‘Cruel Intentions’ reunion: Sarah Michelle Gellar, Selma Blair re-create <i>that</i> kiss

What is this, 1999? Sarah Michelle Gellar, Reese Witherspoon and Selma Blair threw way back on Thursday by staging a "Cruel Intentions" reunion.

The actresses, who costarred in the sordid cult classic, got together to take in the campy "Unauthorized Musical Parody of Cruel Intentions" at the Rockwell Table and Stage in L.A.'s Los Feliz neighborhood and kept followers privy to their epic girls' night out.

The night kicked off with Witherspoon posting a selfie with her former costars, then evolved into the three re-creating the film's then-infamous girl-on-girl kiss scene between Blair's Cecile and Gellar's Kathryn.

"The only kiss that matters @SarahMGellar," Blair wrote, with Gellar adding, ".@SelmaBlair Good thing we've had all that practice!! #CruelIntentions"

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

A photo posted by Reese Witherspoon (@reesewitherspoon) on May 28, 2015 at 9:20pm PDT

#Repost @thekatiestevens with @repostapp. ¿¿¿ WHAT IS THIS LIFE?! Thank you @sarahmgellar @reesewitherspoon and @therealselmablair for coming to the show tonight! and happy birthday to @rogerkumble!!! #cruelintentionsmusical

A photo posted by Sarah Michelle (@sarahmgellar) on May 28, 2015 at 11:52pm PDT

The contemporary film adaptation of Pierre Choderlos de Laclos' 1782 novel "Les Liaisons dangereuses" was all about sociopathic socialite Kathryn betting her stepbrother Sebastian (Ryan Phillippe) to seduce fresh-faced virgin Annette (Witherspoon). She just happened to teach Cecile how to French kiss along the way ... and do a several other cruel things as the diabolical "Marcia [expletive] Brady of the Upper East Side."

The girls also smooched as they walked the red carpet where they posed with the cast and thanked them for "an amazing show."

#Manifesto you know what that means, it's a #BittersweetSymphony ¿¿¿¿¿¿¿¿this life @reesewitherspoon @therealselmablair #cruelintentionsmusical #CruelIntentions

A photo posted by Sarah Michelle (@sarahmgellar) on May 29, 2015 at 7:09am PDT

Gellar, who is married to actor Freddie Prinze Jr., must have been feeling extra-nostalgic this week because on Saturday she reunited with her "Buffy the Vampire Slayer" costar Alyson Hannigan when they celebrated the birthday of Hannigan's daughter.

So this girl (#AlysonHannigan) and her husband (#AlexisDenisof) know how to throw a party. I thought I was good with the crafts, till I went to this party #CraftMaster Thanks for having the #PrinzeFamily I've never seen a farm and pony rides in Santa Monica before #NowIveSeenItAll

A photo posted by Sarah Michelle (@sarahmgellar) on May 23, 2015 at 2:03pm PDT

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