I definitely cannot speak from personal experience or even secondary experience as most of my girlfriends have not been on the pill. However body size ratios do vary scientifically from women on the pill to off it. Strippers on the pill consistently make less tip money than strippers off the pill no matter what phase of fertility the one's off the pill are in. There are slight shifts in distribution during the fertility phase in women normally that influence male attraction however while on the pill it basically sets your body into the "least interesting" configuration nonstop due to the hormonal changes.
"You can demonstrate the purpose and limits of human digestion with a simple experiment: eat a steak with some whole corn kernels, and see what comes out the other end. It won’t be the steak."