Watch How Anna Faris Pranks Her Mom

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.