Horror Hunks: Nick Byer & Mark Justice in Pool Party Massacre (2017)

Pool Party Massacre centers on a group of vapid socialites who find their poolside summer hangout crashed by an unknown killer who stalks and murders them, one by one. Nick Byer got multiple shirtless scenes and was shown in skimpy undies for his role as goofball Clay, who attempted to get the ladies' attention. Mark Justice showed rear nudity for his character Troy's post-sex scene. He pulls his pants up, while discussing his tryst with one of the female characters. 

Nick Byer

Mark Justice