Chris Brown has been hanging out with Rihanna's family

Though they kept apart from one another, insiders say they are seeing a lot of each other in private and Chris was with Rihanna, her cousins and grandfather Lional Brathwaite at Jay-Z's 40/40 venue in New York to watch the NBA game between Miami Heat and Boston Celtics last weekend.

A source told the New York Post newspaper: Rihanna arrived first in a yellow cab, with her family and friends, and was escorted to a private room. Brown arrived a little later and joined her and her family. They sat on the same couch together rooting for the Heat. There was no sign of his girlfriend Karreueche Tran.

Chris and his friends left after the game, while Rihanna's group stayed longer.

Their rekindled friendship is said to be a source of concern to the 'We Found Love' singer's management and insiders think it may delay her from releasing any new music in case their is a backlash over the situation, particularly after the criticism Rihanna received for working with Chris on two tracks, 'Turn Up the Music' and 'Birthday Cake', earlier this year.

The source said: Everyone in the business assumes she and Chris are getting back together, and it is only a matter of time before theyll be more public about it.

Its like she is testing the water - first they work on music together, then they hang out in a friendly way, so the public wont be completely shocked when they step out together publicly.

There is also a tug of war at Roc Nation over the final say on what she is doing. But everyone agrees they cant control Rihanna and cant stop her seeing Chris, no matter how much they fear the negative public reaction will be. It means she probably wont release another album this year, for fear of a backlash.