Singer Rihanna performs on NBC's 'Today' show in New York, June 20, 2008. [Agencies]

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Rihanna has reportedly been told to stop wearing such revealing outfits by her alleged boyfriend. Singer Chris Brown is apparently worried Rihanna will attract too many male admirers unless she covers up her sexy curves.

A source said: "Chris adores her, but he gets a little jealous when she is strutting her stuff. Her stage costumes are racy, and when she is not performing, she likes to dress to impress."

Despite Chris' jealous streak, the 'Umbrella' star - who is still yet to confirm she and the 19-year-old pop hunk are dating - is determined to continue showing off her fantastic figure.

The source added: "She is sexy and likes to dress sexy." Earlier this week, Chris insisted he wasn't prepared to speak about his apparent romance with 20-year-old Rihanna.

The 'Forever' singer - who has been spotted kissing the pop beauty on numerous occasions - said: "Nobody wants to focus on what's positive, everybody just wants to know about my personal life. "Every interview I do, it's like, 'So, how are you and such and such doing?' And I'm like, 'I don't know you, why you all in my business?' "