Cooper Koch

Odds are good that it is a prosthetic
Why would it be a prosthetic? He’s a B movie actor at best. It doesn’t look fake to me with the big ole bush that would be required to hide if it were a prosthetic.

Even the new guys from the last season of euphoria showed full cock in the shower scene no problem. A highly rated and popular show.
 
Odds are good that it is a prosthetic
First the reports of nudity weren't real. Now the actor who has appeared nude in almost every previous project (including showing his dick) is wearing a prosthetic. Y'all are truly exasperating.