You may believe that Ken Park is a porn movie when you look at the attached screenshots. But it's not. It's just extremely sexual and explicit.

15 minutes in the movie, a love scene engages between Mark Cirillo and Matt Brewer. At first they are in a sauna, and we can clearly see Mark Cirillo's big penis, which is erect.

The scene then moves on to to a jacuzzi. As Matt Brewer is getting in the water, we get a great view at his butt, and then his balls and dick when is gets in the water. He appears to be uncut and thick, with beautiful balls.

These scenes are from season 1 episode 3.

1 minute in the episode, we see Mike Vogel masturbating. There is no full frontal, just his facial expression.
3 minutes in the episode, he is taking a shower and we see his butt when he leaves the shower.

7 minutes in the episode, we get a great view of Adam Demos' butt. Very detailed, we can see the little bit of butt hair he got.

4 minutes in the movie, Avery Pfeiffer is naked on a bed. We see his circumcised penis several times and then his butt.

30 minutes in the movie, we see Thomas Jane's butt.

32 minutes in the movie, we see Thomas Jane's butt again.

38 minutes in the movie, there is a very quick view, on a few frames, of Thomas Jane's penis.

45 minutes in the movie, there is a good view of Olivier Gruner's butt.

In this movie, Colin Farrell appears fully naked and Matthew Davis only shows us his butt. But he has incredible abs, so we forgive him! In that scene, they are having sex with girls im the same bedroom. No foursome, just sharing the same bedroom. Colin's penis view is very brief as he walks in front of the camera.
31 minutes in the movie, Clifton Collins Jr drops his pants in front of his unit. He as a long shirt, so we can't see much. Only his dick head, cut, appears below the shirt.

25 minutes in the movie, Reid Ewing is naked in a living room. He has a great body. We briefly see his pubes and then his butt when he leaves the room.
33 and 34 minutes in the movie, we see Reid Ewing's butt again as he is naked in the back yard. He is hiding is penis with a cushion, but he is not doing a very good job and we can briefly see his dick.
37 minutes in the movie, a dog attacks his cushion, and we briefly see his penis again.
40 minutes in the movie, the dog is licking Reid Ewing's butt! We see Reid Ewing's dick again as he moves away from the dog.

40 minutes in the movie, Chad Connell and David Cameron are getting naked.
We see both butts.

72 minutes in the movie, Chad Connell is getting out of bed while naked. We see his circumcised penis and big balls.

77 minutes in the movie, Chad Connell and David Cameron are naked in bed and we see both butts again.

92 minutes in the movie, Chad Connell and David Cameron are swimming naked in a lake, and then we see them sunbathing in the nude. We only see their butts.

In this movie, you can see Jason Segel naked a lot... through long and repeated scenes. One of his costars is Russell Brand that you will see in some of the screen shots, although Russell does not appear fully nude.

5 minutes in the movie, we see Zachary Booth's butt as he is in bed with Thure Lindhardt

12 minutes in the movie, we get a quick view at Zachary Booth's butt and huge balls, and then we get a good view at his dick as Thure Lindhardt is climbing on top of him

35 minutes in the movie, we get another quick butt view of Zachary Booth and then we see 5 minutes in the movie, we see Zachary Booth's butt as he is in bed with 's butt

62 minutes in the movie we get a great view at Zachary Booth' butt and huge balls.