When Megan Fox wed Brian Austin Green in June, it was the culmination of a relationship (with a brief 2009 split) that stretched back to 2004.

Still, Fox says she gets scrutinized for being a bride at age 24. (Green is 36.)

"When I talk about my husband, I feel as if people roll their eyes," the actress tells Elle in its October issue.

"It's like when you're 16 and order a martini, and the waiter says, 'Do you think I'm stupid?'" she jokes. "They can't grasp that I'm old enough to be married."

Fox and Green tied the knot in a super-intimate, hush-hush ceremony on a Hawaiian beach June 24. Kassius, Green's 8-year-old son with ex Vanessa Marcil, was present for the ceremony.

Earlier this year, then-engaged Fox told UsMagazine.com: "We are just even more committed to each other and we always have been. I am more in love with him now than I was in the beginning."

The October issue of Elle -- its 25th anniversary issue, featuring 25 women under 25 -- hits stands September 21