Washington, June 19 Hollywood actress Sienna Miller fears that she's losing her good looks as she heads towards 30.

The 27-year-old actress believes that it's time for her to start working out a bit.

"I'm lucky I've got a good metabolism. I'm very grateful for that. But I'm not toned at all. I think I've reached an age at 27 where it's time for me to start working out a bit. I can't get away with it any more," Contactmusic quoted her as saying.

"I used to be quite firm and tiny and, as I hit 25, things started to change. Now I'm 27 I'm noticing more changes - bare legs at the top and back is not a pretty sight. I'm lazy and if I wear clothes, it's hidden well.

"I don't feel like a beauty icon. I get pretty insecure and have the same insecurities as everyone else - sometimes more because there is more focus put on me," she added. (ANI)