Paris and Doug Reinhardt Having Fun At at Mahiki in London

You scratch my back and I'll scratch yours is pretty much a given in showbusiness and Paris Hilton showed last night that she understands that as well as anyone.She has made her fondness of Princes Harry and William clear before so it came as no surprise when she took up a request from Harry's best friend to attend a fundraising party for a children's charity at a London nightclub.

The 28-year-old heiress was even spotted slipping the royals her phone number during her last visit to England.Guy Pelly, who is Mahiki's promotions manager, benefited in turn because he knew that wherever Paris goes the cameras are sure to follow.But it seems the attention was all too much for the socialite, who locked herself in the toilets for 20 minutes blubbing - and rather incredulously putting her tears down to the presence of the paparazzi.To help raise the celebrity attraction threshold Paris was joined by fellow reality TV star Kelly Osbourne and interior designer Nicky Haslam.

Among the party at the nightspot with Kelly and Paris - who have been friends for a number of years - were Kelly's fiance Luke Worrall who likewise stepped back to let the women step into the limelight.Before heading to the nightclub in aid of the Home Start charity Paris and Doug had dined at upmarket Piccadilly eaterie The Wolseley with Pelly, his girlfiend Susanna Warren and Haslam.One person who was noticeably absent was Sussex teenager Samuel Hextall whom Paris picked as her British Best Friend last month on her reality show.