We don't know who thought of it, but they should be richer than Pam Anderson by now.
But getting a consensus on whose ass crack does actually inform the story, and whose nipples are completely surplus to narrative requirements, is a much, um, slipperier issue.
Modeling appeals to her because of the glamour, travel, and fashion involved.
From the surgically enhanced to the natural ones, below is a list of the best celebrity boobs in Hollywood.