ANN ARBOR, Mich. (AP) - Thirteen members of a high school lacrosse team have been disciplined for baring their bottoms to extend a prom invitation from one player to a girl.

The varsity lacrosse players at Huron High school displayed the question: "Will You Go To The Prom With Me? Yes or No?" on their backsides, which they revealed during a junior varsity game last week.

School officials suspended the 13 players for an undetermined number of games and ordered them to perform 20 hours of community service. The players were also suspended from school for one day.

"Inappropriate is inappropriate," school athletic director Dottie Davis told The Ann Arbor News on Monday. "It disrespects women, and that's the clear message we need to have the students understand - what may be fun to them isn't necessarily fun to everyone else."

Carolyn Campbell accepted the invitation to go to the prom with fellow senior Kristoff Wennersten by patting the back of the player who displayed the word "Yes."

"People get pretty creative with prom. Anyone who's done anything has been pretty outlandish," Campbell said. "This is pretty epic, I would say. I didn't think it would become this big of a deal."

Wennersten said he understood the decision to discipline him and his teammates, adding, "I enjoyed every bit of it."