22 minutes in the movie, Guillermo Villegas is getting naked to make love to a woman. We see his nice bubble butt and briefly his uncut dick.
24 minutes in the movie, we get a good view at Guillermo Villegas' ass crack, which is slightly hairy, as the woman pulls his butt cheeks apart.

45 minutes in the movie, we see Jorge Becerra's large cut dick as he is having casual gay sex.

In episode 5 of season 3, we get nudity from Will Tudor, Nikolaj Coster-Waldau and Kit Harington.
Will Tudor is naked in bed 51 minutes in the movie. As the steps out of the bed, we see his nice uncut penis. The picture is a bit dark. Then Will Tudor gets back in bed with his lover, and we see his bubble butt and somewhat hairy crack.