Sabrina Guinness Sabrina Guinness Celebs will forever be fending off rumours...

This time it's Sir Paul McCartney on his relationship with heiress Sabrina Guinness.

After the ex-Beatle was recently papped outside the home of Miss Guinness, rumours were rife that the two are secretly dating.

But Paul and Sabrina are just friends, his spokesman Stuart Bell told the Press Association today:

"There is no relationship beyond friendship."

Paul himself told the Daily Mirror: "I realise everyone wants to see me with a new bird right now and that's very flattering.

"I have known this lady for a while. We enjoy each other's company. When we get together we talk about stuff like the environment and Al Gore, things like that.

Paul McCartneyPaul McCartney"It's not really a big thing. We have known each other a long time."

It just goes to show that unlike us normal folk, celebs can't go anywhere without sparking rumours of a romance...