Inside Simone Masterson-Horn's Sweet 4th Birthday Bash

Paw print cookies! Mini manicures! Bouncy house! Scout Masterson and Bill Horn, a.k.a. "the Guncles," throw their daughter a lavish doggie-themed party in their L.A. home


Dads Bill Horn and Scout Masterson invited family and friends – including Tori Spelling, Sarah Michelle Gellar, Tiffani Thiessen and their kids – to their June 7 celebration. "Simone requested a dog theme, and the party took off from there," said Masterson. Here, the girl of the hour inspects her pastel-colored decorations, including this towering pink balloon with a feathery tassel, before partygoers arrive.