London, January 4 (ANI): Parents of Prince Williams girlfriend Kate Middleton have reportedly been invited to meet Prince Charles and Camilla.

Williams had taken Kate to Scotland on a surprise vacation to spend some quality time with his girlfriend, father and stepmother.

Now, Kates mother Carole and father Michael have allegedly been offered to visit them at Charles Aberdeenshire hideaway at Birkhall, reports the Daily Star.

The lovers, who have been romantically involved for six years, have been taking the break before the 26-year-old royal begins his 18-month-training programme to become a Royal Air Force rescue helicopter pilot.

The second-in-line to the throne was also said to be planning a special bash for his girlfriends birthday on January 9.

A friend of the Middleton family said: The Prince wanted to get to know Kates parents better and it seemed to be the ideal time for everyone. (ANI)