INDIANAPOLIS — Two sophomore girls have sued their school district after they were punished for posting sexually suggestive photos on MySpace [website] during their summer vacation.

The American Civil Liberties Union, in a federal lawsuit filed last week on behalf of the girls, argues that Churubusco High School violated the girls’ free speech rights when it banned them from extracurricular activities for a joke that didn’t involve the school. They say the district humiliated the girls by requiring them to apologize to an all-male coaches’ board and undergo counseling.