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28 February 2013, 10:54
The 'Don't Wake Me Up' singer wore an open shirt showing off his toned stomach on a night out with the Bajan star.
Rihanna and Chris Brown were spotted out helping to celebrate P Diddy's birthday in Los Angeles this week after arriving back from their holiday break in Hawaii.
The reunited couple spent a number of days on the island US state last week to mark Rihanna's own birthday (20th February), and were seen dressed down for their Hollywood night out.
Rihanna opted to wear an oversized Homies sweatshirt by designer Brian Lichtenberg, which she wore as a minidress with nothing else on apart from shoes and a baseball cap.
The 'Diamonds' star was joined on the night out at Hollywood's Supperclub by her man Chris Brown, who wore a baseball shirt left unbuttoned to show off his toned six-pack stomach.
Check out a picture of Rihanna on her night out with Chris Brown below (Credit: Splash):
The two enjoyed several hours at the club for music mogul Diddy's birthday celebrations, before leaving together in Chris' red ferrari.
Earlier this week the 'Don't Wake Me Up' singer was quoted as saying he "deeply regrets" his actions which led to the couple's break-up in 2009, and described it as the "biggest mistake" of his night.
Rihanna has also defended Chris Brown in recent weeks when she gave an interview saying he is "no monster".