Selma Blair, Sarah Michelle Gellar Selma Blair, Sarah Michelle Gellar

Cruel Intentions fans got a big surprise when not only did Reese Witherspoon, Sarah Michelle Gellar and Selma Blair show up to the musical inspired by the movie, but Gellar and Blair also reenacted their famous kiss.

The cult film, which was released in 1999, featured the now-famous lip-lock that earned Gellar and Blair an MTV Movie Award for Best Kiss. Witherspoon, who met ex-husband Ryan Phillippe on the movie, recently talked about checking out the musical with her kids.

PHOTO: Buffy stars Sarah Michelle Gellar and Alyson Hannigan reunite!

"They don't have any interest in seeing me in movies," she told Andy Cohen earlier this month on Watch What Happens Live. "They're like, 'This is so weird!' And especially seeing me and their dad having sex. It's so weird. Not interested. They have this Cruel Intentions play in L.A. that's like a musical. So, I was going to take them to that."

Check out the kiss reenactment and other amazing reunion photos from the night!

Best girls night out. @ReeseWitherspoon @sarahmgellar #cruelintentionsthemusical

A photo posted by Selma Blair (@therealselmablair) on

#cruelintentionsthemusical @reesewitherspoon @sarahmgellar together again.

A photo posted by Selma Blair (@therealselmablair) on

@sarahmgellar Sebastian and Kathryn reunite! #cruelintentionsmusical #90sflashback

A photo posted by Reese Witherspoon (@reesewitherspoon) on