The act of having sexual intercourse can be expressed in several different ways. Some synonyms for "had sexual intercourse" include "had sex," "made love," "slept with," "hooked up," "got intimate," "engaged in coitus," "had relations," and "copulated." Depending on the context, some of these terms may be more appropriate than others. It's important to note that consent is always necessary for any sexual activity, and using respectful language when discussing sex is important. Ultimately, it's up to individuals to decide which terminology they feel most comfortable with when discussing their sexual experiences.