It's Always Sunny in Philadelphia
S05E1021 min· aired 11/19/2009
The D.E.N.N.I.S. System
TMDb8.9
Overview
Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.
Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.