Chris Hemsworth "puts the brakes" on pregnant wife Elsa Pataky

Chris Hemsworth has reportedly had to "put the brakes on" his pregnant wife Elsa Pataky.

The 28-year-old Thor actor, who married Pataky last year, has allegedly told her that she needs to stop being so active and taking risks now that she is expecting their baby.

Pataky told Hello! magazine: "I'm pregnant and I say, 'But I can't go surfing? Are you sure I can't go horseriding or on the motorbike?' I've always been like that. I like risk. I realise it's nuts, but it goes through my head.

"My mother holds her head in her hands, then she makes me see sense. My husband too. He puts the brakes on and the worst thing is I have to listen."

Pataky said that she is not as strict with her diet as she used to be, admitting: "I don't like the healthy food I used to love. Now all I want is sweet things, rubbish like hamburgers, chips - all the stuff I never used to touch. I try not to go over the top because I need to look after myself for my work. I'm always doing things related to my image.

"But I do treat myself. I'm not as strict as before. I never used to eat popcorn. Not even in the cinema. Now I eat it all the time! I've always had a sweet tooth but now I indulge it a bit more. Before I'd have a rice cake for breakfast. Now I have a muffin."

Hemsworth can next be seen in The Avengers, which arrives in cinemas worldwide on May 4, 2012.

Watch the trailer for The Avengers below: