Pamela Anderson swears that it is the lighting on movie sets that make her bust look bigger than it really is.

The former Baywatch babe is famous for the ever changing size of her twin assets, but Pammie herself feels that it is the lighting that makes her breasts 'expand'.

"I swear, I don't feel that big and when I look at them on TV I think 'who is that?'hey just go, wooo.... They expand. It's lighting. It's all lighting!" The Sun quoted her, as saying.

Apart from her bust, and the way she filled out the red swimsuit when she played lifeguard CJ Parker on 'Baywatch', Pammie is perhaps most famous for the sex tape she made with then hubby Tommy Lee.

When asked whether she has told her kids about the tape, the actress revealed that she had managed not to shock her sons by telling them that she and Lee used to "video tape everything" that they had done when they were together.

"I said: 'You know, when your dad and I were first together we used to video tape everything. Everybody's naked, hugging, kissing, all that good stuff and someone stole the tape,'" she revealed.

The buxom blonde will now be seen on the big screen in the comedy 'Blonde and Blonder', in which she co-stars with Denise Richards.