Sexual intercourse 英語で:

... some time prior to intercourse."

‘Ed is a lump whose idea of social intercourse is playing video games and practical jokes.

Syphilis is an infection that can be transmitted through sexual intercourse.

To avoid injury or discomfort, be sure that the vagina is lubricated before intercourse.

During the imprisonment of Sir Thomas a frequent intercourse of letters passed between him and this beloved daughter and when deprived of pen and ink he contrived to write to her with a coal.