London, March 17 (IANS) Socialite Paris Hilton's younger sister Nicky may soon be walking down the aisle as her long-time boyfriend prepares to propose to her.

The 26-year-old socialite and fashion designer has been dating TV producer David Katzenberg since 2006, two years after her marriage to businessman Todd Andrew Meister was annulled.

She had dismissed rumours of an engagement to Katzenberg in 2008, but her boyfriend is now said to be preparing to propose her, reports dailystar.co.uk.

'Obviously, David would never propose around Oscar time. But now that awards season is over, everyone thinks he'll ask her soon,' said a source.