Paris Hilton has denied she has secretly become engaged to rocker Benji Madden.

The socialite fuelled rumours of impending nuptials after she was spotted wearing a two-banded diamond ring on her wedding finger.

Hilton's on/off best friend Nicole Richie is reportedly set to wed Madden's twin brother Joel this summer, after the birth of their daughter Harlow in January.

And since the hotel heiress has been romantically involved with Benji, the couple has been dogged by rumours they are to follow suit and tie the knot.

But Hilton insists that although the pair has talked about marriage - she denies the ring means they are set to wed.

She tells People.com, "No, it's just a present. He's sweet."

"We want to stay together forever. I wouldn't do a Vegas (wedding). I don't know where or when but I do want it to be romantic."