It's love or lust don't know but girls today r very fast and want to experience everything immediately, even guy restricts they become violent & it's difficult for guys to hide their emotions.Do u think only a teenage girl is craving for sex as casually oh common all of them crave for sex...even its boy or a girl...
It's age factor and as boss babe said immaturity sex has become casual, it's not love they name love for sex