Their reps may deny they’re seeing eachother, but Chris Brown and Rihanna have some serious explaining to do!

The “Where Have You Been” hitmaker and her “Turn Up The Music” ex-boyfriend were reportedly spotted playing a little game of tongue hockey during a private party on a yacht in Saint Tropez – where they’re both on holiday – just hours after Brown jetted into the South of France last Sunday (July 22).

They obviously wasted no time catching up, and spent the evening by eachother’s side, kissing in plain view, right in front of onlookers, Kanye West, Kim Kardashian and Leonardo DiCaprio.

YIKES!

Does Karrueche know about this?

A source on the boat said:

“It was a very private party on a yacht, so they were not worried.”

As careful as the former couple may be about being seen and photographed together, RiRi and Breezy have been making the most of their time away from home, regularly meeting eachother, and even enjoying a romantic dinner together in Monaco, sources say.

Earlier this week, Brown’s representative insisted that he had flown to the South of France for business and not to rekindle his romance with his ex, but does anyone really believe that?