Sara Jean Underwood has been on our radar since 2006 when she joined the clan of Hugh Hefner’s hot Playboy bunnies and won Playmate of the Month for the July 2006 issue. Since then she’s given us another reason to love Instagram, Halloween, and Twitter.
Today is the blonde bombshell’s 31st birthday, proving (like Jlo) that hot girls only get better with age. Check out her sexiest photos below – the proof is in the pudding.
