AceShowbiz -

His divorce to estranged wife Heather Mills is not yet finalized, but Paul McCartney apparently is back in the dating saddle again. The senior recording artist has reportedly gone on a date with Sabrina Guinness, an heiress to the Guinness drinks empire.

To those who don't know, Sabrina is Prince Charles' former lover. They dated in the 70s. And now rumor has it that McCartney and Sabrina met up to go on a secret dinner date to an Italian restaurant in London on Wednesday night March 21st.

Admitted he enjoys a close relationship with Sabrina, McCartney told Britain's Daily Mirror newspaper, "I've known this lady for a while. We enjoy each other's company and when we get together we talk about stuff like the environment and Al Gore - things like that. We have similar views."

Then he went on saying, "I have had a terrible day at the office and as you probably know I'm going through a pretty difficult divorce right now too. I just fancied going out for a few drinks to relax."

While friends of McCartney say Sabrina has been comforting him during his difficult marriage split from Heather Mills, a spokesman for Paul has denied he is dating her, saying "There's no relationship. There's nothing to it."