Diva's alleged boyfriend found kissing another woman

Mariah Carey's alleged new boyfriend and video director, Brett Ratner was seen kissing another woman on same yacht he was fondling with the music diva.

We previously reported that Brett and Mariah were all loved-up in the same yacht on Sunday night despite, the video guy insisting they are just 'good friends' who are not romantically involved.

Eyewitnesses claim the diva and her music video director lover were looking like a couple.

But on the yacht, where Mariah was celebrating his birthday, Brett was photographed making out with a mysterious chick.

Should Mariah be worried?