Hooking UpA closer look into the new sexual culture on college campuses It happens every weekend: In a haze of hormones and alcohol, groups of male and female college students meet at a frat party, a bar, or hanging out in a dorm room, and then hook up for an evening of sex first, questions later. As casually as the sexual encounter begins, so it often ends with no strings attached; after all, it was just a hook up. While a hook up might mean anything from