'Big Bang Theory' spoiler alert: What's the story behind this picture?

http://ausiellofiles.ew.com/2010/08/28/big-bang-theory-spoiler-sheldon-penny/

Why is Penny tagging along on Sheldon’s first date with Amy (Mayim Bialik) in the season premiere of The Big Bang Theory? Kaley Cuoco provided some much needed context at last night’s 2010 Entertainment Weekly and Women in Film pre-Emmy bash. The game actress also offered a spoiler about an upcoming episode involving expensive *o*o*s, and tearfully accepted Big Bang‘s EWwy award for best comedy series. The Cuoco Q&A is after the jump!