In an interview with Glamour magazine, the Legally Blonde star, 34, said she feels “better” about the way she looks now that she is in her thirties.
She said: 'I think as a woman, you get older, you feel more confident in your sexuality. You're not as intimidated by it, not as embarrassed by it.
'Sexuality and femininity is an accumulation of age and wisdom and comfort in your own skin. I feel better – so much better now than I ever did in my twenties.'
The Monsters Vs Aliens star is mum to Ava, 11, and Deacon, seven, with ex-husband Ryan Phillippe, and she said that she hopes to add to her family in the future.
She said: 'I would love to have more kids. Kids are the best part of my day. I don't wake up to make movies. I wake up to hang out with my family.'