Three years ago, Rep. Joe Towns failed to make Tennessee the first state to fine teenagers for wearing saggy britches. Now the Memphis Democrat has a more comprehensive measure to prohibit "risque dressing" in schools - and its chances of passage are looking good. The proposal is headed for a House floor vote and is moving steadily in the Senate. It seeks to prohibit students from exposing "underwear or body parts in an indecent manner that disrupts the learning environment." In addition to boys not sagging their pants, it means female student athletes would have to wear shirts over sports bras that school officials deem inappropriate. Currently, Arkansas and Florida are the only states that target schools for a saggy pants ban, according to the National Conference of State Legislatures.