My Sister is So Gay (2016)

Overview

Seth, a middle-aged gay man with an inexplicably hot young boyfriend, has his world turned upside down when his homophobic sister shows up. She caught her husband cheating with her best friend that she doesn't realize she's in love with. Enter Loni Anderson as their over-sexed mother determined to sort out her children's lives as long as they keep her glass topped off with vodka.