Sandra Bullock doesn't mind talking about her fashion past as long as you don't ask about her embarrassing "Pink Walrus" period.

The actress gained about 15 pounds for her part in 1996's In Love and War and still jokes privately with pals about the pink satin Calvin Klein dress she wore for the premiere.

"I'd been measured for the dress months before, so I had to pour myself into it," she tells Allure. "I was busting out at the seams ? I was a fat, shiny, pink walrus. [After the screening] I bent over to get in the car and busted the strap, and my boob fell out."

Fortunately, one of Bullock's quick-thinking friends jumped out of the limo, came back with a sewing kit and mended the dress as the driver circled the area. "Do not go pulling out pictures of that night," she warns the fashion magazine. "I will never buy your magazine again if you ever...."

Since her Pink Walrus period, Bullock says she's been eating healthy and working out regularly. Except on weekends, that is: "I give myself all the leeway in the world. I love raw cookie dough, right out of the tube. The other thing I eat is marshmallow fluff." Watch out, Sandra... sounds like a meal fit for a pink walrus if ever there was one.