This Amazon TV series is set in Germany and features hot guys with a wild sexual life arounds clubs and drugs.
In episode one we see Jannis Niewöhner and Nils-Philipp Kutzner's butts as they are sharing the same bed naked.
If you pose frame by frame, you will be able to see the very tip of Jannis Niewöhner's thick uncut dick.
The frontal nudity is in episode 4, when Julius Nitschkoff and Ludwig Simon are fooling around in bed. After this, we see Julius Nitschkoff's uncut dick and smooth butt as he moves to the bathroom.