«The Big Bang Theory» – Season 1 Episode 5 watch online
Episode Title: «The Hamburger Postulate»
Episode Released: 10.22.2007
Season number: 1
Episode number: 5
Episode Description: Beware, spoilers! To read - hover over the text.
Leslie refers to Leonardo that he had joined the Quartet, and together rehearsed the music on the cello at his home. Leonard agrees and not even rehearsing together with Leslie, but after rehearsals Leslie offers sex and remains with him overnight. Penny finds out and gets upset.