Mariah Carey and Australian billionaire James Packer are now living together at his Beverly Hills estate.

According to TMZ, after just five months of dating and recent reports that the two might be going through a cooling off phase in their union, the "Hero" singer and the business mogul recently took the huge step in their relationship.

Reports are Nick Cannon's ex took "a lot more than clothes" for the move, including bedding and furniture and the two have already discussed the prospect of marriage.

The new arrangement comes after Radar Online recently reported the two were experiencing some angst following a trip to China described as a "complete disaster."

"James seemed to feel that, because he is an investor in the casino, he could call the shots," a source said of the trip which included a performance by Carey. "He was barking orders at Mariah like he was her master. Anyone who knows Mariah knows that she does not take kindly to being told what to do."

Word is that was enough to prompt Carey to rethink the relationship and suddenly place their whirlwind relationship in jeopardy. The two began dating over the summer, at one point embarking on a yacht cruise across the Mediterranean footed by Packer.

"It doesn't matter how much money he has, because it's not like she is in need of his cash," a source said. "She really felt like she was falling head-over-heels in love with him and now she is just not sure. He did a real good job at buttering her up and making her feel like a princess, but this China trip was a total turning point in the relationship."

Carey and soon-to-be ex-husband Cannon pulled the plug on their six-year relationship earlier this year, with Cannon formally filing for divorce citing irreconcilable differences.