How is Nikki Howard described in the novel, Airhead #1: Airhead?

Nikki Howard, the IT girl of the moment, is described as a beautiful celebrity model, who is the spokesmodel for Stark Enterprises. Nikki has a congenital brain defect and dies of an aneurism at the same time Em is crushed by a falling TV monitor. She is not a nice person, though she works hard, and her career supports many other workers. A hard partier, Nikki has a messy love life.