In Our Nature (2012)

A scheduling conflict leads to a heart-to-heart between an estranged father and son in In Our Nature (2012). Friday Night Lights' Zach Gilford stars as Seth, who plans to propose to his girlfriend Andie (Jena Malone) while on a romantic weekend getaway at his family's cabin. But just as the two are christening the cabin with some nookie, in walks Seth's estranged father Gil (John Slattery) and his new lover Vicky (Gabrielle Union). Yikes. But what's even more mortifying is that there isn’t much flesh in this flick. Both John Slattery and Zach Gilford shuck their shirts in a couple scenes, giving us a generous look at their sexy physiques. Go ahead and masturbate, it’s in your nature!