Young, beautiful, sexy female bartenders dart around behind the mahogany bar serving drinks to anxious customers and pocketing generous tips. The bartenders are dressed in very low cut V-neck midriff tops displaying surgically enhanced breasts and low-slung, hip-hugging, skin-tight stretch pants that reveal muscled abdomens and tattoos right above the buttocks. Tao, Marquee, Pure, Lavo, Ghostbar—all nightclubs in Las Vegas casinos. The music blasts, and the crowded dance floor rocks. These clubs are huge—50,000-60,000 square feet on multiple levels. Not long ago, only men held bartender jobs in Las Vegas, but in little more than a decade, female bartenders have taken over the majority of the jobs in the casino nightclubs. There are still young male bartenders here—good-looking, muscular guys who sport black vests, black shirts, and ties, but they are in the minority now. And there are none who are over 35.