S05E10
The D.E.N.N.I.S. System
Aired November 19, 2009
Free, with no ads. Tick off what you watch and see what airs next.
Summary
Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.
TV Binge Diary
Keep track of It's Always Sunny in Philadelphia
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