Rihanna and Chris Brown could be hooking up behind Brown’s current girlfriend’s back, but if they are, they’re being super stealthy about it…because the three of them are overseas together.

Rumors are flying this week that the former couple have been meeting up for secret dinners and romantic liaisons in such exotic locations as Monaco and Cannes, France. Word is, Brown is there to shoot a video, but no one is sure exactly why Rihanna is there, unless she’s on vacation. What has her friends and family worried are the stories of hook-ups, especially after Brown was seen boarding her yacht and heading into her cabin at four a.m. The latest story is of the two of them kissing at a yacht party in Cannes in front of several people.

The tricky thing is, Brown’s girlfriend Karrueche Tran is there too, spending time with him while he’s working. If he is indeed hooking up with Rihanna, things could get ugly real soon.