September 10, 2014 11:36 AM EDT

Scary Movie star Anna Faris said on Conan Tuesday that she loves to anonymously send sexy 80’s-style postcards of scantily-clad women to her mom, whom she says is quite conservative.

“I know that as he’s putting the postcard into the mailbox, I see my mom envisioning that, and I can feel her getting annoyed, and I delight in that,” Faris told host Conan O’Brien.

Faris plays a mom herself on television in her show Mom. The show will have its second-season premiere on Sept. 29.


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