Jessica Alba refuses to do naked scenes because she doesn't want her grandparents to see her boobs.
The actress, 33, who has a nudity clause when filming movies, doesn't like to flash the flesh on the big screen for fear of her older relatives catching a glimpse of her breasts.
Speaking in the June issue of Glamour magazine, she explained: "I don't want my grandparents to see my boobs. That's it. It would be weird at Christmas. And, I mean, really, if you look at the movies I have done, getting naked would never 'elevate' the picture."
Meanwhile, the 'Sin City' star has been busy working on her business The Honest Company, which creates toxin-free household goods, nappies, and body care products.
And she admits she was inspired to create the organisation after spending her childhood in and out of hospital.
She explained: "That's [spending my childhood in hospital is] what really inspired me to start Honest. I had so many health issues, and come hell or high water, my kids were going to be as healthy as possible."
The brunette beauty - who has two children Honor, five, and Haven, two, with her husband Cash Warren - admits she felt really out of place as a child because she wasn't able to do the things other children were doing at her age.
She added: "My life was tough as a kid. I was so lonely. And I felt really disconnected from my friends because I spent so much time in the hospital with grown-ups, and felt like a weirdo."
Tagged in Jessica Alba