Miley Cyrus is 'pretty serious' with Mike WiLL Made It

Los Angeles - Miley Cyrus is reportedly in a secret relationship with Mike WiLL Made It.

The Wrecking Ball hitmaker, who was first linked to the music producer following her split from fiancé Liam Hemsworth in September 2013, is said to have been quietly dating him for nine months and their romance is now getting "pretty serious".

A source told Us Weekly: "Everybody in her circle knows they've been together this whole time."

Another insider said that the 25-year-old producer, who worked on Miley's latest album Bangerz, has also formed a close bond with Miley's mother, Tish Cyrus, adding: "Tish says he's part of the family."

An eyewitness said the duo were "all over each other" at the BET Awards afterparty on June 28.

The We Can't Stop singer was originally thought to have only enjoyed a brief fling with Mike, as she was also spotted cosying up to a number of other men, including her assistant Cheyne Thomas, Twilight Saga star Kellan Lutz and Rolling Stone photographer Theo Wenner after splitting from her ex fiance Liam Hemsworth last year.

The duo has been posting photo's of them hanging out, on their separate social media accounts for the past few months.

Check out the snaps from Twitter and Instagram:

@MikeWiLLMadeIt ?????????????? pic.twitter.com/4qB20AS83b

— Miley Ray Cyrus (@MileyCyrus) February 21, 2013