Kathryn Merteuil

Kathryn Merteuil is a character from the Cruel Intentions films. She's based on Marquise de Merteuil from the Pierre Choderlos de Laclos novel, Les Liaisons dangereuses.

Biography
Kathryn Merteuil was born into money and daughter of Tiffany Merteuil in New York. Tiffany raised Kathryn to be manipulative as she is, though Tiffany did not openly approve this. When Kathryn was a teenager, Tiffany married Edward Valmont who's son, Sebastian Valmont was just as manipulative and dangerous as Kathryn. After a long standing rivalry, Sebastian joined Kathryn in her games of Manipulating the student body of Manchester Prep, and anyone else. However, little that Sebastian knew, she was only using him as a toy she likes to play with.

That all changed when a girl named Annette Hargrove moved into town. Sebastian and Kathryn made a bet that if he can get Annette to lose her virginity to him, he could finally sleep with Kathryn. However, if Sebastian failed, he would lose his vintage 1956 Jaguar XK140 Roadster to Kathryn.

Sebastian a long the way, fell for Annette and lost interest in Kathryn. Kathryn then manipulated him into breaking Annette's heart. After he came to collect his 'prize,' Kathryn finally revealed to him that she's been stringing him along all these years and that she does not 'fuck losers.' After which Kathryn manipulated a mutual friend of theirs to fight Sebastian. After he confronted Sebastian, a fight ensued. Sebastian during the fight was accidentally hit by a car. He died shortly after, telling Annette he loved her.

At Sebastian's funeral, Sebastian got his revenge from the grave when Annette published his journal revealing all of Kathryn's indiscretions (which included drug-use) to the student body and her mother and step-father. What happened after is unknown, but it can be assumed that she was kicked out of school and was arrested.