"Casual sex" is a term that refers to sexual activity without any commitment or emotional attachment. However, there are several other synonyms that can be used to describe this kind of sexual behavior. Some of the most common ones include "one-night stands", "flings", "hookups", "booty calls", "friends with benefits", and "no-strings-attached sex". These terms generally refer to brief and casual sexual encounters that are not conducted within the context of a committed relationship. While casual sex has become more socially acceptable in recent years, it is important to remember to take precautions to protect your sexual health and emotional well-being.