Leonardo DiCaprio and Rihanna have reportedly been spotted flirting at a party at the Playboy Mansion.

The pair both attended designer Nikki Erwin’s 30th birthday party at the weekend and rumours have been circulating online that the Wolf Of Wall Street star and the Diamonds singer were seen kissing.

But a source who was at the party told E! News: “No one was making out. They are just friends. That’s it.

Rihanna
(Jordan Strauss/Invision/AP, File)

“There was a big group dancing. Tom Hardy, Naomi Campbell and a bunch of other people. Everyone was having a good time together. Maybe a little bit of friendly flirting but no scandal here.”

Birthday girl Nikki’s boyfriend is movie producer Chuck Pacheco, whose films include Alpha Dogs and My Sister’s Keeper. He is a good friend of Leo’s and invited a string of stars to the bash.

Leonardo DiCaprio speaks at the State Department's 'Our Ocean' conference
(Cliff Owen/AP)

Other guests included Paris Hilton, Hilary Duff, Pamela Anderson, 50 Cent and Tobey Maguire.