Sebastian Valmont is a fictional character from the novel "Les Liaisons Dangereuses," written by Pierre Choderlos de Laclos in 1782. He is portrayed as a charming and manipulative young nobleman who engages in a game of seduction and deceit. Valmont's character embodies themes of power, morality, and the complexities of human relationships. In the story, Sebastian Valmont seeks to seduce Madame de Tourvel, a virtuous woman, as part of a wager with Marquise de Merteuil. His actions lead to dramatic consequences, highlighting the destructive nature of manipulation and the impact of societal expectations on personal desires.