Mary Lou Retton?
I admit I fell in love with Keri Strug in '96. I am a sucker for competitive spirt and determination...and well yes the girl gymnasts have incredible butts.
1996 Altanta Olympics - Kerri Strug's Gold Medal Vault - YouTube
Back on topic - if Middleton wanted to hide her boobs she could have. Going bare outdoors is not exactly modest - but then we're talking boobs here. She is blessed with many things...boobs are not two of them.