American television personality, radio host, entrepreneur, model, and celebutante 27 years-old Khloe Kardashian seem to need to learn about the importance of wearing a bra. When she went on Fox & Friends with sister Kourtney, Kim Kardashian sister made the mistake wearing a see-through shirt and no bra. And the result, we were treated to the beauty of its assets for free. She slipped a nip on live TV (Fox has since pulled the video).