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

10/21/2016 7:18 AM PDT

Paris Hilton's No.1 On Trick or Treat Route was The Playboy Mansion!

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.