Rihanna reportedly believes that Chris Brown is responsible for leaking nude photographs of her on the net – and is plotting a fitting revenge.

According to a British report, the Umbrella star is planning an X-rated 'leak' of her own.

"She has less than flattering nude pictures of him that she plans on leaking,” a source reportedly tells Now.

"Rihanna says he’d be really embarrassed by them."

If these claims are true, Rihanna is gonna have to re-think the revenge plot now her cover has been blown.

"Another thing she’s been talking about is spreading rumours about Chris," continues the insider.

"She wants to ruin his sexy image by letting it be known that he was a bit of a novice in the bedroom when they met and that she taught him everything he knows."

Meanwhile, Rihanna is expected to appear as a possible prosecution witness against Chris during a preliminary court hearing on 22 June.

The hearing will determine if there is enough evidence to continue an assault case against her ex-boyfriend, following their alleged altercation in February.