with full frontal.

3 minutes in episode 3, we see an extra naked with a full frontal of his big dick.
12 minutes in episode 3, we see more frontal nudity from extras at the gym, one is uncut and one is cut.

18 minutes in episode 4, we see Gale Harold's butt.

1 minute in episode 6, we see Robert Gant's butt and then Hal Sparks's.
12 minutes in episode 6, a series of 5 dicks from extras, 5 cut and 2 uncut.

32 minutes in episode 8, we see the butt of Harris Allan.

17 minutes in episode 9, Trevor Hardy is showing his cut penis.
41 minutes in episode 9, we briefly see Randy Harrison's butt.

29 minutes in episode 10, there are naked extras.

19 minutes in episode 11, we see extras' butts.
28 minutes in episode 11, we see Gale Harold's butt.

28 minutes in episode 12, we briefly see Harris Allan's butt.
42 minutes in episode 12, we see briefly see a dark shot of Peter Paige's penis and then a good view at Scott Lowell's butt.

4 minutes in episode 13, we see Scott Lowell's butt.