Her provocative persona has made her a sex symbol across the globe and her songs are not for the fainthearted but now pop superstar Rihanna has taken it one step further and admitted to using a porn site.

The single 23-year-old singer, who is known for her eyebrow raising antics, made the revelation during a conversation on Twitter following a gig in Portugal earlier this month.

The raunchy star posted a message on her account saying: "I'm n a boom ass mood today" which she later revealed meant that she had had a great day.

A user called @DaRealAyumYum responded by posting the suggestive message: "You got some d**k Huh"

To which the Bajan singer then replied: "@DaRealAyumYum porhub that's abt it" making a not so subtle reference to the adult website Pornhub.com

Another mischievous user soon gets in on the action and makes a point of making clear the website the singer is talking about by tweeting : " *pornhub RT @rihanna @DaRealAyumYum porhub that's abt it"

After realised that the cat was clearly out of the bag the singer explains that her reason for being discreet was to protect her underage followers.

She tweeted: " @iEatPrettyC**TS the grown ups know! Can't send the kiddies searchin' (shhh)"

The S&M hit maker has never been one to shy away from her sexuality. In March this year she was spotted visiting a sex shop in Sydney, Australia called the Tool Shed. She reportedly left the store with two bags full of purchases.

Portugal Twitter Australia