The term "sexual purpose" refers to any activity or behavior that is intended to satisfy a sexual urge, desire or need. This can include various forms of sexual interactions between individuals such as intercourse, oral sex, masturbation, and other intimate physical contact. It also encompasses non-physical acts such as flirting, foreplay, and verbal expressions of love or affection that are intended to lead to a sexual encounter. The phrase is often used in legal contexts to define what constitutes a sex crime or offense, but it can also be applied more broadly to describe any behavior that has the goal of satisfying a person's sexual desires.