Kathy Hilton is known to throw over-the-top fetes, so it's no surprise that when she decided to host a viewing party for The Real Housewives of Beverly Hills'  May 26 episode, she went all out on everything from the food to the decor. 

"We are here at my sister Kathy's house," Kyle Richards said in an Instagram video with Lisa Rinna, Dorit Kemsley, and Kathy's daughter Paris Hilton. "We're here celebrating." 

Ladies of London alum Marissa Hermer also attended the celebration and documented all of the incredible details. As seen in Marissa's Instagram Story photos, Kathy decked out her backyard with balloons that spelled out "Beverly Hills" and served guests "the largest pizza in the world" from Big Mama's and Papa's Pizzeria in Los Angeles. 

Before showing the episode on an outdoor projector placed behind Kathy's gorgeous pool, Kathy, Kyle, Lisa, Dorit, and RHOBH newcomer Crystal Kung Minkoff briefly welcomed the guests together. As Kathy's friends and family watched the show, they were seated in a dreamy setting at tables topped with pink tablecloths and gorgeous pink and white floral arrangements. 

The inside of the home was also beautifully decorated with even more eye-catching balloons. Housewife favorite balloon decor company OC Balloon Bar shared photos of a pink and white balloon arch featuring silver balloons that created the message, "Women on Top."

One day after the event, Lisa reposted Kyle's video and raved, "Thank you [Kathy] for a fabulous party!"

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