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What is Casual Encounters: A casual encounters or casual sex also known as fuck buddies refers to certain types of sexual activity outside the context of a romantic relationship. The term is not always used consistently: some use it to refer to any extramarital sex, some use it to refer to sex in a casual relationship; some also refer this to flings among adult singles, which is No String Attached relationship, also known as NSA dating.
NSA dating may turn out to be casual relationships where some sort of emotion attached but nothing more than a fling. Whereas, others reserve its use for one-time encounters, promiscuity, or to refer to sex in the absence of emotional attachment or love, casual encounters and casual relationship also known as illicit encounters among many adults.