A one-night stand is a single sexual encounter in which there is an expectation that there shall be no further relations between the sexual participants. The practice can be described as sexual activity without emotional commitment or future involvement.

Is it a one-night stand if you know the person?

Dont ever think that having a one night stand is going to change anyone – yourself or the other person. Dont do it if you already know you are going to have a regret hangover. Dont do it if you know that youll get emotionally attached/dependent/clingy/anxious.