Chris Hemsworth and Elsa Pataky have been on a "constant honeymoon" since they got married.

The couple - who are expecting their first child together - tied the knot in December 2010 after almost a year of dating and the actress says they have loved every minute of married life so far.

She said: "Marriage has been wonderful. A constant honeymoon. I feel very lucky to have found the person who completes me."

Though she doesn't know the gender of her unborn tot, Elsa is expecting their baby to be "stubborn" because it is a characteristic shared by herself and her spouse.

She explained: "Because it's our first child, we would be happy with either a boy or a girl. The only thing we care about is that it is healthy. But it's bound to be stubborn because we both have such strong personalities."

Elsa - who is Spanish - also admitted she has no idea where she and Australian-born Chris will welcome their child into the world because her spouse is so busy.

Asked where the baby will be born, she told Britain's HELLO! magazine: "We don't know yet. It depends where we are. We move about all the time. Chris has got a lot of projects on The Go and at least four movies coming out this year, so it depends on that. Wherever he is, that's where I'll be."