Article continues below advertisementDonald Trump Jr. and Aubrey O'Day's Alleged Affair Began in 2011Source: MEGADonald Trump Jr. was still married to Vanessa Trump when his alleged affair with Aubrey O'Day happened.Aubrey O'Day has repeatedly claimed she had an affair with Donald Trump Jr. more than a decade ago.They allegedly first hooked up in 2011, when Don Jr. served as an adviser on Donald Trump's show, Celebrity Apprentice. The entanglement reportedly ended when his then-wife, Vanessa Trump, discovered their text messages.Article continues below advertisementReports of Donald Trump Jr.