Rihanna is back on the prowl, but guys who are a bit short in the trouser department may as well forget it.

The singer, who split from boyfriend Chris Brown earlier this year after he beat her up, tells German magazine Bravo that she is ready to bring a man in her life, but only one who is well endowed.

Even though she is on the lookout for a guy, she says that she doesn't want anything serious and is happy being single and just flirting with blokes she meets.

"He has to be good in bed and the size matters. You know what I mean? The inner beauty counts as well, but without a toy it doesn't make it fun," she tells the magazine.

The Umbrella singer was recently rumoured to be dating fellow pop star Justin Timberlake, with Showbiz Spy claiming that the pair enjoyed several dinner dates in New York recently.

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