Based on the conversations with Mark, she is the smarter than Molly and the brains of the pair. She can tell if Mark was exaggerating and able to engage with him about literature. Holly also exposed Molly's real name is actually Margaret.
Holly's father and grandfather were Chapter Presidents in Delta Iota Kappa fraternity when they were in college.
Holly has long straight blonde hair with blue eyes. She wears a purple head band, and a pink sleeveless top.
Mark meets Holly along with her best friend molly at a frat party Ian convinced him to attend. Acting as a wingman for Ian, Mark attempts to impress the pair with little success. However that changes when Ian appears and kisses Mark without warning. The girls become impressed and horny and ask the boys to take them to their place.