The D.E.N.N.I.S. System still
It’s Always Sunny in Philadelphia • SEASON 5 EPISODE 10

The D.E.N.N.I.S. System

It’s Always Sunny in PhiladelphiaSeason 5Episode 10Nov 19, 200921 min

Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.

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