British socialite Petra Ecclestone is reportedly pregnant.

The 23-year-old daughter of Formula One CEO Bernie Ecclestone is expecting her first child with businessman James Stunt, according to news website The Daily.

The heiress married Stunt in August, 2011 in a castle near Rome, Italy.

The couple will have plenty of room for a nursery at home - last year (11), Ecclestone paid $85 million (£53 million) for Candy Spelling's mega-mansion, the largest residence in Los Angeles County.