Mariah Carey's frisky billionaire lover snuggles into buxom beauty

For the last week and a half they've flaunted their new romance around Europe for all to see as they cruise around the Mediterranean together.

And it appears that Mariah Carey's new beau James Packer can't quite get enough of the buxom pop star. 

The billionaire casino mogul was seen getting frisky with the 45-year-old singer last week, snuggling into her while they frolicked aboard his $50 million luxury liner, the Arctic P.