This Week's Cutest Twitter Pics: Smiling Dogs, Belly Shots and More!We put the call out on Twitter for your cutest photos and you delivered! See our first-place furballs and some runners-up from our daily #cutepic photo contest


Tuesday's winner was PG-13 – so cover your eyes, kids! Owner @caninestein captured a shot of her dog in a "Menage a trois, whippet style!"