27 minutes in the movie, Tom Burke and Jay Taylor are comparing butts to see who has the nicest one. We clearly see both butts.

30 minutes in the movie, we see Tom Burke pubic hair and then his butt and his pubic hair again for the next 2 minutes.

Julian Morris shows his butt 33 minutes in the movie. In that scene we also see Tom Burke's butt and Julian Morris pubic hair.