Movie: Foxfire (1996)

A drifter named Margaret "Legs" Sadovsky (Jolie) shows up one day and shakes up a group of high school girls, inspiring them to beat up a teacher who makes inappropriate advances and later break into the school, where they end up setting off the sprinkler system. They regroup in an abandoned house, and then things get weird; Legs whips her top off and gives herself a tattoo on one breast, and as a sign of solidarity (or something) Maddie Wirtz (Burress) gets topless herself, and lets Legs ink her boob up as well.