She wasn't speaking about her own sex life, but actually discussing her movie, "Lol," which features her teenage character having frank discussions about sex with her mother (Demi Moore). Miley's point was that sex doesn't necessarily have to be a taboo subject between parents and their daughters, and that being open about it can lead to healthier attitudes.
Of course, the media has taken it in a different direction. Tuesday morning on CBS, the hosts of "The Talk" said that Miley had publicly confirmed that she and Liam Hemsworth are sexually active -- when, in fact, she'd confirmed nothing of the sort. Sure, we can infer that from her quotes, but