The sisters who were there with hundreds of fans fortunately dogged the eggs.
According to TMZ, Police say the 30-year-old was perched on a higher floor of the mall when she hurled several eggs down at Kylie and Kendall. The eggs hit the stage, and splattered on some fans.
Police spotted the woman and arrested her for offensive behavior. During the bust, police say she spit on one of the officers so they also booked her for assault.