The term "unlicensed intercourse" can be considered crude and outdated, and there are a variety of more appropriate synonyms that can be used to describe consensual sexual activity that occurs outside the bounds of conventional monogamous relationships. Some options might include "casual sex," "hooking up," "friends with benefits," or "non-monogamous activity." It's important to note that these terms have different connotations and nuances, and the appropriate term may depend on the specific context of the situation. No matter what term is used, the important thing is always to prioritize enthusiastic consent and respectful communication between all parties involved.