Khloe Kardashian has revealed she was just 15 year-old when she lost her virginity. In a video posted to sister Kourtney Kardashian's paid-for website, KourtneyKardashian.com, the reality star opened up about her first sexual encounter. she said 'I think it was 15?' Kourtney asked her, as the two played a game called Know Thy Sister.
