Amy rushes over to Penny's place when Sheldon told her Leonard was dating Priya.br Amy points out Penny's former boyfriend replaced her with a mate more suitable than she was. Priya is highly educated and comes from the land that invented neat ways to have sex. Penny is a community-college dropout whose people wrote the book on tipping cows.br S04E16 - The Cohabitation Formulation Episodebr br #ShellyPenny #KaleyCuoco #TBBTbr br DISCLAIMER:br Some of the links in description may be affiliate links. br This means that if you click on one of the links and make a purchase, br I may receive a commission (at no extra charge to you).