How do you find out if your friend is gay or not? You strip in front of them to testify! Or so does socialite and reality TV star Kim Kardashian. In a bizzare revelation, Kim admitted on last night's episode of Kourtney & Kim Take New York that she changed in front of pal Jonathan Cheban to see if he's gay.Her estranged husband Kris was sure that PR guru Jonathan is homosexual but Kim wasn't as she had never discussed Cheban's private life with him. So the hot star decided to find out!When Kim stripped down to her bra in the closet of her New York hotel room, her PR buddy averted his eyes.Kim told Kris on the show: "I got changed in front of him to see if he would look but he didn't."However, she concluded that it could have been out of courtesy.And later in that episode, Cheban goes out on a date with a woman!