Alessandra Ambrosio -- SUPERMODEL. EATS. PIZZA!!!!!!!!!

Here's Victoria's Secret supermodel Alessandra Ambrosio taking a bite out of an actual piece of edible pizza in L.A. yesterday ... and carefully contemplating whether or not to spit it out.

It's not the first time Alessandra cheated on her supermodel diet -- earlier this year, she was spotted chewing on a breadstick in an L.A. supermarket.

Also, in 2012, she was photographed taking a bite of chocolate cake ... and was spotted with an ice cream cone in 2009.

Glutton.