The 24-year old 'Diamonds' singer who reunited earlier this year with the 'Turn up the Music' hitmaker before announcing their split this month was spotted spending Cristmas with Brown watching LA Lakers in action.
Both arrived in the same car but entered the Staples Centre separately before meeting up again inside.
The patch up, however, does not seem to be full and final. Rihanna is still facing stiff competition from Chris' ex-girlfriend Karrueche Tran, reported Sun online.
"Rihanna and Karrueche are really fighting over Chris and have been sending each other coded messages online for weeks," a source told The Sun newspaper.
"They hate each other but Chris seems content to carry on with them at the same time. They were competing over Christmas to send Chris the most loved-up messages possible. Rihanna may have got Chris on Christmas Day but he sees no reason not to see Karrueche too," he added.