Rihanna was seen shopping at an Australia sex shop called 'The Tool Shed' earlier today and even though she was pictured smiling, her trousers popped open!

The 'S&M' singer, who sings about her strong sexual appetite, was thought to have purchased at least two bags of merchandise, which her male assistant was seen carrying just moments before she emerged from the Sydney store.

A spokesperson for 'The Tool Shed' has said that it was closed for Rihanna after the visit was already pre-arranged.

He said: "I can't say what she did or what she bought, it's top secret."

Rihanna's visit to the shop, which sells items from pole dancing equipment to bondage gear, has fuelled rumours that she's going to appear at Sydney's Mardi Gras festival and perform her single 'S&M'.