Spencer Pratt, one of the stars of the MTV show The Hills: New Beginnings has claimed that Kaitlynn Carter was creeping behind her husband Brody Jenner's back with Miley Cyrus before they separated.

"It's tough for me to listen to Kaitlynn complain about people talking about her allegedly open relationship with Brody when we know she had a thing going with Miley," he said. "She already had something going on with her when these scenes were filming — maybe not physically, but definitely emotionally. No one's judging you for whatever it is you and Brody do when he's not sleeping in his car. We just don't want people to lie about their lives," he told Cosmopolitan.

He continued, "Maybe you shouldn't have gone on television. It's called a reality show, hon. And the reality is that Brody's been talking about your sex life on his podcast for years." 

Miley went viral after a paparazzi snapped pictures of her and Kaitlynn kissing on a yacht. According to recent reports, Miley and Kaitlynn are now living together.