intimate with (someone)
euphemism Referring to participating in a sex act with someone. I hope Kristina realizes that she's too young to be intimate with anyone. Can you believe that Grandma asked me if I've been intimate with Ted? How embarrassing!
*intimate with someone
Euph. having sexual intercourse with someone. (*Typically: be ~; get ~.) He had never been intimate with a woman before. They were intimate with each other for the first time that night.