Actress Megan Fox says people struggle to understand that she's a married woman because she's so young.

The 24-year-old actress tied the knot with Brian Austin Green at a secret Hawaiian ceremony but claims she is met with disbelief when she says she is someone's wife because of her age.

'They can't grasp that I'm old enough to be married. When I talk about my husband, I feel as if people roll their eyes. It's like when you're 16 and order a martini and the waiter says, 'Do you think I'm stupid?',' femalefirst.co.uk quoted her as saying.

Megan and Brian called off their first engagement in February 2009 after five years, but they soon got back together before announcing their plans to tie the knot.