Collocations for intercourse - noun

sexual
heterosexual, homosexual
anal, vaginal
consensual, non-consensual
unlawful (esp. BrE)
unprotected

engage in, have, indulge in (BrE)
She never had sexual intercourse before she was married.

consent to
The judge asked if she had consented to intercourse.

occur, take place
He admitted that intercourse had taken place.

during intercourse
intercourse between
intercourse between consenting adults

intercourse with
She denied having had sexual intercourse with him.
He accused her of intercourse with another man.

social
Life is a pleasant blend of work and social intercourse.