Liv Tyler: I Wanna Be Like Heidi Montag!

Okay, so she never actually evokes the name of the ditzy, fame-crazed, attention whore from The Hills. But Liv Tyler is one star who isn't swearing off plastic surgery.

"I'm definitely going to have some, I'm sure," the actress, who turns 30 on July 1, tells Allure. "Especially when you see what happens to your body after you have a baby."

We respect your opinion, Liv, but please, check out a pic of Ashlee Simpson or Heidi Montag and see what happens to a once-cute bod after too much plastic surgery.

After her son Milo was born in December 2004, Tyler tried hard to lose weight, saying "I tried to get back into shape, so I went to the gym every day, sometimes twice."

But looking good is part of the job. The Lord of the Rings star models for Givenchy and stars in this summer's thriller The Strangers.

"I have to make a living," Liv Tyler says. "I guess I could sell my house and go live a really simple life in a trailer somewhere."

But as the daughter of famous parents (Aerosmith's Steven Tyler and model Bebe Buell), she's pals with other second generation celebrities, including Kate Hudson, whose son Ryder, 3, has play dates with Milo.

Tyler and Hudson also played lovers in the 2000 movie Dr. T and the Women. We have dispatched an intern to go out and rent this girl-on-girl action right now.

"She plays a woman who is about to get married, and she's completely in love with me," Tyler tells Allure.

"We were always so shy about the kissing, but in retrospect we were like, ‘We so should have just totally made out and tongued each other.' But we never did; we were so scared."

At least Liv can make up for lost time with Kate Bosworth. But even as a teen, Liv Tyler was hesitant to push the envelope.

"I never had that much to rebel against because my parents were always so cool," she says. "I mean, what could I do? Run away and smoke a joint and go to rock concerts for the weekend? I mean, that's all they ever did."

Instead, she says, "I've always been super-responsible and hard-working and kind of a worrier."