The Codpiece Topology

Thanks to [url=http://thep03.sytes.net/]The Power of Three[/url].
'The Codpiece Topology' - Season 2, Episode 2
After Leonard sees Penny with a handsome new mate, he starts up a relationship with Leslie Winkle. Meanwhile, Sheldon is unhappy with the presence of his mortal enemy in his apartment.
Air Date: September 29, 2008.