![The Hamburger Postulate](/assets/artwork/1x1.gif)
The Big Bang Theory
The Hamburger Postulate
S1 E5:
After sensing that his pursuit of Penny isn't going anywhere, Leonard agrees to an unexpected sexual encounter with fellow scientist Leslie Winkle (recurring guest star Sara Gilbert). The one-night stand throws Leonard and Sheldon deep into uncharted social waters.
Starring
Sara Gilbert