VIDEO : 'KUWTK' Reveals Rob Kardashian Had Sex With a Kim Kardashian Lookalike

Sunday's all-new Keeping Up With the Kardashians brought family awkwardness to a whole new level when Rob and Khloe Kardashian took a bizarrely uncomfortable walk down super-gross memory lane. Rob came to Khloe's house to hang out, but Khloe was still in bed, suffering from menstrual cramps and a fever. As Rob took her temperature with the back of his hand pressed to her forehead, Khloe raised a question, "Do you remember when you [had sex with] the girl who won the Kim Kardashian lookalike contest?"