The 14-year-old Mad Men actress tried out the Creative Recreation ping pong tables inside the bash and ended up showing everyone how to play. Nice!
Pretty Little Liars‘ actress Chloe Bridges also stepped out for the party, holding up items from the aerieREAL photo booth, and keeping cool in a fun and classic hat.
“And at the #JJSummerFiesta with @randeelicious @brittneyberault @greydamon,” she wrote on Instagram with a cool collage of photos.
FYI: Kiernan is wearing head-to-toe Tory Burch.
20+ pics inside of Kiernan and Chloe…