Pippa Middleton and George Percy reportedly dating, Pippa Middleton may be following in her sister Kate's footsteps.

The younger sister of the Duchess of Cambridge is reportedly dating George Percy, heir to the Duke of Northumberland, whose family owns Alnwick Castle in Northumberland - known to most as Hogwarts School of Witchcraft and Wizardry in the "Harry Potter" films.

Percy, 27, and Middleton, 28, have been close friends since attending Edinburgh University together, reports the Daily Mail. They are said to have dated in 2008, the final year of their studies.

"George is very smitten and completely in love with her," a source told British tabloid The Sun.

The two were linked after Middleton split from boyfriend Alex Loudon last year, but insisted at the time that they were "just friends," according to the Daily Mail.

Percy and Middleton are said to have started dating again after the Middleton family's New Year's Eve celebration.