'Cruel Intentions' stars Reese Witherspoon, Sarah Michelle Gellar and Selma Blair reunite at musical version

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Sarah Michelle ‏What?!!??? @RWitherspoon @SelmaBlair #CruelIntentionsMusical #CruelIntentions

It's not just any old high school reunion: stars of 1990s movie "Cruel Intentions," a sensational tale of teen sex, drugs and private school attended the musical parody and met the actresses who have taken on their original roles.

On Thursday, they gathered backstage to give the young actresses, including Katie Stevens from "Faking It," a motivational moment, Variety reported with both Sarah Michelle Gellar and Reese Witherspoon posting images on Instagram.

Shows of "The Unauthorized Musical Parody of Cruel Intentions" are held at 8:00 PM in Los Angeles every Thursday and Friday in June and July.