Paris Hilton No.1 On My Trick or Treat Route ... The Playboy Mansion!

10/21/2016 7:18 AM PDT
EXCLUSIVE

The Playboy Mansion is known for its epic Halloween parties, but turns out rich kids in the neighborhood like Paris Hilton door-knocked on fright night ... 'cause it was the best candy in town. 

Paris was leaving the Delilah opening in WeHo Thursday night when she dropped a living paradox known as Hugh Hefner.

Turns out Hef had some stiff competition, from someone with an even bigger mansion.